magnetoencephalography

Summary

Summary: The measurement of magnetic fields over the head generated by electric currents in the brain. As in any electrical conductor, electric fields in the brain are accompanied by orthogonal magnetic fields. The measurement of these fields provides information about the localization of brain activity which is complementary to that provided by electroencephalography. Magnetoencephalography may be used alone or together with electroencephalography, for measurement of spontaneous or evoked activity, and for research or clinical purposes.

Top Publications

  1. ncbi Tangential derivative mapping of axial MEG applied to event-related desynchronization research
    M C Bastiaansen
    Cooperation Centre Tilburg and Eindhoven Universities, The, Tilburg, Netherlands
    Clin Neurophysiol 111:1300-5. 2000
  2. pmc Dynamic imaging of coherent sources: Studying neural interactions in the human brain
    J Gross
    Department of Neurology, Heinrich-Heine-University, Moorenstrasse 5, D-40225 Duesseldorf, Germany
    Proc Natl Acad Sci U S A 98:694-9. 2001
  3. ncbi Nonparametric statistical testing of EEG- and MEG-data
    Eric Maris
    NICI, Biological Psychology, Radboud University Nijmegen, Nijmegen, The Netherlands
    J Neurosci Methods 164:177-90. 2007
  4. ncbi Source connectivity analysis with MEG and EEG
    Jan Mathijs Schoffelen
    Centre for Cognitive Neuroimaging, Department of Psychology, University of Glasgow, 58 Hillhead Street, Glasgow, United Kingdom
    Hum Brain Mapp 30:1857-65. 2009
  5. pmc Resting GABA concentration predicts peak gamma frequency and fMRI amplitude in response to visual stimulation in humans
    Suresh D Muthukumaraswamy
    Cardiff University Brain Research Imaging Centre, School of Psychology and CUBRIC and Schools of Chemistry and Biosciences, Cardiff University, Cardiff, United Kingdom
    Proc Natl Acad Sci U S A 106:8356-61. 2009
  6. pmc FieldTrip: Open source software for advanced analysis of MEG, EEG, and invasive electrophysiological data
    Robert Oostenveld
    Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, Radboud University Nijmegen, The Netherlands
    Comput Intell Neurosci 2011:156869. 2011
  7. ncbi Graph theoretical analysis of magnetoencephalographic functional connectivity in Alzheimer's disease
    C J Stam
    Department of Clinical Neurophysiology and MEG, Amsterdam, The Netherlands
    Brain 132:213-24. 2009
  8. pmc Investigating the electrophysiological basis of resting state networks using magnetoencephalography
    Matthew J Brookes
    Sir Peter Mansfield Magnetic Resonance Centre, School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG72RD, United Kingdom
    Proc Natl Acad Sci U S A 108:16783-8. 2011
  9. pmc Analysis of dynamic brain imaging data
    P P Mitra
    Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey 07974 USA
    Biophys J 76:691-708. 1999
  10. ncbi Identifying true brain interaction from EEG data using the imaginary part of coherency
    Guido Nolte
    Human Motor Control Section, NINDS, NIH, 10 Center Drive MSC 1428, Bldg 10, Room 5N226, Bethesda, MD 20892 1428, USA
    Clin Neurophysiol 115:2292-307. 2004

Detail Information

Publications340 found, 100 shown here

  1. ncbi Tangential derivative mapping of axial MEG applied to event-related desynchronization research
    M C Bastiaansen
    Cooperation Centre Tilburg and Eindhoven Universities, The, Tilburg, Netherlands
    Clin Neurophysiol 111:1300-5. 2000
    ..This is problematic for the computation of event-related desynchronization (ERD) on MEG data, since ERD relies on a correspondence between the signal maximum and the location of the neuronal generator...
  2. pmc Dynamic imaging of coherent sources: Studying neural interactions in the human brain
    J Gross
    Department of Neurology, Heinrich-Heine-University, Moorenstrasse 5, D-40225 Duesseldorf, Germany
    Proc Natl Acad Sci U S A 98:694-9. 2001
    ....
  3. ncbi Nonparametric statistical testing of EEG- and MEG-data
    Eric Maris
    NICI, Biological Psychology, Radboud University Nijmegen, Nijmegen, The Netherlands
    J Neurosci Methods 164:177-90. 2007
    ..This means that we formulate a null hypothesis (identical probability distribution in the different experimental conditions) and show that the nonparametric test controls the false alarm rate under this null hypothesis...
  4. ncbi Source connectivity analysis with MEG and EEG
    Jan Mathijs Schoffelen
    Centre for Cognitive Neuroimaging, Department of Psychology, University of Glasgow, 58 Hillhead Street, Glasgow, United Kingdom
    Hum Brain Mapp 30:1857-65. 2009
    Interactions between functionally specialized brain regions are crucial for normal brain function. Magnetoencephalography (MEG) and electroencephalography (EEG) are techniques suited to capture these interactions, because they provide ..
  5. pmc Resting GABA concentration predicts peak gamma frequency and fMRI amplitude in response to visual stimulation in humans
    Suresh D Muthukumaraswamy
    Cardiff University Brain Research Imaging Centre, School of Psychology and CUBRIC and Schools of Chemistry and Biosciences, Cardiff University, Cardiff, United Kingdom
    Proc Natl Acad Sci U S A 106:8356-61. 2009
    ..functional MRI (fMRI) of the blood oxygen level-dependent (BOLD) response and electroencephalography or magnetoencephalography (MEG) recordings of neural oscillations being 2 of the most popular approaches...
  6. pmc FieldTrip: Open source software for advanced analysis of MEG, EEG, and invasive electrophysiological data
    Robert Oostenveld
    Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, Radboud University Nijmegen, The Netherlands
    Comput Intell Neurosci 2011:156869. 2011
    ..Furthermore, users and developers can easily extend the functionality and implement new algorithms. The modular design facilitates the reuse in other software packages...
  7. ncbi Graph theoretical analysis of magnetoencephalographic functional connectivity in Alzheimer's disease
    C J Stam
    Department of Clinical Neurophysiology and MEG, Amsterdam, The Netherlands
    Brain 132:213-24. 2009
    ..The modelling results suggest that highly connected neural network 'hubs' may be especially at risk in Alzheimer's disease...
  8. pmc Investigating the electrophysiological basis of resting state networks using magnetoencephalography
    Matthew J Brookes
    Sir Peter Mansfield Magnetic Resonance Centre, School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG72RD, United Kingdom
    Proc Natl Acad Sci U S A 108:16783-8. 2011
    ..In this paper we describe a means to characterize resting state brain networks independently using magnetoencephalography (MEG), a neuroimaging modality that bypasses the hemodynamic response and measures the magnetic fields ..
  9. pmc Analysis of dynamic brain imaging data
    P P Mitra
    Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey 07974 USA
    Biophys J 76:691-708. 1999
    ..including functional magnetic resonance imaging, intrinsic and extrinsic contrast optical imaging, and magnetoencephalography, generate large data sets with complex content...
  10. ncbi Identifying true brain interaction from EEG data using the imaginary part of coherency
    Guido Nolte
    Human Motor Control Section, NINDS, NIH, 10 Center Drive MSC 1428, Bldg 10, Room 5N226, Bethesda, MD 20892 1428, USA
    Clin Neurophysiol 115:2292-307. 2004
    ..Here, we present an approach which is insensitive to false connectivity arising from volume conduction...
  11. ncbi The mismatch negativity (MMN) in basic research of central auditory processing: a review
    R Naatanen
    Cognitive Brain Research Unit, Department of Psychology, University of Helsinki, Helsinki, Finland
    Clin Neurophysiol 118:2544-90. 2007
    ..the basic research using the mismatch negativity (MMN) and analogous results obtained by using the magnetoencephalography (MEG) and other brain-imaging technologies is reviewed...
  12. ncbi The magnetic lead field theorem in the quasi-static approximation and its use for magnetoencephalography forward calculation in realistic volume conductors
    Guido Nolte
    Human Motor Control Section, NINDS, NIH, Bethesda, MD, USA
    Phys Med Biol 48:3637-52. 2003
    The equation for the magnetic lead field for a given magnetoencephalography (MEG) channel is well known for arbitrary frequencies omega but is not directly applicable to MEG in the quasi-static approximation...
  13. ncbi The neural code of auditory phantom perception
    Nathan Weisz
    Department of Psychology, University of Konstanz, D 78464 Konstanz, Germany
    J Neurosci 27:1479-84. 2007
    ..These periods were extracted from 5 min of resting spontaneous magnetoencephalography activity in 26 tinnitus and 21 control subjects...
  14. ncbi Spatiotemporal signal space separation method for rejecting nearby interference in MEG measurements
    S Taulu
    Elekta Neuromag Oy, Helsinki, Finland
    Phys Med Biol 51:1759-68. 2006
    Limitations of traditional magnetoencephalography (MEG) exclude some important patient groups from MEG examinations, such as epilepsy patients with a vagus nerve stimulator, patients with magnetic particles on the head or having magnetic ..
  15. pmc EEG and MEG data analysis in SPM8
    Vladimir Litvak
    The Wellcome Trust Centre for Neuroimaging, UCL Institute of Neurology, Queen Square, London, UK
    Comput Intell Neurosci 2011:852961. 2011
    ....
  16. ncbi Standardized low-resolution brain electromagnetic tomography (sLORETA): technical details
    R D Pascual-Marqui
    KEY Institute for Brain Mind Research, University Hospital of Psychiatry, Zurich, Switzerland
    Methods Find Exp Clin Pharmacol 24:5-12. 2002
    ..The purpose of this paper is to present the technical details of the method, allowing researchers to test, check, reproduce and validate the new method...
  17. ncbi Phase lag index: assessment of functional connectivity from multi channel EEG and MEG with diminished bias from common sources
    Cornelis J Stam
    Department of Clinical Neurophysiology, VU University Medical Center, Amsterdam, The Netherlands
    Hum Brain Mapp 28:1178-93. 2007
    ....
  18. ncbi Dynamic statistical parametric mapping: combining fMRI and MEG for high-resolution imaging of cortical activity
    A M Dale
    Massachusetts General Hospital Nuclear Magnetic Resonance Center, Charlestown 02129, USA
    Neuron 26:55-67. 2000
    ..Here, we describe a technique that combines structural and functional MRI with magnetoencephalography (MEG) to obtain spatiotemporal maps of human brain activity with millisecond temporal resolution...
  19. pmc Tinnitus intensity dependent gamma oscillations of the contralateral auditory cortex
    Elsa van der Loo
    Brain Research centre Antwerp for Innovative and Interdisciplinary Neuromodulation BRAI 2 N, University Hospital Antwerp, Antwerp, Belgium
    PLoS ONE 4:e7396. 2009
    ..Tinnitus as a phantom phenomenon is related to hyperactivity and reorganization of the auditory cortex. Magnetoencephalography studies demonstrate a correlation between gamma band activity in the contralateral auditory cortex and the ..
  20. pmc Good practice for conducting and reporting MEG research
    Joachim Gross
    Centre for Cognitive Neuroimaging, University of Glasgow, Glasgow, UK
    Neuroimage 65:349-63. 2013
    ....
  21. ncbi Frontal theta activity in humans increases with memory load in a working memory task
    Ole Jensen
    Brain Research Unit, Low Temperature Laboratory, Helsinki University of Technology, FIN 02015 HUT, Finland
    Eur J Neurosci 15:1395-9. 2002
    ..Following the memory task the theta activity was reduced. These results suggest that theta oscillations generated in frontal brain regions play an active role in memory maintenance...
  22. pmc Resting functional connectivity in patients with brain tumors in eloquent areas
    Juan Martino
    Department of Neurological Surgery, Hospital Universitario Marques de Valdecilla, Instituto de Formación e Investigación Marqués de Valdecilla, Santander, Cantabria, Spain
    Ann Neurol 69:521-32. 2011
    ..The aim of the present work is to evaluate the value of preoperative magnetoencephalography (MEG) imaging of functional connectivity to predict the results of intraoperative electrical stimulation (..
  23. pmc Temporal dynamics of spontaneous MEG activity in brain networks
    Francesco de Pasquale
    Institute for Advanced Biomedical Technologies, G d Annunzio University Foundation, G D Annunzio University, 66100 Chieti, Italy
    Proc Natl Acad Sci U S A 107:6040-5. 2010
    ....
  24. ncbi Functional connectivity patterns of human magnetoencephalographic recordings: a 'small-world' network?
    C J Stam
    Department of Clinical Neurophysiology, VU University Medical Center, P O Box 7057, 1007 MB Amsterdam, The Netherlands
    Neurosci Lett 355:25-8. 2004
    EEG and MEG (magnetoencephalography) are widely used to study functional connectivity between different brain regions. We address the question whether such connectivity patterns display an optimal organization for information processing...
  25. ncbi Multiple sparse priors for the M/EEG inverse problem
    Karl Friston
    The Wellcome Trust Centre for Neuroimaging, Institute of Neurology, UCL, 12 Queen Square, London, WC1N 3BG, UK
    Neuroimage 39:1104-20. 2008
    ..of hierarchical or empirical Bayes to the distributed source reconstruction problem in electro- and magnetoencephalography (EEG and MEG)...
  26. ncbi Rhythmic and dysrhythmic thalamocortical dynamics: GABA systems and the edge effect
    Rodolfo Llinas
    Department of Physiology and Neuroscience, New York University School of Medicine, 550 First Avenue, New York, NY 10016, USA
    Trends Neurosci 28:325-33. 2005
    ..At the thalamic level, GABA-mediated inhibition modulates and resets distribution of the ongoing thalamocortical rhythmic oscillations that bind multisensory inputs into a single cognitive experience and regulate arousal levels...
  27. ncbi Neuronal coherence as a mechanism of effective corticospinal interaction
    Jan Mathijs Schoffelen
    F C Donders Centre for Cognitive Neuroimaging, Radboud University Nijmegen, 6525 EK Nijmegen, Netherlands
    Science 308:111-3. 2005
    ..This coherence may contribute to an effective corticospinal interaction and shortened reaction times...
  28. ncbi Suppression of interference and artifacts by the Signal Space Separation Method
    Samu Taulu
    Elekta Neuromag Oy, Helsinki, Finland
    Brain Topogr 16:269-75. 2004
    ..When used with properly designed sensor array, SSS does not affect the morphology or the signal-to-noise ratio of the interesting signals...
  29. pmc Cognitive fitness of cost-efficient brain functional networks
    Danielle S Bassett
    Genes Cognition and Psychosis Program, Clinical Brain Disorders Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
    Proc Natl Acad Sci U S A 106:11747-52. 2009
    ..We analyzed brain functional networks derived from magnetoencephalography data recorded during working-memory task performance in 29 healthy volunteers and 28 people with ..
  30. pmc Tinnitus perception and distress is related to abnormal spontaneous brain activity as measured by magnetoencephalography
    Nathan Weisz
    Department of Psychology, University of Konstanz, Germany
    PLoS Med 2:e153. 2005
    ..Surprisingly, there have been no group studies comparing abnormalities in ongoing, spontaneous neuronal activity in individuals with and without tinnitus perception...
  31. ncbi Statistical flattening of MEG beamformer images
    Gareth R Barnes
    The Wellcome Trust Laboratory for MEG Studies, Neurosciences Research Institute, Aston University, Birmingham B4 7ET, United Kingdom
    Hum Brain Mapp 18:1-12. 2003
    ..Per-voxel threshold estimates, based on the voxels extent (or cluster size) in flattened space, provide accurate corrected false positive error rates for these highly inhomogeneously smooth images...
  32. pmc Movement-related changes in local and long-range synchronization in Parkinson's disease revealed by simultaneous magnetoencephalography and intracranial recordings
    Vladimir Litvak
    Sobell Department of Motor Neuroscience, UCL Institute of Neurology, London, WC1N 3BG, United Kingdom, Department of Clinical Neurology, University of Oxford, Oxford, OX3 9DU, United Kingdom
    J Neurosci 32:10541-53. 2012
    ..Do they improve movement, and, if so, in what way? We acquired simultaneously magnetoencephalography and direct recordings from the subthalamic nucleus (STN) in 17 PD patients...
  33. pmc Inferring task-related networks using independent component analysis in magnetoencephalography
    H Luckhoo
    Oxford Centre for Human Brain Activity, University of Oxford, Warneford Hospital, Oxford, UK
    Neuroimage 62:530-41. 2012
    A novel framework for analysing task-positive data in magnetoencephalography (MEG) is presented that can identify task-related networks...
  34. ncbi Cognition is related to resting-state small-world network topology: an magnetoencephalographic study
    L Douw
    Department of Neurology, VU University Medical Center, Amsterdam, The Netherlands
    Neuroscience 175:169-77. 2011
    ..Network analysis was performed on resting-state, eyes-closed magnetoencephalography (MEG) data, after determining functional connectivity between each pair of sensors...
  35. pmc Comparison of noise-normalized minimum norm estimates for MEG analysis using multiple resolution metrics
    Olaf Hauk
    Cognition and Brain Sciences Unit, Medical Research Council, Cambridge, UK
    Neuroimage 54:1966-74. 2011
    ..We suggest that software packages for source estimation should include comprehensive tools for evaluating the performance of different methods...
  36. ncbi Words in the brain's language
    F Pulvermuller
    Department of Psychology, University of Konstanz, 78434 Konstanz, Germany
    Behav Brain Sci 22:253-79; discussion 280-336. 1999
    ..Competing large-scale neuronal theories of language are discussed in light of the data summarized. Neurobiological perspectives on the problem of serial order of words in syntactic strings are considered in closing...
  37. pmc Measuring functional connectivity using MEG: methodology and comparison with fcMRI
    Matthew J Brookes
    Sir Peter Mansfield Magnetic Resonance Centre, School of Physics and Astronomy, University of Nottingham, University Park, Nottingham, UK
    Neuroimage 56:1082-104. 2011
    ..In this paper, we investigate resting state FC using fcMRI and magnetoencephalography (MEG). In fcMRI, we exploit the advantages afforded by ultra high magnetic field...
  38. ncbi Changes in brain network activity during working memory tasks: a magnetoencephalography study
    Matthew J Brookes
    Sir Peter Mansfield Magnetic Resonance Centre, School of Physics and Astronomy, University of Nottingham, University Park, Nottingham, UK
    Neuroimage 55:1804-15. 2011
    ..b>Magnetoencephalography (MEG) data were recorded, and subsequently processed using beamformer based source imaging methodology...
  39. ncbi Assessing and improving the spatial accuracy in MEG source localization by depth-weighted minimum-norm estimates
    Fa Hsuan Lin
    MGH MIT HMS Athinoula A Martinos Center for Biomedical Imaging, Building 149 13th St Charlestown, MA 02129, USA
    Neuroimage 31:160-71. 2006
    Cerebral currents responsible for the extra-cranially recorded magnetoencephalography (MEG) data can be estimated by applying a suitable source model...
  40. ncbi Stages of processing in face perception: an MEG study
    Jia Liu
    Department of Brain and Cognitive Sciences, NE20 443, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
    Nat Neurosci 5:910-6. 2002
    Here we used magnetoencephalography (MEG) to investigate stages of processing in face perception in humans...
  41. ncbi Signal processing in magnetoencephalography
    J Vrba
    CTF Systems Inc, A subsidiary of VSM MedTech Ltd, 15-1750 McLean Avenue, British Columbia V3C 1M9, Port Coquitlam, Canada
    Methods 25:249-71. 2001
    The subject of this article is detection of brain magnetic fields, or magnetoencephalography (MEG)...
  42. pmc Five-dimensional neuroimaging: localization of the time-frequency dynamics of cortical activity
    Sarang S Dalal
    Department of Radiology, University of California, San Francisco, CA 94143 0628, USA
    Neuroimage 40:1686-700. 2008
    ..novel adaptive spatial filtering algorithm optimized for robust source time-frequency reconstruction from magnetoencephalography (MEG) and electroencephalography (EEG) data...
  43. ncbi Monte Carlo simulation studies of EEG and MEG localization accuracy
    Arthur K Liu
    Massachusetts General Hospital, NMR Center, Building 149, 13th Street, Charlestown, MA 02129, USA
    Hum Brain Mapp 16:47-62. 2002
    Both electroencephalography (EEG) and magnetoencephalography (MEG) are currently used to localize brain activity...
  44. ncbi Nonlinear dynamical analysis of EEG and MEG: review of an emerging field
    C J Stam
    Department of Clinical Neurophysiology, VU University Medical Centre, P O Box 7057, 1007 MB Amsterdam, The Netherlands
    Clin Neurophysiol 116:2266-301. 2005
    ....
  45. ncbi Spatio-temporal source imaging reveals subcomponents of the human auditory mismatch negativity in the cingulum and right inferior temporal gyrus
    T D Waberski
    Department of Neurology, University Hospital Aachen, Pauwelsstrasse 30, D 52057 Aachen, Germany
    Neurosci Lett 308:107-10. 2001
    ..Evidence for an additional right inferior temporal generator supports the hypothesis of right hemispheric dominance in early sound discrimination...
  46. pmc Denoising based on spatial filtering
    Alain de Cheveigné
    Laboratoire de Psychologie de la Perception, UMR 8158, CNRS and Université Paris Descartes, France
    J Neurosci Methods 171:331-9. 2008
    ..a method for removing unwanted components of biological origin from neurophysiological recordings such as magnetoencephalography (MEG), electroencephalography (EEG), or multichannel electrophysiological or optical recordings...
  47. ncbi A quantitative assessment of the sensitivity of whole-head MEG to activity in the adult human cortex
    A Hillebrand
    The Wellcome Trust Laboratory for MEG Studies, Neurosciences Research Institute, Aston University, Birmingham, United Kingdom
    Neuroimage 16:638-50. 2002
    b>MagnetoEncephaloGraphy (MEG) relies on the detection of cortical current flow by measurement of the associated magnetic field outside the head...
  48. ncbi Neuronal synchronization along the dorsal visual pathway reflects the focus of spatial attention
    Markus Siegel
    Department of Neurophysiology and Pathophysiology, Center of Experimental Medicine, University Medical Center Hamburg Eppendorf, University of Hamburg, Martinistrasse 52, 20246 Hamburg, Germany
    Neuron 60:709-19. 2008
    ..We thus combined magnetoencephalography (MEG) in a spatially cued motion discrimination task with source-reconstruction techniques and ..
  49. pmc Phase patterns of neuronal responses reliably discriminate speech in human auditory cortex
    Huan Luo
    Neuroscience and Cognitive Science Program, Department of Biology, University of Maryland College Park, College Park, MD 20742, USA
    Neuron 54:1001-10. 2007
    ..we show that the phase pattern of theta band (4-8 Hz) responses recorded from human auditory cortex with magnetoencephalography (MEG) reliably tracks and discriminates spoken sentences and that this discrimination ability is ..
  50. pmc Measuring functional connectivity in MEG: a multivariate approach insensitive to linear source leakage
    M J Brookes
    Sir Peter Mansfield Magnetic Resonance Centre, School of Physics and Astronomy, University of Nottingham, University Park, Nottingham, UK
    Neuroimage 63:910-20. 2012
    A number of recent studies have begun to show the promise of magnetoencephalography (MEG) as a means to non-invasively measure functional connectivity within distributed networks in the human brain...
  51. ncbi Predictive top-down integration of prior knowledge during speech perception
    Ediz Sohoglu
    Medical Research Council Cognition and Brain Sciences Unit, Cambridge CB2 7EF, United Kingdom
    J Neurosci 32:8443-53. 2012
    ..We argue that these data are best explained within the framework of predictive coding in which sensory activity is compared with top-down predictions and only unexplained activity propagated through the cortical hierarchy...
  52. pmc Frequency-dependent functional connectivity within resting-state networks: an atlas-based MEG beamformer solution
    Arjan Hillebrand
    Department of Clinical Neurophysiology and Magnetoencephalography Center, VU University Medical Center, Amsterdam, The Netherlands
    Neuroimage 59:3909-21. 2012
    ..b>Magnetoencephalography (MEG) has the temporal resolution to capture these frequency-dependent interactions, although, due to ..
  53. pmc Mapping cortical hubs in tinnitus
    Winfried Schlee
    Department of Psychology, University of Konstanz, Germany
    BMC Biol 7:80. 2009
    ..Accompanying this hyperactivity, changes in non-auditory brain structures have also been reported. However, there have been no studies on the long-range information flow between these regions...
  54. ncbi A new approach to neuroimaging with magnetoencephalography
    Arjan Hillebrand
    Wellcome Trust Laboratory for MEG Studies, Neurosciences Research Institute, Aston University, Birmingham, United Kingdom
    Hum Brain Mapp 25:199-211. 2005
    We discuss the application of beamforming techniques to the field of magnetoencephalography (MEG)...
  55. ncbi The mismatch negativity in cognitive and clinical neuroscience: theoretical and methodological considerations
    Teija Kujala
    Helsinki Collegium for Advanced Studies, University of Helsinki, FIN 00014 Helsinki, Finland
    Biol Psychol 74:1-19. 2007
    ..Thereafter, issues which need to be taken into account in MMN investigations as well as new improved recording paradigms are discussed...
  56. pmc EEG and MEG coherence: measures of functional connectivity at distinct spatial scales of neocortical dynamics
    Ramesh Srinivasan
    Department of Cognitive Sciences, University of California, Irvine, CA 92697 5100, United States
    J Neurosci Methods 166:41-52. 2007
    ..However, MEG coherence estimates reflect fewer sources at a smaller scale than EEG coherence and may only partially overlap EEG coherence. EEG, Laplacian, and MEG coherence emphasize different spatial scales and orientations of sources...
  57. ncbi Timbre-specific enhancement of auditory cortical representations in musicians
    C Pantev
    Biomagnetism Center, Institute for Experimental Audiology, , Germany
    Neuroreport 12:169-74. 2001
    ..Timbre specificity is predicted by a principle of use-dependent plasticity and imposes new requirements on nativistic accounts of brain attributes associated with musical skill...
  58. pmc The role of oscillations and synchrony in cortical networks and their putative relevance for the pathophysiology of schizophrenia
    Peter J Uhlhaas
    Department of Neurophysiology, Max Planck Institute for Brain Research, Frankfurt am Main, Germany
    Schizophr Bull 34:927-43. 2008
    ..Perspectives for future research will be discussed in relationship to methodological issues, the utility of neural oscillations as a biomarker, and the neurodevelopmental hypothesis of schizophrenia...
  59. ncbi Dynamic causal modeling for EEG and MEG
    Stefan J Kiebel
    The Wellcome Trust Centre for Neuroimaging, University College London, 12 Queen Square, London, United Kingdom
    Hum Brain Mapp 30:1866-76. 2009
    ..We suggest that DCM and Bayesian model comparison provides a useful way to test hypotheses about distributed processing in the brain, using electromagnetic data...
  60. ncbi Cortical plasticity induced by short-term unimodal and multimodal musical training
    Claudia Lappe
    Institute for Biomagnetism and Biosignalanalysis, University of Munster, 48149 Munster, Germany
    J Neurosci 28:9632-9. 2008
    ....
  61. ncbi On the human sensorimotor-cortex beta rhythm: sources and modeling
    O Jensen
    Brain Research Unit, Low Temperature Laboratory, Helsinki University of Technology, Finland
    Neuroimage 26:347-55. 2005
    ..we administered benzodiazepines to healthy adults and monitored cortical oscillatory activity by means of magnetoencephalography. Benzodiazepine increased the power and decreased the frequency of beta oscillations over rolandic areas...
  62. ncbi Transfer entropy in magnetoencephalographic data: quantifying information flow in cortical and cerebellar networks
    Michael Wibral
    Goethe University, Brain Imaging Center, MEG Unit, Heinrich Hoffmann Strasse 10, 60528 Frankfurt, Germany
    Prog Biophys Mol Biol 105:80-97. 2011
    ..Exploratory tools for the identification of nodes are available, e.g. magnetoencephalography (MEG) in combination with beamformer source analysis...
  63. ncbi Rapid and highly resolving: affective evaluation of olfactorily conditioned faces
    Christian Steinberg
    University of Munster, Munster, Germany
    J Cogn Neurosci 24:17-27. 2012
    ..In the absence of contingency awareness and with only two learning instances, a remarkable capacity for emotional learning is observed...
  64. ncbi The role of GABAergic modulation in motor function related neuronal network activity
    S D Hall
    Aston Brain Centre, School of Life and Health Sciences, Aston University, Birmingham, UK
    Neuroimage 56:1506-10. 2011
    ..To address this, we used magnetoencephalography (MEG) to study the movement related oscillatory changes in M1 cortex of eight healthy participants, ..
  65. ncbi Reconstructing spatio-temporal activities of neural sources using an MEG vector beamformer technique
    K Sekihara
    Department of Electronic Systems and Engineering, Tokyo Metropolitan Institute of Technology, Hino, Japan
    IEEE Trans Biomed Eng 48:760-71. 2001
    ..We also applied the proposed beamformer to two sets of auditory-evoked MEG data, and the results clearly demonstrated the method's capability of reconstructing spatio-temporal activities of neural sources...
  66. pmc Neuromagnetic indicators of tinnitus and tinnitus masking in patients with and without hearing loss
    Peyman Adjamian
    MRC Institute of Hearing Research, University Park, Nottingham, UK NG7 2RD
    J Assoc Res Otolaryngol 13:715-31. 2012
    ..b>Magnetoencephalography was used to measure oscillatory brain activity within different frequency bands in a 'resting' state and ..
  67. ncbi Cognitive effort drives workspace configuration of human brain functional networks
    Manfred G Kitzbichler
    Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge CB2 0SZ, United Kingdom
    J Neurosci 31:8259-70. 2011
    ....
  68. ncbi Resting oscillatory cortico-subthalamic connectivity in patients with Parkinson's disease
    Vladimir Litvak
    Sobell Department of Motor Neuroscience, UCL Institute of Neurology, London, UK
    Brain 134:359-74. 2011
    ..The cortical topography and frequencies involved in the alpha and beta networks suggest that these networks may be involved in attentional and executive, particularly motor planning, processes, respectively...
  69. ncbi Magnetoencephalography: From SQUIDs to neuroscience. Neuroimage 20th anniversary special edition
    Riitta Hari
    Brain Research Unit, O V Lounasmaa Laboratory, Aalto University School of Science, Espoo, Finland
    Neuroimage 61:386-96. 2012
    b>Magnetoencephalography (MEG), with its direct view to the cortex through the magnetically transparent skull, has developed from its conception in physics laboratories to a powerful tool of basic and clinical neuroscience...
  70. ncbi Towards source volume estimation of interictal spikes in focal epilepsy using magnetoencephalography
    Romain Bouet
    Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292, Brain Dynamics and Cognition Team, Lyon F 69000, France
    Neuroimage 59:3955-66. 2012
    ..Delineating the SV precisely is a challenge during the presurgical evaluation of patients with epilepsy. Magnetoencephalography (MEG) recordings enable determination of the brain sources of epileptic spikes using source localization ..
  71. ncbi Top-down controlled alpha band activity in somatosensory areas determines behavioral performance in a discrimination task
    Saskia Haegens
    Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, 6500 HB Nijmegen, The Netherlands
    J Neurosci 31:5197-204. 2011
    ..state of the sensory system adjusted to up- or downregulate processing according to anticipation? We used magnetoencephalography to investigate whether prestimulus alpha band activity (8-14 Hz) reflects allocation of attentional ..
  72. ncbi Use of magnetoencephalography (MEG) to study functional brain networks in neurodegenerative disorders
    C J Stam
    Department of Clinical Neurophysiology, VU University Medical Center, Amsterdam, The Netherlands
    J Neurol Sci 289:128-34. 2010
    ..b>Magnetoencephalography (MEG) is a relatively new functional neuroimaging technique, which allows the simultaneous recording of ..
  73. pmc Mapping functional connectivity in patients with brain lesions
    Adrian G Guggisberg
    Biomagnetic Imaging Lab, Department of Radiology, University of California San Francisco, San Francisco, CA 94143 0628, USA
    Ann Neurol 63:193-203. 2008
    ..Based on the rationale that damaged brain tissue is disconnected from the physiological interactions among healthy areas, this study aimed to map the functionality of brain areas according to their connectivity with other areas...
  74. pmc Hippocampus-dependent and -independent theta-networks of active maintenance
    Nathan Cashdollar
    University College London Institute of Neurology and National Hospital for Neurology and Neurosurgery, Queen Square, London WC1N 3BG, United Kingdom
    Proc Natl Acad Sci U S A 106:20493-8. 2009
    ..Using magnetoencephalography in healthy adults and patients with bilateral hippocampal sclerosis, we distinguish this hippocampus-..
  75. ncbi Detection and localization of hippocampal activity using beamformers with MEG: a detailed investigation using simulations and empirical data
    Maher A Quraan
    Neurosciences and Mental Health, The Hospital for Sick Children, Toronto, Ontario, Canada
    Hum Brain Mapp 32:812-27. 2011
    The ability to detect neuronal activity emanating from deep brain structures such as the hippocampus using magnetoencephalography has been debated in the literature...
  76. ncbi MEG beamforming using Bayesian PCA for adaptive data covariance matrix regularization
    Mark Woolrich
    OHBA Oxford Centre for Human Brain Activity, University of Oxford, Oxford, UK
    Neuroimage 57:1466-79. 2011
    Beamformers are a commonly used method for doing source localization from magnetoencephalography (MEG) data. A key ingredient in a beamformer is the estimation of the data covariance matrix...
  77. ncbi Estimating true brain connectivity from EEG/MEG data invariant to linear and static transformations in sensor space
    Arne Ewald
    Fraunhofer FIRST, Intelligent Data Analysis Group, Berlin, Germany
    Neuroimage 60:476-88. 2012
    ..We found that MEG was capable of observing brain interactions which were not observable in the EEG data...
  78. ncbi Prestimulus oscillations enhance psychophysical performance in humans
    Klaus Linkenkaer-Hansen
    BioMag Laboratory, Engineering Centre, Helsinki University Central Hospital, Helsinki FIN 00029 HUS, Finland
    J Neurosci 24:10186-90. 2004
    ..Furthermore, the results suggest that ongoing oscillations in sensory cortices may optimize the processing of sensory stimuli with the same mechanism as noise sources in intrinsic stochastic resonance...
  79. pmc Adaptive reconfiguration of fractal small-world human brain functional networks
    Danielle S Bassett
    Brain Mapping Unit, Department of Psychiatry, University of Cambridge, Addenbrooke s Hospital, Cambridge CB2 2QQ, United Kingdom
    Proc Natl Acad Sci U S A 103:19518-23. 2006
    ..Human brain functional networks demonstrate a fractal small-world architecture that supports critical dynamics and task-related spatial reconfiguration while preserving global topological parameters...
  80. ncbi Reconstruction of two-dimensional movement trajectories from selected magnetoencephalography cortical currents by combined sparse Bayesian methods
    Akihiro Toda
    Computational Neuroscience Laboratories, Advanced Telecommunications Research Institute International, Keihanna Science City, Kyoto, Japan
    Neuroimage 54:892-905. 2011
    ..However, electroencephalography (EEG) or magnetoencephalography (MEG) inevitably records a mixture of signals originating from many cortical regions, and thus it is not ..
  81. ncbi Cortical dynamics of the visual change detection process
    Tomokazu Urakawa
    Department of Integrative Physiology, National Institute for Physiological Sciences, Okazaki, Japan
    Psychophysiology 47:905-12. 2010
    ..90%, respectively, in one session and vice versa for the other one, and we traced brain responses using magnetoencephalography. Results show that activation in the middle occipital gyrus (MOG) was significantly enhanced for the ..
  82. pmc Localization bias and spatial resolution of adaptive and non-adaptive spatial filters for MEG source reconstruction
    Kensuke Sekihara
    Department of Electronic Systems and Engineering, Tokyo Metropolitan Institute of Technology, Asahigaoka 6 6, Hino, Tokyo 191 0065, Japan
    Neuroimage 25:1056-67. 2005
    ..The results of these analyses are validated by numerical experiments as well as by reconstructions based on two sets of evoked magnetic responses...
  83. pmc Spatiotemporal dynamics of modality-specific and supramodal word processing
    Ksenija Marinkovic
    Athinoula A Martinos Center for Biomedical Imaging, Charlestown, MA 02129, USA
    Neuron 38:487-97. 2003
    ..Using anatomically constrained magnetoencephalography (aMEG), the present study investigated the stages of word comprehension in real time in the auditory and ..
  84. ncbi A neural mass model for MEG/EEG: coupling and neuronal dynamics
    Olivier David
    Wellcome Department of Imaging Neuroscience, Functional Imaging Laboratory, 12 Queen Square, London WC1N 3BG, UK
    Neuroimage 20:1743-55. 2003
    ....
  85. pmc Clinical symptoms and alpha band resting-state functional connectivity imaging in patients with schizophrenia: implications for novel approaches to treatment
    Leighton B N Hinkley
    Department of Radiology and Biomedical Imaging, University of California, San Francisco, California 94143, USA
    Biol Psychiatry 70:1134-42. 2011
    ..The goal of this study was to use magnetoencephalography (MEG) to identify brain regions that exhibit abnormal resting-state connectivity in the alpha frequency ..
  86. pmc Coherent neural representation of hand speed in humans revealed by MEG imaging
    Karim Jerbi
    Cognitive Neuroscience and Brain Imaging Laboratory, Centre National de la Recherche Scientifique, UPR 640 LENA, MEG Center, Universite Pierre et Marie Curie Paris 6, Hopital de la Salpetriere, 75013 Paris, France
    Proc Natl Acad Sci U S A 104:7676-81. 2007
    ..Here, we applied magnetoencephalography (MEG) source imaging to the ongoing brain activity in subjects performing a continuous visuomotor (VM) ..
  87. ncbi Post-movement beta rebound is generated in motor cortex: evidence from neuromagnetic recordings
    Michael T Jurkiewicz
    Neuromagnetic Imaging Laboratory, The Hospital for Sick Children Research Institute, Toronto, Ontario, Canada
    Neuroimage 32:1281-9. 2006
    ....
  88. ncbi Reproducibility of graph metrics of human brain functional networks
    Lorena Deuker
    Department of Psychology, University of Constance, Constance, Germany
    Neuroimage 47:1460-8. 2009
    ..Here we investigated the test-retest reliability of graph metrics of functional networks derived from magnetoencephalography (MEG) data recorded in two sessions from 16 healthy volunteers who were studied at rest and during ..
  89. ncbi Performance of an MEG adaptive-beamformer technique in the presence of correlated neural activities: effects on signal intensity and time-course estimates
    Kensuke Sekihara
    Department of Electronic Systems and Engineering, Tokyo Metropolitan Institute of Technology, Tokyo 191 0065, Japan
    IEEE Trans Biomed Eng 49:1534-46. 2002
    ..Our numerical experiments demonstrated that reasonably accurate time courses can be retrieved from considerably distorted time courses even when the signal-to-noise ratio is low...
  90. ncbi Realistic spatial sampling for MEG beamformer images
    Gareth R Barnes
    Neurosciences Research Institute, Aston University, Birmingham, United Kingdom
    Hum Brain Mapp 23:120-7. 2004
    The spatial resolution achievable using magnetoencephalography (MEG) beamformer techniques is inhomogeneous across the brain and is related directly to the amplitude of the underlying electrical sources [Barnes and Hillebrand, Hum Brain ..
  91. pmc Neural dynamics for facial threat processing as revealed by gamma band synchronization using MEG
    Qian Luo
    Mood and Anxiety Disorders Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892 2670, USA
    Neuroimage 34:839-47. 2007
    ..By utilizing magnetoencephalography (MEG), a brain-imaging technique with superb temporal resolution and fairly good spatial resolution, ..
  92. ncbi The cerebral oscillatory network of parkinsonian resting tremor
    Lars Timmermann
    Department of Neurology, Heinrich Heine University, Duesseldorf, Germany
    Brain 126:199-212. 2003
    ..simultaneously surface electromyograms (EMGs) of hand muscles, and brain activity with a whole-head magnetoencephalography (MEG) system...
  93. ncbi Keep it simple: a case for using classical minimum norm estimation in the analysis of EEG and MEG data
    Olaf Hauk
    Cognition and Brain Sciences Unit, Medical Research Council, Cambridge, UK
    Neuroimage 21:1612-21. 2004
    ..g., single-trial data) are analyzed. For that purpose, an efficient and practical implementation of this method will be suggested and illustrated with simulations using a realistic head geometry...
  94. ncbi Visual gamma oscillations and evoked responses: variability, repeatability and structural MRI correlates
    Suresh D Muthukumaraswamy
    CUBRIC, School of Psychology, Park Place, Cardiff University, Cardiff, CF10 3AT, UK
    Neuroimage 49:3349-57. 2010
    ..Our results also demonstrate that gamma frequency tends to decline with age and is positively correlated with the thickness of the pericalcarine cortex...
  95. ncbi Localizing human visual gamma-band activity in frequency, time and space
    Nienke Hoogenboom
    F C Donders Centre for Cognitive Neuroimaging, Radboud University Nijmegen, 6525 EN Nijmegen, The Netherlands
    Neuroimage 29:764-73. 2006
    ..The results localize human visual gamma-band activity in frequency, time and space and the described methods allow its further investigation with great sensitivity...
  96. ncbi Statistical control of artifacts in dense array EEG/MEG studies
    M Junghofer
    Department of Psychology, University of Konstanz, Germany
    Psychophysiology 37:523-32. 2000
    With the advent of dense sensor arrays (64-256 channels) in electroencephalography and magnetoencephalography studies, the probability increases that some recording channels are contaminated by artifact...
  97. pmc Robust Bayesian estimation of the location, orientation, and time course of multiple correlated neural sources using MEG
    David P Wipf
    Department of Radiology and Biomedical Imaging, University of California San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143, USA
    Neuroimage 49:641-55. 2010
    ..Empirical results on both simulated and real data sets verify the efficacy of this approach...
  98. ncbi Disturbed functional connectivity in brain tumour patients: evaluation by graph analysis of synchronization matrices
    Fabrice Bartolomei
    Department of Clinical Neurophysiology, VU University Medical Center, Amsterdam, The Netherlands
    Clin Neurophysiol 117:2039-49. 2006
    ..The present work aims at evaluating the impact of brain tumours on spatial patterns of functional connectivity of the brain measured at rest by MEG...
  99. ncbi N400-like magnetoencephalography responses modulated by semantic context, word frequency, and lexical class in sentences
    Eric Halgren
    MGH NMR Center, Harvard Medical School, Boston, Massachusetts, USA
    Neuroimage 17:1101-16. 2002
    ..The current study used whole-head magnetoencephalography (MEG) as male subjects read sentences ending with semantically congruous or incongruous words...
  100. ncbi Spatiotemporal mapping of brain activity by integration of multiple imaging modalities
    A M Dale
    Massachusetts General Hospital Nuclear Magnetic Resonance Center, 149 13th Street, Charlestown, MA 02129, USA
    Curr Opin Neurobiol 11:202-8. 2001
    ..Conversely, electroencephalography (EEG) and magnetoencephalography (MEG) measure instantaneously the current flows induced by synaptic activity, but the accurate ..
  101. pmc Optimized beamforming for simultaneous MEG and intracranial local field potential recordings in deep brain stimulation patients
    Vladimir Litvak
    UCL Institute of Neurology, Queen Square, WC1N 3BG, London, UK
    Neuroimage 50:1578-88. 2010
    ..Our findings demonstrate that physiologically meaningful information can be extracted from heavily contaminated MEG signals and pave the way for further analysis of combined MEG-LFP recordings in DBS patients...

Research Grants77

  1. A Magnetoencephalography Study: Saccadic Eye Movement Effects on Word Processing
    SIMONA TEMEREANCA IBANESCU; Fiscal Year: 2007
    ..as words are processed following saccades, using a multimodal imaging approach that combines whole-head magnetoencephalography (MEG), electroencephalography (EEG), anatomical magnetic resonance imaging (MRI), and psychophysical ..
  2. Utah Center for Exploring Mind-Body Interactions (UCEMB*
    Yoshio Nakamura; Fiscal Year: 2006
    ..on somatic awareness and its relationship to mind-body interactions in three specific areas: a) the use of magnetoencephalography to document alterations in somatic awareness in mind-body interactions, b) combined use of both "dry" and "..
  3. Magnetoencephalogrpahy with an atomic magnetometer
    Michael Romalis; Fiscal Year: 2005
    ..field sensor for imaging of the magnetic fields produced by the brain and demonstrate its performance in magnetoencephalography (MEG) studies of human volunteers...
  4. EVALUATION OF MEG AS A CURRENT SOURCE IMAGING TECHNIQUE
    Yoshio Okada; Fiscal Year: 2004
    ..Our research strongly indicates that the advantage of Magnetoencephalography (MEG) over Electroencephalography (EEG) should be clearest in an area that has thus far received little ..
  5. HPLC-ICP-MS System
    PETER D CARAVAN; Fiscal Year: 2013
    ..techniques such as magnetic resonance imaging (MRI), positron emission tomography, optical imaging, and magnetoencephalography. Accurate elemental analysis underpins much of this work...
  6. Cocktail Party Problem: Perspective on Neurobiology of Auditory Scene Analysis
    Mounya Elhilali; Fiscal Year: 2013
    ..testing in humans: The objective is to directly test predictions from the model in human subjects, using magnetoencephalography (MEG) and psychoacoustic experiments...
  7. A Follow-up of Children Enrolled in the Management of Myelomeningocele Study
    ELIZABETH ANN THOM; Fiscal Year: 2013
    ..b>Magnetoencephalography (MEG) will be performed to localize areas of cortical activation and to perform functional mapping (..
  8. A Cognitive Neuroscience Framework for Understanding and Treating Mood Disorders
    Moshe Bar; Fiscal Year: 2012
    ..imaging approach, capitalizing on the complementary strengths of psychophysical paradigms, fMRI and magnetoencephalography, to achieve the following specific aims: In Aim 1 we will test all relevant aspects of the relationship ..
  9. CRCNS: Multiresolution Modeling of Human Thalamocortical Upstates and Downstates
    Eric Halgren; Fiscal Year: 2013
    ..microelectrode data to mesoscopic recordings (ECOG- electrocorticography) and non-invasive measures (MEG- magnetoencephalography and EEG)...
  10. Design Optimization of Combined Magnetoencephalography and Susceptometry
    Solomon Gilbert Diamond; Fiscal Year: 2013
    ..EEG) and to a lesser degree on combined near-infrared spectroscopy (NIRS) and EEG or magnetoencephalography (MEG). There are however some fundamental limitations to existing multimodal neuroimaging approaches...
  11. Imaging the Development of Memory Strategies in Aging
    Cheryl J Aine; Fiscal Year: 2012
    ..We propose to use magnetoencephalography or MEG to examine visual episodic memory function with and without distracters, along with diffusion ..
  12. Global cortical dynamics in sleep and general anesthesia
    Eran A Mukamel; Fiscal Year: 2013
    ..In humans, electro- and magnetoencephalography (EEG, MEG) and intracranial electrocorticography (ECoG) probe neural dynamics with ms-scale resolution, ..
  13. High frequency activity in infants with epilepsy
    JULIA MARIE STEPHEN; Fiscal Year: 2010
    ..Unfortunately, this FR from the mesial temporal lobe does not appear to be detectable over the scalp with magnetoencephalography (MEG) or electroencephalography (EEG) according to the intracranial data of Gotman and his coworkers from ..
  14. Merging Diffuse Optical Tomography with EEG, MEG and MRI for Neurovascular Exams
    Solomon Gilbert Diamond; Fiscal Year: 2010
    ..DOT is compatible with electroencephalography (EEG) and magnetoencephalography (MEG), which respectively measure electrical potential and magnetic fields from neural currents...
  15. Binocular Approaches to Perceptual Learning in Adult Amblyopia
    CRISTINA LLERENA LAW; Fiscal Year: 2013
    ..The proposed work will make use of magnetoencephalography (MEG) both to measure responses from the amblyopic eye, and for the first time, to measure binocular ..
  16. Clinical and neurophysiological study of subthalamic brain stimulation in PD
    HARRISON CARROLL WALKER; Fiscal Year: 2013
    ..3) Unilateral STN DBS in PD alters activity in the ipsilateral premotor cortex. Magnetoencephalography (MEG) will measure the kinetics and localization of cortical magnetic fields evoked by high and low ..
  17. The Neuroscience of Motivational Interviewing Change Talk
    CLAUDIA DENKE TESCHE; Fiscal Year: 2010
    ..Capitalizing upon the excellent spatiotemporal resolution of magnetoencephalography (MEG) to explore these processes, we will explore the neural substrate of client change language by ..
  18. Preterm Infants'Mu-rhythm Suppression Evaluation Study (PrIMES)
    JULIA MARIE STEPHEN; Fiscal Year: 2013
    ..This project will use simultaneous magnetoencephalography (MEG) and electroencephalography (EEG), to monitor spontaneous mu rhythm activity and mu rhythm ..
  19. Development of Analysis Tools to Enhance Fetal Neurological Assessment
    Hari Eswaran; Fiscal Year: 2013
    ..by applicant): At University of Arkansas for Medical Sciences we have installed the world's first magnetoencephalography (MEG) system specifically designed and modified for fetal and newborn assessment...
  20. Brain and Behavioral Impairment in Alcohol Dependence and Schizophrenia
    Robert Thoma; Fiscal Year: 2010
    ..1) statistics/design methodology;(2) alcohol clinical research methods;(3) functional neuroimaging (magnetoencephalography, MEG;electroencephalography, EEG), and (4) scientific writing and research development...
  21. Neurodevelopmental MEG
    Ronald T Wakai; Fiscal Year: 2010
    ..provided by applicant): The long-term goal of this research program is to demonstrate the efficacy of magnetoencephalography (MEG) as a new technology for the study of neonatal brain activity...
  22. Neural synchronydysfunction of gamma oscillations in autism
    Donald C Rojas; Fiscal Year: 2013
    ..Gamma band oscillatory activity, as measured using EEG and magnetoencephalography (MEG), has been associated with intrinsic GABAergic activity in animal and computational models of the ..
  23. A Cryogen-Free, Low-Cost Atomic Magnetometer Array for Magnetoencephalography
    Peter Schwindt; Fiscal Year: 2013
    ..b>Magnetoencephalography (MEG) is the only noninvasive functional neuroimaging technique able to directly measure neural activity ..
  24. Sensorimotor abnormalities in childhood onset psychotic disorders
    Donald C Rojas; Fiscal Year: 2013
    ..We will employ a combination of neurobehavioral methods with non-invasive neuroimaging using magnetoencephalography (MEG) and structural magnetic resonance imaging (MRI)...
  25. Development of Hardware and Software for Clinical MEG
    Norman Tepley; Fiscal Year: 2010
    ..by applicant): The overarching goal of this proposal is to use evidence-based methodology to evaluate Magnetoencephalography (MEG) as a clinical tool for evaluation and planning of surgical treatment for patients with epilepsy...
  26. Tools for Large-Scale Platform-Independent MEG Data Analysis
    Richard M Leahy; Fiscal Year: 2013
    DESCRIPTION (provided by applicant): Magnetoencephalography (MEG) and electroencephalography (EEG) provide a unique window to the large scale spatiotemporal neural processes that underlie human brain function...
  27. Phonetic influences on auditory feedback control
    Caroline Niziolek; Fiscal Year: 2013
    ..Our project combines psychophysical and magnetoencephalography experiments to investigate the neural dynamics elicited by a sudden modification of speakers'auditory ..
  28. Sequence and Location of Cortical Activity When Infants Understand Words
    Eric Halgren; Fiscal Year: 2012
    ..In contrast, magnetoencephalography (MEG) is silent and well tolerated by infants...
  29. Cortical Dynamics of Episodic Memory Processing in Tempora Lobe Epilepsy
    Carrie R McDonald; Fiscal Year: 2010
    ..of episodic memory processing in patients with temporal lobe epilepsy (TLE) by combining whole-head magnetoencephalography (MEG) and electroencephalography (EEG) with high-resolution structural MRI...
  30. Noninvasive imaging-based electrophysiology using microelectronic devices
    Alan Jasanoff; Fiscal Year: 2013
    ..Magnetic fields of this order are greater than endogenous neuronal fields detected in tech- nologies like magnetoencephalography, and have been shown previously to be measurable by MRI in some contexts...
  31. Multimodal Imaging of Language in the Preoperative Evaluation of Epilepsy
    Carrie R McDonald; Fiscal Year: 2013
    ..This research will be accomplished by combining magnetoencephalography (MEG), functional magnetic resonance imaging (fMRI), and diffusion tensor imaging (DTI) with high-..
  32. The Neural Basis of Perceptually-Relevant Auditory Modulations in Humans
    Jonathan Z Simon; Fiscal Year: 2012
    ..b>Magnetoencephalography (MEG) is a non-invasive tool, suitable for use in humans that records high-speed neural signals from the ..
  33. TRAINING PROGRAM IN COGNITIVE NEUROSCIENCE
    Terrence J Sejnowski; Fiscal Year: 2013
    ..Training will be provided in a wide range of techniques including electrophysiology, magnetoencephalography, functional magnetic resonance imaging and computational modeling...
  34. Auditory Processing Training: A Novel Treatment for Sound Hypersensitivities in A
    Jeffrey D Lewine; Fiscal Year: 2012
    ..parent questionnaires and objective behavioral, audiological, and functional brain imaging tests [magnetoencephalography and electroencephalography] will be used to explore the impact of APT on auditory processing and autistic ..
  35. Validating Electrophysiological Endophenotypes as Tranlational Biomarkers of Auti
    Michael Gandal; Fiscal Year: 2011
    ..of electrophysiological biomarkers of impaired receptive language functioning in autistic children using magnetoencephalography. This proposal seeks to translate these clinical findings of impaired auditory-evoked potentials (AEP) to ..
  36. Dynamic imaging of oscillatory brain networks controlling selective attention
    Jyrki Ahveninen; Fiscal Year: 2013
    ..Previous functional magnetic resonance imaging (fMRI), electroencephalography (EEG), and magnetoencephalography (MEG) studies have produced valuable information about spatial vs. temporal vs...
  37. Multimodal Neuroimaging of Prosody in Schizophrenia and Developmental Disorders
    David I Leitman; Fiscal Year: 2013
    ..First, magnetoencephalography (MEG) in conjunction with magnetic resonance functional connectivity analysis (fMRI) will be used to ..
  38. Motor Planning in Children with Cerebral Palsy
    MAX KURZ; Fiscal Year: 2013
    ..To meet this goal, we have implemented an innovative approach that that uses magnetoencephalography (MEG) neuroimaging methods and neurobehavioral methods to identify the neural processes that serve motor ..
  39. Auditory Cortex Structure and Function in Schizophrenia
    JAMES CHRISTOPHER EDGAR; Fiscal Year: 2013
    ..study, using novel tasks developed for this K08 project, functional measures (electroencephalography and magnetoencephalography) of auditory activity throughout the brain will be obtained with 50 controls and 50 patients...
  40. Motor cortex dysfunction in migraine
    Jing Xiang; Fiscal Year: 2011
    ..To measure these functional, cortical abnormalities in the brain, magnetoencephalography (MEG) may be used to detect and localize functional brain activation with high spatial and temporal ..
  41. ELECTROPHYSIOLOGICAL STUDIES OF HUMAN ATTENTION
    ERIC CLAUDE LEUTHARDT; Fiscal Year: 2013
    ..resolution of methods for recording extracranial electro-magnetic activity (electroencephalography, EEG, magnetoencephalography, MEG)...
  42. Perceptual Learning and Sleep
    Takeo Watanabe; Fiscal Year: 2013
    ..sleep;we will use a cutting-edge neuroimaging technique that combines fine temporal information from magnetoencephalography (MEG) and electroencephalography (EEG) with fine spatial information from magnetic resonance imaging (MRI) ..
  43. Multi-modal Neuroimaging Training Program
    Peter J Gianaros; Fiscal Year: 2013
    ..modeling, and applications of MR!, diffusion tensor imaging, functional MRI, positron emission tomography, magnetoencephalography, electroencephalography, functional near-infrared spectroscopy, and optical imaging...
  44. Multi-modal Neuroimaging Training Program
    Peter J Gianaros; Fiscal Year: 2013
    ..modeling, and applications of MRI, diffusion tensor imaging, functional MRI, positron emission tomography, magnetoencephalography, electroencephalography, functional near-infrared spectroscopy, and optical imaging...
  45. Diagnosing Mild TBI in VA and Active Duty Military Patients using MEG and DTI
    Mingxiong Huang; Fiscal Year: 2013
    ..The proposed study will use integrated multi-modality neuroimaging approach involving Magnetoencephalography (MEG) and diffusion tensor imaging (DTI) in diagnosing and monitoring mild TBI...
  46. Neural systems for word recognition in space and time
    William W Graves; Fiscal Year: 2011
    ..the applicant's existing expertise in functional magnetic resonance imaging (fMRI) with new skills in magnetoencephalography (MEG)...
  47. Spatiotemporal Mapping of Neuronal Responses to Acupunture with MEG
    Rupali P Dhond; Fiscal Year: 2012
    ..of neural activity supporting acupuncture stimulation in humans through the use of anatomically contrained magnetoencephalography (MEG)...
  48. Real time cortical connectivity imaging from EEG/MEG data
    Felix Darvas; Fiscal Year: 2010
    Neurofeedback by means of non-invasive surface Electroencephalography (EEC) or Magnetoencephalography (MEG) of the human brain provides an important mechanism for control of brain- computer-interfaces (BCI) or potential treatment for ..
  49. Cortical mechanisms in speech perception: MEG studies
    DAVID E POEPPEL; Fiscal Year: 2012
    ..The principal method used in this research program is magnetoencephalography (MEG), typically with parallel behavioral studies performed...
  50. Cortico-Hippocampal Interactions During Memory Retrieval
    Shannon Tubridy; Fiscal Year: 2013
    ..This proposal uses a combination of the temporal specificity afforded by magnetoencephalography (MEG) and the spatial precision of functional magnetic resonance imaging (fMRI) to ask whether hippocampal ..
  51. Structure and Functional Imaging of Age-Related Changes in Working Memory
    LINDA KATHLEEN MCEVOY; Fiscal Year: 2011
    ..To test this hypothesis, high temporal resolution methods of electro- and magnetoencephalography (EEC and MEG) will be integrated with the high spatial resolution method of functional magnetic resonance ..
  52. Intrinsic Cortical Networks and Cognitive Dysfunction in Parkinson???s Disease
    Benzi M Kluger; Fiscal Year: 2013
    ..Specific Aims: 1) Determine whether graph theory measures of functional cortical activity measured with magnetoencephalography (MEG) are associated with cognitive dysfunction in PD subjects with and without mild cognitive impairment (..
  53. Adjustable Helmet Array for Neonatal Magnetoencephalography
    VISHAL K SHAH; Fiscal Year: 2012
    ..We expect that successful execution of this project will stimulate research in neonatal and infant MEG and encourage many more researchers and clinicians to adopt MEG technology. ..
  54. The Neurophysiological Dynamics of Lexical and Sub-Lexical Representations
    MATTHEW KANTER LEONARD; Fiscal Year: 2013
    ..ECoG) in epilepsy patients implanted with chronic subdural electrodes, and non-invasive magnetoencephalography (MEG), which provides whole-brain coverage of neural activity...
  55. High Resolution Scanning Magnetometry
    Yoshio Okada; Fiscal Year: 2011
    ..In the case of human head, magnetoencephalography (MEG) measures only the currents tangential, but not radial, to the brain-air boundary...
  56. Timing and neural bases of complex word recognition: electrophysiological studies
    ROBERT D FIORENTINO; Fiscal Year: 2011
    ..This project involves recording brain activity using high temporal resolution magnetoencephalography (MEG) during complex word processing, allowing real-time measurement of the stages of word recognition and ..
  57. Magnetoencephalographic detection of high-frequency activity in epilepsy patients
    Manu Hegde; Fiscal Year: 2011
    ..We will use invasive (electrocorticography) and noninvasive (magnetoencephalography) techniques to identify this activity, and determine if its presence and location impacts the success of ..
  58. SPATIOTEMPORAL IMAGING OF HUMAN VISUAL SYSTEM PROCESSING
    John W Belliveau; Fiscal Year: 2013
    ..To these ends we have developed novel methods combining functional MRI (fMRI) and magnetoencephalography / electroencephalography (MEG/EEG) data to obtain noninvasive spatiotemporal maps of cerebral activity ..
  59. Neural Substrates of Switching in Parkinson's Disease
    Elizabeth A Disbrow; Fiscal Year: 2010
    ..measure patterns of cortical activation and synchronization with functional magnetic resonance imaging and magnetoencephalography, respectively, to obtain complimentary anatomic and physiologic views of switching dysfunctions in PD...
  60. Neural systems for word recognition in space and time
    William W Graves; Fiscal Year: 2013
    ..the applicant's existing expertise in functional magnetic resonance imaging (fMRI) with new skills in magnetoencephalography (MEG)...
  61. Imaging Brain Activity in Substance Use Treatment
    Jon M Houck; Fiscal Year: 2013
    ..Claudia Tesche, I will explore the neural substrate of change talk during an actual MI session using magnetoencephalography (MEG) in a sample of ambivalent alcohol users...
  62. Fusion of Electromagnetic Brain Imaging and fMRI
    Srikantan S Nagarajan; Fiscal Year: 2012
    ..combine complementary high spatial resolution of functional MRI (fMRI) and high-temporal resolution of magnetoencephalography (MEG) and electroencephalography (EEG) data for high-fidelity reconstruction of brain activity...
  63. The interaction between neural activity during encoding and retrieval
    Jared F Danker; Fiscal Year: 2013
    ..In study 2, brain activity will be recorded during learning with fMRI and during remembering with magnetoencephalography (MEG), a technique ideally suited to determining precisely when brain activity is occurring...
  64. Potential Surrogate Marker of Epileptogenic Cortex
    Joyce Wu; Fiscal Year: 2009
    ..Wu, to develop expertise in quantitative electroencephalography (EEC) and magnetoencephalography (MEG) in pediatric epilepsy. Dr...
  65. Magnetoencephalography as a Biomarker for HIV-Associated Neurocognitive Disorder
    James T Becker; Fiscal Year: 2013
    ..One emerging technology that has only recently been applied to HIV Disease - by our research team - is magnetoencephalography (MEG)...
  66. Multimodal Studies of Executive Function Deficits in Autism Spectrum Disorders
    YIGAL N AGAM; Fiscal Year: 2012
    ..of event-related functional magnetic resonance imaging (fMRI) with the high temporal resolution of magnetoencephalography (MEG) and electroencephalography (EEG) to identify the regions involved and the timing of their ..
  67. Neurocognitive mechanisms of reality-monitoring failure
    Brian Gonsalves; Fiscal Year: 2004
    ..use spatio-temporal brain imaging techniques, combining functional magnetic resonance imaging (fMRI) with magnetoencephalography (MEG) and electroencephalography (EEG), to study the cognitive and neural events during memory encoding ..
  68. DEVELOPMENT OF BABYSQUID FOR NEONATAL BRAIN ASSESSMENT
    DOUGLAS PAULSON; Fiscal Year: 1999
    ..This Phase I research will evaluate the feasibility of developing a new non-invasive magnetoencephalography (MEG) sensor, called a babySQUID, capable of measuring spontaneous and evoked electrical activity of the ..
  69. Computational analysis of genesis of ERP and ERF
    Shingo Murakami; Fiscal Year: 2006
    ..We are proposing to extend this work to the neocortex in order to eventually help interpret magnetoencephalography (MEG) and electroencephalography (EEG) signals from the human brain...
  70. Neurodynamics of Attention: MEG, EEG, and Modeling
    Stephanie Jones; Fiscal Year: 2009
    ..Martinos center to simultaneously measure magnetoencephalography (MEG) and electroencephalography (EEG) signals during median nerve (MN) stimulation...
  71. Prefrontal -> Top Down Contribution to Object Recognition
    Moshe Bar; Fiscal Year: 2010
    ..capitalizing on the complementary strengths of psychophysical paradigms, functional and diffusion MRI, and magnetoencephalography to achieve the following specifiC aims: 1) To study the nature of the prefrontal cortex representations ..
  72. The Neurobiology of Auditory Perception in Autism
    Nicole Gage; Fiscal Year: 2006
    ..In this application, we propose experiments that combine a relatively rare neuroimaging technique (Magnetoencephalography (MEG)) with a well-characterized sample in order to accelerate our knowledge of the pathophysiology of AD...
  73. Definition and Development of the Phenotype of Autism
    Sally Rogers; Fiscal Year: 2006
    ..Research methods including behavioral and neuropsychological measures, brain imaging techniques including magnetoencephalography and magnetic resonance imaging, psychophysiological paradigms involving eye movements, electrodermal ..
  74. Multimodal Imaging of the Sensory Gating Deficit in Chronic Cocaine Abusers
    ANDREW MAYER; Fiscal Year: 2007
    ..neuroimaging, including functional magnetic resonance imaging (FMRI), electroencephalography (EEG) and magnetoencephalography (MEG), and novel data fusion techniques to investigate basic inhibitory processes (i.e...
  75. Simultaneous MEG and ULF MRI for Functional Imaging
    Robert Kraus; Fiscal Year: 2009
    ..We propose to combine magnetoencephalography (MEG) with ultra-low field magnetic resonance imaging (ULF-MRI)...
  76. Cyclotron and Radiochemistry
    Bruce Rosen; Fiscal Year: 2004
    ..We have recently added magnetoencephalography (MEG) and Optical Imaging to our extensive NMR program...
  77. Cognition and Action
    Jerome Sanes; Fiscal Year: 2004
    ..neuroimaging approach that integrates anatomic magnetic resonance imaging (MRI), functional MRI, magnetoencephalography (MEG), and electroencephalography (EEG) to improve spatial and temporal resolution of non-invasive imaging ..