Giorgio Bonmassar

Summary

Affiliation: Harvard University
Country: USA

Publications

  1. ncbi request reprint Motion and ballistocardiogram artifact removal for interleaved recording of EEG and EPs during MRI
    Giorgio Bonmassar
    NMR Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts 02129, USA
    Neuroimage 16:1127-41. 2002
  2. ncbi request reprint Spatiotemporal brain imaging of visual-evoked activity using interleaved EEG and fMRI recordings
    G Bonmassar
    NMR Center, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA
    Neuroimage 13:1035-43. 2001
  3. pmc PTFOS: flexible and absorbable intracranial electrodes for magnetic resonance imaging
    Giorgio Bonmassar
    AA Martinos Center, Harvard Medical School, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America
    PLoS ONE 7:e41187. 2012
  4. ncbi request reprint Influence of EEG electrodes on the BOLD fMRI signal
    G Bonmassar
    A Martinos Center, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA
    Hum Brain Mapp 14:108-15. 2001
  5. pmc Specific absorption rate studies of the parallel transmission of inner-volume excitations at 7T
    Adam C Zelinski
    Massachusetts Institute of Technology, Research Laboratory of Electronics, Cambridge, Massachusetts, USA
    J Magn Reson Imaging 28:1005-18. 2008
  6. ncbi request reprint EEG/(f)MRI measurements at 7 Tesla using a new EEG cap ("InkCap")
    Christos E Vasios
    Harvard Medical School, Massachusetts General Hospital, Athinoula A Martinos Center for Biomedical Imaging, Building 149, 13th Street, Charlestown 02129, USA
    Neuroimage 33:1082-92. 2006
  7. pmc MRI-based multiscale model for electromagnetic analysis in the human head with implanted DBS
    Maria Ida Iacono
    Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
    Comput Math Methods Med 2013:694171. 2013
  8. pmc Task-modulated "what" and "where" pathways in human auditory cortex
    Jyrki Ahveninen
    Harvard Medical School Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, CNY 149 13th Street, Charlestown, MA 02129, USA
    Proc Natl Acad Sci U S A 103:14608-13. 2006
  9. pmc An open-source hardware and software system for acquisition and real-time processing of electrophysiology during high field MRI
    Patrick L Purdon
    Department of Anesthesia and Critical Care, Massachusetts General Hospital, Charlestown, MA 02129, USA
    J Neurosci Methods 175:165-86. 2008
  10. pmc Bottom-up dependent gating of frontal signals in early visual cortex
    Leeland B Ekstrom
    Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA 02129, USA
    Science 321:414-7. 2008

Research Grants

Detail Information

Publications23

  1. ncbi request reprint Motion and ballistocardiogram artifact removal for interleaved recording of EEG and EPs during MRI
    Giorgio Bonmassar
    NMR Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts 02129, USA
    Neuroimage 16:1127-41. 2002
    ..Our adaptive filter approach can be implemented in real-time to allow for continuous monitoring of EEG and fMRI during clinical and cognitive studies...
  2. ncbi request reprint Spatiotemporal brain imaging of visual-evoked activity using interleaved EEG and fMRI recordings
    G Bonmassar
    NMR Center, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA
    Neuroimage 13:1035-43. 2001
    ..This type of simultaneous acquisition and analysis allows for the accurate characterization of the location and timing of neurophysiological activity in the human brain...
  3. pmc PTFOS: flexible and absorbable intracranial electrodes for magnetic resonance imaging
    Giorgio Bonmassar
    AA Martinos Center, Harvard Medical School, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America
    PLoS ONE 7:e41187. 2012
    ..The enhanced image quality could enable routine MRI exams of patients with intracranial electrode implantation and could also lead to chronic implantation solutions...
  4. ncbi request reprint Influence of EEG electrodes on the BOLD fMRI signal
    G Bonmassar
    A Martinos Center, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA
    Hum Brain Mapp 14:108-15. 2001
    ..The results demonstrate that the BOLD signal is not influenced by the presence of EEG electrodes when using a properly constructed MRI compatible recording cap...
  5. pmc Specific absorption rate studies of the parallel transmission of inner-volume excitations at 7T
    Adam C Zelinski
    Massachusetts Institute of Technology, Research Laboratory of Electronics, Cambridge, Massachusetts, USA
    J Magn Reson Imaging 28:1005-18. 2008
    ..To investigate the behavior of whole-head and local specific absorption rate (SAR) as a function of trajectory acceleration factor and target excitation pattern due to the parallel transmission (pTX) of spatially tailored excitations at 7T...
  6. ncbi request reprint EEG/(f)MRI measurements at 7 Tesla using a new EEG cap ("InkCap")
    Christos E Vasios
    Harvard Medical School, Massachusetts General Hospital, Athinoula A Martinos Center for Biomedical Imaging, Building 149, 13th Street, Charlestown 02129, USA
    Neuroimage 33:1082-92. 2006
    ..Our results show that the InkCap technology considerably improves the quality of both EEG and (f)MRI during concurrent measurements even at 7 T...
  7. pmc MRI-based multiscale model for electromagnetic analysis in the human head with implanted DBS
    Maria Ida Iacono
    Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
    Comput Math Methods Med 2013:694171. 2013
    ..9 kW/kg versus 7 kW/kg). The results suggest that submillimetric resolution and improved anatomical detail in the model may increase the accuracy of computed electric field and local SAR around the tip of the implant. ..
  8. pmc Task-modulated "what" and "where" pathways in human auditory cortex
    Jyrki Ahveninen
    Harvard Medical School Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, CNY 149 13th Street, Charlestown, MA 02129, USA
    Proc Natl Acad Sci U S A 103:14608-13. 2006
    ..This finding suggests that selective-attention effects are feature-specific in the human nonprimary auditory cortex and that they arise from enhanced tuning of receptive fields of task-relevant neuronal populations...
  9. pmc An open-source hardware and software system for acquisition and real-time processing of electrophysiology during high field MRI
    Patrick L Purdon
    Department of Anesthesia and Critical Care, Massachusetts General Hospital, Charlestown, MA 02129, USA
    J Neurosci Methods 175:165-86. 2008
    ....
  10. pmc Bottom-up dependent gating of frontal signals in early visual cortex
    Leeland B Ekstrom
    Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA 02129, USA
    Science 321:414-7. 2008
    ..We conclude that bottom-up activation is needed to enable top-down modulation of early visual cortex and that stimulus saliency determines the strength of this modulation...
  11. ncbi request reprint On the effect of resistive EEG electrodes and leads during 7 T MRI: simulation and temperature measurement studies
    Leonardo M Angelone
    MGH MIT HMS Athinoula A Martinos Center for Biomedical Imaging, Charlestown, MA 02129, USA
    Magn Reson Imaging 24:801-12. 2006
    ....
  12. pmc MRI-based anatomical model of the human head for specific absorption rate mapping
    Nikos Makris
    Department of Psychiatry, Neurology and Radiology Services, Center for Morphometric Analysis, HST Athinoula A Martinos Center, Harvard Medical School, Massachusetts General Hospital, Boston, MA 02129, USA
    Med Biol Eng Comput 46:1239-51. 2008
    ....
  13. pmc Atlas-based segmentation for globus pallidus internus targeting on low-resolution MRI
    Maria I Iacono
    AA Martinos Center for Biomedical Imaging, Dept of Radiology, MGH, Charlestown, MA, USA
    Conf Proc IEEE Eng Med Biol Soc 2011:5706-9. 2011
    ..The mapping of the atlas on the low-resolution MRI provided a highly accurate anatomical detail that can be useful for localizing the target...
  14. ncbi request reprint Basal ganglia activity remains elevated after movement in focal hand dystonia
    Anne J Blood
    Department of Neurology, Massachusetts General Hospital, Charlestown, MA 02129, USA
    Ann Neurol 55:744-8. 2004
    ..We posit that inhibitory control of the basal ganglia may be faulty in focal hand dystonia, and that the increases we observe in "resting" activity may mask basal ganglia abnormalities in standard imaging contrast analyses...
  15. ncbi request reprint Metallic electrodes and leads in simultaneous EEG-MRI: specific absorption rate (SAR) simulation studies
    Leonardo M Angelone
    MGH MIT HMS Athinoula A Martinos Center for Functional Imaging, Charlestown, Massachusetts 02129, USA
    Bioelectromagnetics 25:285-95. 2004
    ..4) increase in the skin. At 128 MHz, there was a fivefold (x5.6) increase of whole head SAR. Head models were obtained from two different subjects, with an inter-subject whole head SAR variability of 3%. ...
  16. pmc Dynamic cortical activity during the perception of three-dimensional object shape from two-dimensional random-dot motion
    Sunao Iwaki
    Human Technology Research Institute, National Institute of Advanced Industrial Science and Technology AIST, Tsukuba, Ibaraki 305 8566, Japan, Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA 02129, USA
    J Integr Neurosci 12:355-67. 2013
    ....
  17. pmc Location-specific cortical activation changes during sleep after training for perceptual learning
    Yuko Yotsumoto
    Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Charlestown, MA 02129, USA
    Curr Biol 19:1278-82. 2009
    ..These results suggest that as far as V1 is concerned, only the trained region is involved in improving task performance after sleep...
  18. pmc Simultaneous electroencephalography and functional magnetic resonance imaging of general anesthesia
    Patrick L Purdon
    Department of Anesthesia and Critical Care, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
    Ann N Y Acad Sci 1157:61-70. 2009
    ....
  19. ncbi request reprint Finger motion sensors for fMRI motor studies
    Judith D Schaechter
    MGH MIT HMS Athinoula A Martinos Center for Biomedical Imaging, 13th Street, Building 149, Room 2301, Charlestown, MA 02129, USA
    Neuroimage 31:1549-59. 2006
    ....
  20. pmc Coupling between somatosensory evoked potentials and hemodynamic response in the rat
    Maria Angela Franceschini
    Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 13th Street Bldg 149 room 2301, Charlestown, MA 02129, USA
    Neuroimage 41:189-203. 2008
    ..The N1 and P2 components, and not P1, need to be considered to correctly interpret neurovascular coupling...
  21. doi request reprint Dual energy pulses for Electrical Impedance Spectroscopy with the stochastic Gabor function
    Giorgio Bonmassar
    AA Martinos Center, Harvard Medical School, Charlestown, MA 02129, USA giorgio nmr mgh harvard edu
    Conf Proc IEEE Eng Med Biol Soc 2012:138-41. 2012
    ..This could be of value in advancing EIS of stroke and hemorrhage...
  22. pmc Microscopic magnetic stimulation of neural tissue
    Giorgio Bonmassar
    Athinoula A Martinos Center for Biomedical Imaging, Harvard Medical School, Massachusetts General Hospital, Charlestown, MA 02129, USA
    Nat Commun 3:921. 2012
    ..These results raise the possibility that micro-magnetic stimulation coils, small enough to be implanted within the brain parenchyma, may prove to be an effective alternative to existing stimulation devices...
  23. pmc Human posterior auditory cortex gates novel sounds to consciousness
    Iiro P Jaaskelainen
    Massachusetts General Hospital, Massachusetts Institute of Technology, Harvard Medical School, Athinoula A Martinos Center for Biomedical Imaging, Charlestown, MA 02129, USA
    Proc Natl Acad Sci U S A 101:6809-14. 2004
    ..Our converging findings suggest that transient adaptation of feature-specific neurons within human posterior auditory cortex filters superfluous sounds from entering one's awareness...

Research Grants4

  1. Concurrent EEG and fMRI Studies in Human Brain Activity
    Giorgio Bonmassar; Fiscal Year: 2003
    ..We propose a series of simultaneous fMRI/EEG experiments that will investigate the spatial location and temporal processing of event-related potentials in the human brain. ..
  2. Concurrent EEG and fMRI Studies in Human Brain Activity
    Giorgio Bonmassar; Fiscal Year: 2004
    ..We propose a series of simultaneous fMRI/EEG experiments that will investigate the spatial location and temporal processing of event-related potentials in the human brain. ..
  3. Concurrent EEG and fMRI Studies in Human Brain Activity
    Giorgio Bonmassar; Fiscal Year: 2005
    ..We propose a series of simultaneous fMRI/EEG experiments that will investigate the spatial location and temporal processing of event-related potentials in the human brain. ..
  4. Simultaneous fMRI and Electrophysiology in Visual System
    Giorgio Bonmassar; Fiscal Year: 2007
    ..The final system for general electrophysiology during MRI will become a high impact tool for vision research, given the worldwide lack of commercially available MR-compatible systems for electrophysiological recording. ..