psychophysics

Summary

Summary: The science dealing with the correlation of the physical characteristics of a stimulus, e.g., frequency or intensity, with the response to the stimulus, in order to assess the psychologic factors involved in the relationship.

Top Publications

  1. ncbi Synthetic faces, face cubes, and the geometry of face space
    Hugh R Wilson
    Centre for Vision Research, York University, Toronto, Canada
    Vision Res 42:2909-23. 2002
  2. pmc When do visual and verbal memories conflict? The importance of working-memory load and retrieval
    Candice C Morey
    Department of Psychological Sciences, University of Missouri Columbia, 210 McAlester Hall, Columbia, MO 65211, USA
    J Exp Psychol Learn Mem Cogn 31:703-13. 2005
  3. ncbi The Psychophysics Toolbox
    D H Brainard
    Department of Psychology, University of California in Santa Barbara 93106, USA
    Spat Vis 10:433-6. 1997
  4. ncbi The VideoToolbox software for visual psychophysics: transforming numbers into movies
    D G Pelli
    Department of Psychology, New York University, NY 10003, USA
    Spat Vis 10:437-42. 1997
  5. ncbi The psychometric function: I. Fitting, sampling, and goodness of fit
    F A Wichmann
    University of Oxford, England
    Percept Psychophys 63:1293-313. 2001
  6. pmc PsychoPy--Psychophysics software in Python
    Jonathan W Peirce
    Nottingham Visual Neuroscience, School of Psychology, University of Nottingham, Nottingham NG7 2RD, United Kingdom
    J Neurosci Methods 162:8-13. 2007
  7. ncbi Pixel independence: measuring spatial interactions on a CRT display
    D G Pelli
    Department of Psychology, New York University, NY 10003, USA
    Spat Vis 10:443-6. 1997
  8. pmc Sound-driven synaptic inhibition in primary visual cortex
    Giuliano Iurilli
    Department of Neuroscience and Brain Technologies, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
    Neuron 73:814-28. 2012
  9. ncbi Adaptive norm-based coding of facial identity
    Gillian Rhodes
    School of Psychology, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
    Vision Res 46:2977-87. 2006
  10. ncbi Edge co-occurrence in natural images predicts contour grouping performance
    W S Geisler
    Department of Psychology, University of Texas at Austin, Austin, TX 78712, USA
    Vision Res 41:711-24. 2001

Research Grants

  1. Seeing through the Ears
    Alvaro Pascual Leone; Fiscal Year: 2006
  2. Psychophysics of Divalent Salts and Metallic Taste
    HARRY LAWLESS; Fiscal Year: 2006
  3. Taste psychophysics of bitter phytochemicals
    MIRIAM LINSCHOTEN; Fiscal Year: 2005
  4. BEHAVIORAL & PHYSIOLOGICAL STUDIES OF SOUND LOCALIZATION
    TOM YIN; Fiscal Year: 2005
  5. CHEMOSENSORY PERCEPTION AND PSYCHOPHYSICS IN THE AGED
    CLAIRE L MURPHY; Fiscal Year: 2013
  6. Vision Sciences Training Grant
    Carol A Mason; Fiscal Year: 2013
  7. Bilateral cochlear implants: Physiology and psychophysics
    Bertrand Delgutte; Fiscal Year: 2012
  8. Aging Auditory System: Presbycusis and Its Neural Bases
    Robert D Frisina; Fiscal Year: 2013
  9. Towards the neuronal correlates of visual awareness
    Gabriel Kreiman; Fiscal Year: 2009
  10. Impact of Receptor Polymorphisms on Sensations from Common Oral Irritants
    JOHN EDWARD HAYES; Fiscal Year: 2013

Detail Information

Publications363 found, 100 shown here

  1. ncbi Synthetic faces, face cubes, and the geometry of face space
    Hugh R Wilson
    Centre for Vision Research, York University, Toronto, Canada
    Vision Res 42:2909-23. 2002
    ..Synthetic faces and face cubes thus provide a useful new quantitative approach to the study of face perception and face space...
  2. pmc When do visual and verbal memories conflict? The importance of working-memory load and retrieval
    Candice C Morey
    Department of Psychological Sciences, University of Missouri Columbia, 210 McAlester Hall, Columbia, MO 65211, USA
    J Exp Psychol Learn Mem Cogn 31:703-13. 2005
    ..Interference also occurred when especially large silent verbal and visual loads were held concurrently. These results suggest central storage along with code-specific passive storage...
  3. ncbi The Psychophysics Toolbox
    D H Brainard
    Department of Psychology, University of California in Santa Barbara 93106, USA
    Spat Vis 10:433-6. 1997
    The Psychophysics Toolbox is a software package that supports visual psychophysics. Its routines provide an interface between a high-level interpreted language (MATLAB on the Macintosh) and the video display hardware...
  4. ncbi The VideoToolbox software for visual psychophysics: transforming numbers into movies
    D G Pelli
    Department of Psychology, New York University, NY 10003, USA
    Spat Vis 10:437-42. 1997
    ..Transcending the particular computer and language, we discuss the nature of the computer-display interface, and how to calibrate and control it...
  5. ncbi The psychometric function: I. Fitting, sampling, and goodness of fit
    F A Wichmann
    University of Oxford, England
    Percept Psychophys 63:1293-313. 2001
    ..We have made available the software to implement our methods...
  6. pmc PsychoPy--Psychophysics software in Python
    Jonathan W Peirce
    Nottingham Visual Neuroscience, School of Psychology, University of Nottingham, Nottingham NG7 2RD, United Kingdom
    J Neurosci Methods 162:8-13. 2007
    ..If a user wants to add support for a particular stimulus, analysis or hardware device they can look at the code for existing examples, modify them and submit the modifications back into the package so that the whole community benefits...
  7. ncbi Pixel independence: measuring spatial interactions on a CRT display
    D G Pelli
    Department of Psychology, New York University, NY 10003, USA
    Spat Vis 10:443-6. 1997
    ..Unfortunately most monitors have inadequate video bandwidth, DC restoration, and high-voltage regulation to live up to this ideal model. Two tests are recommended for assessing a CRT's deviation from the pixel-independence model...
  8. pmc Sound-driven synaptic inhibition in primary visual cortex
    Giuliano Iurilli
    Department of Neuroscience and Brain Technologies, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
    Neuron 73:814-28. 2012
    ..Thus, auditory cortex activation by salient stimuli degrades potentially distracting sensory processing in visual cortex by recruiting local, translaminar, inhibitory circuits...
  9. ncbi Adaptive norm-based coding of facial identity
    Gillian Rhodes
    School of Psychology, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
    Vision Res 46:2977-87. 2006
    ..Component identities were also harder to detect in morphs of opposite than non-opposite face pairs. We propose an adaptive norm-based coding model of face identity...
  10. ncbi Edge co-occurrence in natural images predicts contour grouping performance
    W S Geisler
    Department of Psychology, University of Texas at Austin, Austin, TX 78712, USA
    Vision Res 41:711-24. 2001
    ....
  11. ncbi Bayesian adaptive estimation of psychometric slope and threshold
    L L Kontsevich
    Smith Kettlewell Eye Research Institute, San Francisco CA 94115, USA
    Vision Res 39:2729-37. 1999
    ..Threshold estimation within 2 dB (23%) precision requires less than 30 trials for a typical 2AFC detection task. To get the slope estimate with the same precision takes about 300 trials...
  12. ncbi Motion psychophysics: 1985-2010
    David Burr
    Department of Psychology, University of Florence, Florence, Italy
    Vision Res 51:1431-56. 2011
    ..While it is certainly not exhaustive, it attempts to cover most of the major achievements during that period, and speculate on where the field is heading...
  13. ncbi Psychophysics: bees trade off foraging speed for accuracy
    Lars Chittka
    Zoologie II, Biozentrum, Universitat Wurzburg, Am Hubland, 97074 Wurzburg, Germany
    Nature 424:388. 2003
  14. pmc Response suppression in v1 agrees with psychophysics of surround masking
    Barbara Zenger-Landolt
    Department of Psychology, Stanford University, Stanford, California 94305, USA
    J Neurosci 23:6884-93. 2003
    ..We used functional magnetic resonance imaging (fMRI) and psychophysics to quantitatively compare these physiological and perceptual effects...
  15. ncbi Perceptual learning improves contrast sensitivity and visual acuity in adults with anisometropic amblyopia
    Yifeng Zhou
    Vision Research Lab, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui
    Vision Res 46:739-50. 2006
    ..We concluded that the visual system of adult amblyopes might still retain substantial plasticity. Perceptual learning shows potential as a clinical tool for treating child and adult amblyopia...
  16. pmc Learning to identify crowded letters: does it improve reading speed?
    Susana T L Chung
    College of Optometry, University of Houston, Houston, TX, USA
    Vision Res 47:3150-9. 2007
    ..2%. These findings demonstrated that crowding in peripheral vision could be reduced through training. Unfortunately, the reduction in the crowding effect did not lead to improved peripheral reading speed...
  17. pmc Neural basis of 3-D shape aftereffects
    Andrea Li
    Department of Psychology, Queens College, 65 30 Kissena Boulevard, Flushing, NY 11367, USA
    Vision Res 48:244-52. 2008
    ..The results showed that mechanisms that adapt to 3-D shapes combine real and illusory 2-D orientation information over a range of spatial frequencies...
  18. ncbi The respective role of low and high spatial frequencies in supporting configural and featural processing of faces
    Valerie Goffaux
    Face Categorization Laboratory and Neurophysiology Laboratory, University of Louvain, Place du Cardinal Mercier 10, 1348 Louvain la Neuve, Belgium
    Perception 34:77-86. 2005
    ..These results support the dominant role that LSFs play in the configural processing of faces, whereas featural processing is largely dependent on HSFs...
  19. pmc An olfactory demography of a diverse metropolitan population
    Andreas Keller
    Laboratory of Neurogenetics and Behaviour, The Rockefeller University, 1230 York Avenue, Box 63, New York, NY 10065, USA
    BMC Neurosci 13:122. 2012
    ..Here we investigate the influence of these factors on both general olfactory acuity and on the perception of 66 structurally and perceptually different odours in a diverse subject population...
  20. ncbi Toward a psychophysics of agency: detecting gain and loss of control over auditory action effects
    Bruno H Repp
    Haskins Laboratories, New Haven, CT 06511 6624, USA
    J Exp Psychol Hum Percept Perform 33:469-82. 2007
    ..Analysis of bias revealed a tendency to attribute action effects to self-control. Thus, judgments of agency rely on veridical sensorimotor cues but can also be subject to cognitive bias...
  21. pmc Sleep and rest facilitate implicit memory in a visual search task
    S C Mednick
    Department of Psychiatry and Veterans Affairs, San Diego Healthcare System, University of California, San Diego, Research Service, La Jolla, CA 92161, United States
    Vision Res 49:2557-65. 2009
    ..They prompt a reevaluation of the hippocampal replay hypothesis as a general model of sleep-dependent learning...
  22. ncbi The psychophysics of chasing: A case study in the perception of animacy
    Tao Gao
    Department of Psychology, Yale University, New Haven, CT 06520 8205, United States
    Cogn Psychol 59:154-79. 2009
    ..We show how these challenges can be met, at least in our case study of perceived chasing, via tasks based on dynamic visual search (the Find-the-Chase task) and a new type of interactive display (the Don't-Get-Caught! task)...
  23. ncbi Backward masking suppresses collinear facilitation in the visual cortex
    Anna Sterkin
    Goldschleger Eye Research Institute, Sheba Medical Center, Tel Aviv University, Tel Hashomer 52621, Israel
    Vision Res 49:1784-94. 2009
    ..We suggest an explanation for the role of improved detection of collinear stimuli in grouping of contours...
  24. pmc Learning letter identification in peripheral vision
    Susana T L Chung
    College of Optometry and Center for Neuro Engineering and Cognitive Science, University of Houston, 505 J Davis Armistead Bldg, Houston, TX 77204 2020, USA
    Vision Res 45:1399-412. 2005
    ..Results from both the PTM analysis and the double-pass experiment imply that the stimulus-dependent component of the internal noise does not change with learning...
  25. ncbi Area summation in human visual system: psychophysics, fMRI, and modeling
    Lauri Nurminen
    Brain Research Unit, Low Temperature Laboratory, and Advanced Magnetic Imaging Centre, Helsinki University of Technology, Espoo, Finland
    J Neurophysiol 102:2900-9. 2009
    ..We investigated area summation in human vision with psychophysics and functional magnetic resonance imaging (fMRI)...
  26. ncbi Differential lateralization for words and faces: category or psychophysics?
    Evelyne Mercure
    Center for Brain and Cognitive Development, Birkbeck University of London, 32 Torrington Square, London, UK
    J Cogn Neurosci 20:2070-87. 2008
    ..These findings suggest that differential lateralization for words and faces, at least as measured by the N170, is influenced by spatial frequency (words), stimulus presentation time, and category...
  27. ncbi No direction-specific bimodal facilitation for audiovisual motion detection
    David Alais
    Istituto di Neurofisiologia del CNR, Via G Moruzzi, 1, Pisa 56125, Italy
    Brain Res Cogn Brain Res 19:185-94. 2004
    ..The superadditivity observed neurally (especially in deep-layer superior collicular cells), when weak unimodal signals are combined in bimodal cells does not apply to the detection of linear translational motion...
  28. pmc A functional link between area MSTd and heading perception based on vestibular signals
    Yong Gu
    Deptartment of Anatomy and Neurobiology, Washington University School of Medicine, 660 South Euclid Avenue, St Louis, Missouri 63110, USA
    Nat Neurosci 10:1038-47. 2007
    ..This study provides evidence that links single-unit activity to spatial perception mediated by vestibular signals, and supports the idea that the role of MSTd in self-motion perception extends beyond optic flow processing...
  29. pmc Crowding: a cortical constraint on object recognition
    Denis G Pelli
    Psychology and Neural Science, New York University, New York, NY 10003, USA
    Curr Opin Neurobiol 18:445-51. 2008
    ..Furthermore, we show that much of this can be accounted for by supposing that each 'combining field', defined by the critical spacing measurements, is implemented by a fixed number of cortical neurons...
  30. ncbi Bimodal and trimodal multisensory enhancement: effects of stimulus onset and intensity on reaction time
    Adele Diederich
    School of Humanities and Social Sciences, International University Bremen, D 28725 Bremen, Germany
    Percept Psychophys 66:1388-404. 2004
    ..The results are discussed with respect to previous findings in a focused attention task and are compared with multisensory integration rules observed in bimodal and trimodal superior colliculus neurons in the cat and monkey...
  31. ncbi Measuring, estimating, and understanding the psychometric function: a commentary
    S A Klein
    School of Optometry, University of California, Berkeley 94720 2020, USA
    Percept Psychophys 63:1421-55. 2001
    The psychometric function, relating the subject's response to the physical stimulus, is fundamental to psychophysics. This paper examines various psychometric function topics, many inspired by this special symposium issue of Perception &..
  32. pmc Crowding--an essential bottleneck for object recognition: a mini-review
    Dennis M Levi
    University of California at Berkeley, School of Optometry and The Helen Wills Neuroscience Institute, Berkeley, CA 94720 2020, USA
    Vision Res 48:635-54. 2008
    ..A full understanding of crowding may allow us to understand this bottleneck to object recognition and the rules that govern the integration of features into objects...
  33. ncbi The psychophysics of visual search
    J Palmer
    Department of Psychology, University of Washington, Box 351525, Seattle, WA 98195 1525, USA
    Vision Res 40:1227-68. 2000
    ..We conclude that low threshold theories can account for simple visual search without invoking mechanisms such as limited capacity or serial processing...
  34. ncbi Perception of contours and shapes: low and intermediate stage mechanisms
    Gunter Loffler
    Department of Vision Sciences, Glasgow Caledonian University, Cowcaddens Road, Glasgow G4 0BA, Scotland, UK
    Vision Res 48:2106-27. 2008
    ..Evidence from psychophysics and physiology is converging towards the identification of an intermediate level of shape processing, where ..
  35. ncbi Symbolic control of visual attention
    B Hommel
    Section of Experimental and Theoretical Psychology, University of Leiden, The Netherlands
    Psychol Sci 12:360-5. 2001
    ..Overall, the present findings indicate that there is a strong connection between the overlearned representations of the meaning of communicative symbols and the reflexive orienting of visual attention...
  36. ncbi Constraints on long range interactions mediating contour detection
    M W Pettet
    Smith Kettlewell Eye Research Institute, San Francisco, CA 94115, USA
    Vision Res 38:865-79. 1998
    ..However, if a closed contour meets certain geometric constraints, then lateral interactions based on these constraints can generate facilitation that reverberates around the closed path, thereby enhancing the contour's visibility...
  37. ncbi Visual prediction: psychophysics and neurophysiology of compensation for time delays
    Romi Nijhawan
    Department of Psychology, University of Sussex, Falmer, East Sussex, BN1 9QH, United Kingdom
    Behav Brain Sci 31:179-98; discussion 198-239. 2008
    ..Understanding visual prediction will inform our theories of sensory processes and visual perception, and will impact our notion of visual awareness...
  38. pmc A feedforward architecture accounts for rapid categorization
    Thomas Serre
    Center for Biological and Computational Learning, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
    Proc Natl Acad Sci U S A 104:6424-9. 2007
    ..non-animal categorization task...
  39. ncbi Viewpoint dependence in adaptation to facial identity
    Christopher P Benton
    Department of Experimental Psychology, University of Bristol, 8 Woodland Road, Bristol BS8 1TN, UK
    Vision Res 46:3313-25. 2006
    ..Our findings support models in which identity is encoded, to a large degree, by viewpoint dependent non-retinotopic neural mechanisms. Functional imaging studies suggest the fusiform gyrus as the most likely location for this mechanism...
  40. pmc The psychophysics of visual motion and global form processing in autism
    Kami Koldewyn
    McGovern Institute for Brain Research, Cambridge, MA 02139, USA
    Brain 133:599-610. 2010
    ..These results do not support a general dorsal stream dysfunction in adolescents with autism but provide evidence of a more complex impairment in higher-level dynamic attentional processes...
  41. ncbi Detection and recognition of radial frequency patterns
    F Wilkinson
    Department of Psychology, McGill University, Montreal, Quebec, Canada
    Vision Res 38:3555-68. 1998
    ....
  42. ncbi A neural representation of categorization uncertainty in the human brain
    Jack Grinband
    Center for Neurobiology and Behavior, Columbia University, New York, New York 10032, USA
    Neuron 49:757-63. 2006
    ..We found this network to be distinct from the frontoparietal attention network, consisting of the frontal and parietal eye fields, where activity was not correlated with categorization uncertainty...
  43. pmc A novel device for the study of somatosensory information processing
    Jameson K Holden
    Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
    J Neurosci Methods 204:215-20. 2012
    ..The results are consistent with prior studies that implicated synchronization of adjacent and near-adjacent cortical ensembles with conditioning stimuli in impacting TOJ performance (Tommerdahl et al., 2007a,b)...
  44. pmc Human discrimination of rotational velocities
    Robert M Mallery
    Department of Otolaryngology Head and Neck Surgery, Washington University School of Medicine, Saint Louis, MO 63110, USA
    Exp Brain Res 204:11-20. 2010
    ..Quantifying this relationship may help elucidate the role of higher-level processes in maintaining balance and provide information to diagnose and guide therapy of patients with central causes for imbalance...
  45. ncbi Seeing multiple directions of motion-physiology and psychophysics
    S Treue
    Cognitive Neuroscience Laboratory, Dept of Neurology, University of Tubingen, Auf der Morgenstelle 15, 72076 Tubingen, Germany
    Nat Neurosci 3:270-6. 2000
    ..Our findings offer insights into the coding of multi-valued sensory signals and provide constraints for biologically based computational models...
  46. ncbi Feature-based attention influences contextual interactions during motion repulsion
    Tzvetomir Tzvetanov
    Cognitive Neuroscience Laboratory, German Primate Center, Kellnerweg 4, Gottingen, Germany
    Vision Res 46:3651-8. 2006
    ..The observed attentional effects reflect a feature-based mechanism affecting human perception, by modulating spatial interactions among sensory information and enhancing the attended direction of motion...
  47. ncbi Dopamine alters tactile perception in Parkinson's disease
    Aimee J Nelson
    Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
    Can J Neurol Sci 39:52-7. 2012
    ..In PD, it remains unclear whether the temporal sequencing of tactile stimuli is altered and if dopaminergic medications alter this perception...
  48. ncbi The psychophysics of perceptual memory
    S Magnussen
    Department of Psychology, University of Oslo, Norway
    Psychol Res 62:81-92. 1999
    ..The experimental evidence for this hypothesis is reviewed...
  49. pmc Psychophysics of the McGurk and other audiovisual speech integration effects
    Jintao Jiang
    Division of Communication and Auditory Neuroscience, House Ear Institute, Los Angeles, California, USA
    J Exp Psychol Hum Percept Perform 37:1193-209. 2011
    ..That audiovisual stimulus relationships can account for perceptual response distributions supports the possibility that internal representations are based on modality-specific stimulus relationships...
  50. ncbi Explaining brightness illusions using spatial filtering and local response normalization
    Alan E Robinson
    Department of Cognitive Science, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093 0515, USA
    Vision Res 47:1631-44. 2007
    ....
  51. ncbi A two-point visual control model of steering
    Dario D Salvucci
    Department of Computer Science, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA
    Perception 33:1233-48. 2004
    ....
  52. pmc Interactions between the spatial and temporal stimulus factors that influence multisensory integration in human performance
    Ryan A Stevenson
    Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
    Exp Brain Res 219:121-37. 2012
    ..e., visual-auditory) stimulus...
  53. ncbi Spatial luminance contrast sensitivity measured with transient VEP: comparison with psychophysics and evidence of multiple mechanisms
    Givago S Souza
    Departamento de Fisiologia, Universidade Federal do Para, Brazil
    Invest Ophthalmol Vis Sci 48:3396-404. 2007
    ..To compare the spatial luminance contrast sensitivity function (CSF) obtained with transient visual evoked potentials (VEPs) with that obtained with psychophysical measurements...
  54. ncbi Tactile sensitivity of children: effects of frequency, masking, and the non-Pacinian I psychophysical channel
    Burak Güçlü
    Biomedical Engineering Institute, Bogazici University, Istanbul 34342, Turkey
    J Exp Child Psychol 98:113-30. 2007
    ..These findings contradict the hypothesis that there is gradual loss of tactile sensitivity starting from childhood to early adulthood. The loss of sensitivity due to aging probably is more abrupt and occurs at a later age...
  55. ncbi The capacity of visual short-term memory is set both by visual information load and by number of objects
    G A Alvarez
    Department of Psychology, Harvard University, Cambridge, MA 02138, USA
    Psychol Sci 15:106-11. 2004
    ..Thus, both the visual information load and number of objects impose capacity limits on visual short-term memory...
  56. ncbi Moving and looming stimuli capture attention
    Steven L Franconeri
    Department of Psychology, Harvard University, Cambridge, Massachusetts 02138, USA
    Percept Psychophys 65:999-1010. 2003
    ..Although the sorts of dynamic events that capture attention do not fit neatly into a single category, we speculate that stimuli that signal potentially behaviorally urgent events are more likely to receive attentional priority...
  57. ncbi Psychophysics: how fielders arrive in time to catch the ball
    Peter McLeod
    Department of Experimental Psychology, University of Oxford, South Parks Road, Oxford OX1 3UD, UK
    Nature 426:244-5. 2003
    ..Allowing the horizontal angle to increase minimizes the acceleration that the fielder must achieve to reach the interception point at the same time as the ball...
  58. ncbi Converging evidence for diverging pathways: neuropsychology and psychophysics tell the same story
    David A Westwood
    School of Health and Human Performance, Dalhousie University, Halifax, Nova Scotia, Canada B3H 3J5
    Vision Res 51:804-11. 2011
    ..Although some of this evidence is controversial, we will argue that, on balance, there is good agreement between the psychophysical and neuropsychological data - and that the action and perception hypothesis is still alive and well...
  59. ncbi Motion streaks improve motion detection
    Mark Edwards
    School of Psychology, Australian National University, Canberra, ACT 0200, Australia
    Vision Res 47:828-33. 2007
    ..These results support the notion that detection thresholds were facilitated by a motion-streak system...
  60. ncbi Boundary assignment in a recurrent network architecture
    Janneke F M Jehee
    Department of Psychology, University of Amsterdam, Amsterdam, The Netherlands
    Vision Res 47:1153-65. 2007
    ..The proposed connection scheme assigns edges faster and more reliable to objects than one with only horizontal connections. The model accounts for both psychophysical and neurophysiological data on figural assignment...
  61. ncbi An oblique effect for local motion: psychophysics and natural movie statistics
    Steven C Dakin
    Institute of Ophthalmology, University College London, Bath Street, London, United Kingdom
    J Vis 5:878-87. 2005
    ..If motion detectors are optimized to deal with our visual world then such anisotropies likely explain the local nature of the OEM...
  62. ncbi Bias and sensitivity in two-interval forced choice procedures: Tests of the difference model
    Yaffa Yeshurun
    Department of Psychology, University of Haifa, 31905 Haifa, Israel
    Vision Res 48:1837-51. 2008
    ..We find little evidence supporting the claims that 2-IFC is unbiased and that it does not alter sensitivity and we also reject the two claims associated with the Difference Model as a model of performance in our own experiment...
  63. ncbi Vibrotactile intensity and frequency information in the pacinian system: a psychophysical model
    Sliman Bensmaïa
    University of North Carolina, Chapel Hill, North Carolina, USA
    Percept Psychophys 67:828-41. 2005
    ....
  64. pmc Global contour processing in amblyopia
    Dennis M Levi
    School of Optometry and Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720 2020, USA
    Vision Res 47:512-24. 2007
    ..The residual deficits reported here cannot be simply ascribed to reduced visibility or increased positional uncertainty, and we therefore conclude that these are genuine deficits in global contour segregation and integration...
  65. pmc Predicting direction detection thresholds for arbitrary translational acceleration profiles in the horizontal plane
    Florian Soyka
    Department of Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Spemannstraße 38, 72076, Tubingen, Germany
    Exp Brain Res 209:95-107. 2011
    ..Our modeling approach represents an important advancement, because it allows for a more general and accurate description of perceptual thresholds for simple and complex translational motions...
  66. pmc Suppression during binocular rivalry broadens orientation tuning
    Sam Ling
    Department of Psychology, Vanderbilt University, Nashville, TN 37203, USA
    Psychol Sci 20:1348-55. 2009
    ..Thus, the discriminability of a suppressed stimulus is weakened not only by a general decrease in signal strength, but also by broader orientation tuning that introduces more noise in the neural representation of the suppressed stimulus...
  67. ncbi Superior visual search in autism
    M A O'Riordan
    Department of Experimental Psychology, University of Cambridge, Cambridge, United Kingdom
    J Exp Psychol Hum Percept Perform 27:719-30. 2001
    ..Unique item detection in autism is discussed in the light of mechanisms proposed to be involved in normal visual search performance...
  68. ncbi Mechanisms selectively engaged in rivalry: normal vision habituates, rivalrous vision primes
    Joel Pearson
    Colour, Form and Motion Lab, Visual Perception Unit, School of Psychology, The University of Sydney, NSW 2006, Australia
    Vision Res 45:707-14. 2005
    ..This suggests that visual rivalry might recruit mechanisms that are not engaged in 'normal' non-rivalrous vision but perhaps dedicated to the resolution of competing sensory information...
  69. ncbi Psychophysics of reading. XX. Linking letter recognition to reading speed in central and peripheral vision
    G E Legge
    Minnesota Laboratory for Low Vision Research, University of Minnesota, 75 East River Rd, Minneapolis, MN 55455, USA
    Vision Res 41:725-43. 2001
    ..T. L., Mansfield, J. S., & Legge, G. E. (1998). Psychophysics of reading. XVIII. The effect of print size on reading speed in normal peripheral vision...
  70. ncbi Metacontrast masking and stimulus contrast polarity
    Bruno G Breitmeyer
    Department of Psychology, University of Houston, Houston, TX 77204 5022, USA
    Vision Res 48:2433-8. 2008
    ..We conclude that Becker and Anstis's failure to obtain metacontrast with stimuli of opposite contrast polarity is due to their use of a single, relatively large, SOA value...
  71. ncbi Detection, discrimination and integration of second-order orientation information in strabismic and anisometropic amblyopia
    Behzad Mansouri
    Department of Opthalmology, McGill Vision Research Unit, 687 Pine Avenue West, Rm H4 14, Montreal, Quebec, Canada H3A 1A1
    Vision Res 45:2449-60. 2005
    ..Orientation discrimination for an isolated second-order patch was comparable in normal and amblyopic eyes. We showed that pure integration of second-order patterns can be normal in amblyopia...
  72. ncbi Multisensory cues capture spatial attention regardless of perceptual load
    Valerio Santangelo
    Department of Experimental Psychology, University of Oxford, UK
    J Exp Psychol Hum Percept Perform 33:1311-21. 2007
    ....
  73. ncbi Psychophysical evidence for two routes to suppression before binocular summation of signals in human vision
    D H Baker
    Life and Health Sciences, Aston University, Aston Street, Birmingham B47ET, UK
    Neuroscience 146:435-48. 2007
    ..The interocular route is a good candidate for the initial pathway involved in binocular rivalry and predicts that interocular cross-orientation suppression should be found in cortical cells with predominantly ipsiocular drive...
  74. pmc Three-dimensional shape perception from chromatic orientation flows
    Qasim Zaidi
    SUNY College of Optometry, Department of Vision Sciences, New York, New York 10036, USA
    Vis Neurosci 23:323-30. 2006
    ..In addition, we show that identification of 3-D shapes from chromatic flows can be masked by luminance modulations, indicating that it is subserved by orientation-tuned neurons sensitive to both chromatic and luminance modulations...
  75. ncbi Attended but unseen: visual attention is not sufficient for visual awareness
    R W Kentridge
    Department of Psychology, University of Durham, South Road, Durham DH1 3LE, UK
    Neuropsychologia 46:864-9. 2008
    ..Visual attention could therefore facilitate processing of an invisible target and cannot, therefore, be a sufficient precondition for visual awareness...
  76. ncbi Enhanced and diminished visuo-spatial information processing in autism depends on stimulus complexity
    Armando Bertone
    Visual Psychophysics and Perception Laboratory, Ecole d Optometrie, Universite de Montreal, Montreal, Canada
    Brain 128:2430-41. 2005
    ..We suggest that atypical neural connectivity, resulting in enhanced lateral inhibition, may account for both enhanced and decreased low-level information processing in autism...
  77. pmc Holistic processing of faces happens at a glance
    Jennifer J Richler
    Department of Psychology, Vanderbilt University, 111, 21st Avenue South, Wilson Hall, Nashville, TN 37240, USA
    Vision Res 49:2856-61. 2009
    ....
  78. ncbi Crowding degrades saccadic search performance
    Björn N S Vlaskamp
    Psychonomics, Helmholtz Institute, Universiteit Utrecht, Heidelberglaan 2, NL 3584 CS Utrecht, The Netherlands
    Vision Res 46:417-25. 2006
    ..We conclude that in order to understand eye movements in (everyday) tasks that require active exploration of the visual scene, crowding should be taken into account...
  79. ncbi Space and time in visual context
    Odelia Schwartz
    Albert Einstein College of Medicine, Jack and Pearl Resnick Campus, 1300 Morris Park Avenue, Bronx, New York 10461 718 430 2000, USA
    Nat Rev Neurosci 8:522-35. 2007
    ..We review the empirical literature and discuss the computational and statistical ideas that are battling to explain these conundrums, and thereby gain favour as more general accounts of cortical processing...
  80. ncbi Immediate spatial distortions of pointing movements induced by visual landmarks
    Jorn Diedrichsen
    University of California, Berkeley, California, USA
    Percept Psychophys 66:89-103. 2004
    ..We argue that even early memory representations for pointing movements are influenced by visual information in the surrounding visual field...
  81. ncbi Flexible and abstract resolutions to crossmodal conflicts
    Christa Lynn Donovan
    University of British Columbia, Canada
    Brain Cogn 56:1-4. 2004
    ..More importantly, they suggest that interactions between modalities can span to abstract levels of same/different representations...
  82. pmc Roll tilt psychophysics in rhesus monkeys during vestibular and visual stimulation
    Richard F Lewis
    Department of Otolaryngology, Harvard Medical School, Boston, Massachusetts, USA
    J Neurophysiol 100:140-53. 2008
    ....
  83. ncbi Face inversion disrupts the perception of vertical relations between features in the right human occipito-temporal cortex
    Valerie Goffaux
    Maastricht Brain Imaging Centre, University of Maastricht, Maastricht, The Netherlands
    J Neuropsychol 3:45-67. 2009
    ..These findings corroborate the view that the vulnerability of face perception to inversion stems mainly from the disrupted processing of vertical face relations in the right-lateralized network of face-preferring regions (rMFG, rIOG)...
  84. pmc Attention speeds processing across eccentricity: feature and conjunction searches
    Marisa Carrasco
    Department of Psychology, New York University, New York, NY 10003, USA
    Vision Res 46:2028-40. 2006
    ..Interestingly, in contrast to the compensatory effect of covert attention on information processing at iso-eccentric locations (temporal performance fields), covert attention did not eliminate speed differences across eccentricity...
  85. ncbi Spatial interactions in upright and inverted faces: re-exploration of spatial scale influence
    Valerie Goffaux
    Maastricht Brain Imaging Center M BIC, Department of Neurocognition, Faculty of Psychology, University of Maastricht, P O Box 616, 6200 MD, Masstricht, The Netherlands
    Vision Res 49:774-81. 2009
    ..Results further show that spatial interactions are driven by LSF, independently of the spectral properties of the attended face region...
  86. ncbi Monocular texture segmentation and proto-rivalry
    Joshua A Solomon
    Department of Optometry and Visual Science, City University, London EC1V 0HB, UK
    Vision Res 46:1488-92. 2006
    ..The conventional view is that binocular rivalry requires at least 200 ms to develop, but our results suggest a more rapid access to monocular signals. We call this rapid form of access "proto-rivalry."..
  87. ncbi Holistic processing unites face parts across time
    J M Singer
    Brain Sciences Program, Brown University, Box 1953, Providence, RI 02912, USA
    Vision Res 46:1838-47. 2006
    ..We suggest that the processing underlying robust identification accepts an accumulation of evidence over time...
  88. ncbi Configuration influence on crowding
    Tomer Livne
    Department of Neurobiology, The Weizmann Institute of Science, Rehovot, Israel
    J Vis 7:4.1-12. 2007
    ..Our results show that crowding operates at a level where configuration information has already been extracted. We relate all this to the object-based nature of perception...
  89. pmc Contextual illusions reveal the limit of unconscious visual processing
    Julia J Harris
    Department of Neuroscience, University College London, Institute of Cognitive Neuroscience, London WC1N 3BG, United Kingdom
    Psychol Sci 22:399-405. 2011
    ..Our findings show that invisible context is resolvable by low-level processes involved in surface-brightness perception, but not by high-level processes that assign surface borders through perceptual completion...
  90. ncbi High-level face adaptation without awareness
    Wendy J Adams
    School of Psychology, University of Southampton, Southampton SO17 1BJ, United Kingdom
    Psychol Sci 21:205-10. 2010
    ..Here we show that emotional facial expression continues to be processed even under complete suppression, as indexed by substantial facial expression aftereffects...
  91. pmc Identification of contrast-defined letters benefits from perceptual learning in adults with amblyopia
    Susana T L Chung
    College of Optometry and Center for Neuro Engineering and Cognitive Science, University of Houston, Houston, TX, USA
    Vision Res 46:3853-61. 2006
    ....
  92. ncbi Making perceptual learning practical to improve visual functions
    Uri Polat
    Goldschleger Eye Research Institute, Tel Aviv University, Sheba Medical Center, Ramat Gan, 52621 Tel Hashomer, Israel
    Vision Res 49:2566-73. 2009
    ..Thus, perceptual learning can be a practical method to improve visual functions in people with impaired or blurred vision...
  93. ncbi Human MT+ mediates perceptual filling-in during apparent motion
    Taosheng Liu
    Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD 21218, USA
    Neuroimage 21:1772-80. 2004
    ..This overlap suggests that these regions could directly interact and thereby support perceived object continuity during apparent motion...
  94. ncbi Illusory conjunctions are alive and well: a reply to Donk (1999)
    W Prinzmetal
    Department of Psychology, University of California, Berkeley 94720, USA
    J Exp Psychol Hum Percept Perform 27:538-41. 2001
    ..A review of the literature indicates that in many studies, illusory conjunctions do result from a failure to properly integrate features...
  95. ncbi Recent models and findings in visual backward masking: a comparison, review, and update
    B G Breitmeyer
    Department of Psychology, University of Houston, Houston, TX 77204 5341, USA
    Percept Psychophys 62:1572-95. 2000
    ..Besides noting the positive aspects of these models, we also list their problems and suggest changes that may improve them and experiments that can empirically test them...
  96. pmc Letter-recognition and reading speed in peripheral vision benefit from perceptual learning
    Susana T L Chung
    College of Optometry, University of Houston, 505 J D Armistead Bldg, Houston, TX 77204 2020, USA
    Vision Res 44:695-709. 2004
    ..Our results are consistent with the view that the visual span is a bottleneck on reading speed, but a bottleneck that can be increased with practice...
  97. ncbi The attentional field has a Mexican hat distribution
    Notger G Müller
    Cognitive Neurology Unit, Department of Neurology and Brain Imaging Center, Johann Wolfgang Goethe University, Theodor Stern Kai 7, 60590, Frankfurt am Main, Germany
    Vision Res 45:1129-37. 2005
    ..Neuroreport, 15(6), 977-980]. As behavioral performance parallels activity modulation of primary visual cortex but not other areas we propose that perceptual capacities are determined by attentional response properties of V1...
  98. ncbi Extraction of perceptually salient contours by striate cortical networks
    S C Yen
    Department of Bioengineering, University of Pennsylvania, Philadelphia 19104, USA
    Vision Res 38:719-41. 1998
    ..In particular, the model proposes that intrinsic properties of synchronization account for the increased salience of smooth, closed contours. Application of the model to real images is demonstrated...
  99. ncbi Surface orientation from texture: ideal observers, generic observers and the information content of texture cues
    D C Knill
    Department of Psychology, University of Pennsylvania, Philadelphia 19104, USA
    Vision Res 38:1655-82. 1998
    ..The results provide an important computational foundation for psychophysical work on perceiving surface orientation from texture...
  100. ncbi Is second-order spatial loss in amblyopia explained by the loss of first-order spatial input?
    E H Wong
    University of Houston, College of Optometry, The University Eye Institute, 4901 Calhoun Blvd, Houston, TX 77204 6052, USA
    Vision Res 41:2951-60. 2001
    ..The extra second-order loss indicates an early amplification of cortical neural loss that we speculate is due to deficient binocular input to second-order neurons...
  101. ncbi Visual search of expansion and contraction
    T Takeuchi
    Information Science Laboratory, NTT Basic Research Laboratories, Kanagawa, Japan
    Vision Res 37:2083-90. 1997
    ..This asymmetry between expansion and contraction reflects a basic characteristic of higher-order motion information processing...

Research Grants72

  1. Seeing through the Ears
    Alvaro Pascual Leone; Fiscal Year: 2006
    ..DO NOT EXCEED THE SPACE PROVIDED. This is a revised submission of a proposal to use psychophysics and brain imaging to investigate the brain activity associated with the processing of environmental visual ..
  2. Psychophysics of Divalent Salts and Metallic Taste
    HARRY LAWLESS; Fiscal Year: 2006
    ..A primary question of interest is whether metallic taste is olfactory, gustatory or tactile in nature or some combination of the three. ..
  3. Taste psychophysics of bitter phytochemicals
    MIRIAM LINSCHOTEN; Fiscal Year: 2005
    ..Furthermore, food preference data will be gathered. It is anticipated that this study will result in safe and usable ranges of stimulation for each of the phytochemicals, so that in the future data from children can be obtained. ..
  4. BEHAVIORAL & PHYSIOLOGICAL STUDIES OF SOUND LOCALIZATION
    TOM YIN; Fiscal Year: 2005
    ..This application is an effort to link these two approaches by combining animal psychophysics with physiology...
  5. CHEMOSENSORY PERCEPTION AND PSYCHOPHYSICS IN THE AGED
    CLAIRE L MURPHY; Fiscal Year: 2013
    ..2005). Elucidation of age-related changes in brain response to appetitive chemosensory stimuli may suggest avenues to modulate food intake and obesity in middle age, and metabolic disease and cognitive impairment in older adults. ..
  6. Vision Sciences Training Grant
    Carol A Mason; Fiscal Year: 2013
    ..includes 14 faculty focused on the visual and oculomotor systems in humans and monkeys using neurophysiology, psychophysics, computational modeling, and imaging...
  7. Bilateral cochlear implants: Physiology and psychophysics
    Bertrand Delgutte; Fiscal Year: 2012
    ..from the Massachusetts Eye and Ear Infirmary, MIT, and Boston University combine their expertise in psychophysics, neurophysiology and neural computation in order to gain a basic understanding of the ITD processing with ..
  8. Aging Auditory System: Presbycusis and Its Neural Bases
    Robert D Frisina; Fiscal Year: 2013
    ..with experimental approaches ranging from audiology, speech perception, psychoacoustics, evoked potentials and psychophysics in humans, to startle reflex psychology, neurophysiology, evoked potentials, single-unit physiology, ..
  9. Towards the neuronal correlates of visual awareness
    Gabriel Kreiman; Fiscal Year: 2009
    ..We propose to study visual awareness using a combination of neurophysiology, psychophysics and electrical stimulation...
  10. Impact of Receptor Polymorphisms on Sensations from Common Oral Irritants
    JOHN EDWARD HAYES; Fiscal Year: 2013
    ..This proposal represents a collaborative effort between investigators in chemosensory psychophysics, and molecular and quantitative behavioral genetics to examine how genetic variation in taste and pain ..
  11. Impact of exercise training on pain and brain function in Gulf War Veterans
    Dane B Cook; Fiscal Year: 2013
    ..By applying functional neuroimaging techniques in conjunction with pain psychophysics, we will be able to determine how the brains of Veterans with CMP respond to pain and whether these responses ..
  12. Physiological correlates of endogenous pain modulation in healthy individuals and
    Christopher D King; Fiscal Year: 2013
    ..The current proposal extends the candidate's previous background in stress and pain psychophysics with additional training to investigate physiological and psychological factors involved in the ..
  13. Cochlear Implants in Reinnervated Ears
    Yehoash Raphael; Fiscal Year: 2013
    ..temporal integration properties, spatial selectivity, and amplitude growth functions using established animal psychophysics procedures and electrically-induced auditory brainstem responses (EABR) in deaf reinnervated cochleae and deaf ..
  14. Yale Tobacco Center of Regulatory Science
    STEPHANIE S O'MALLEY; Fiscal Year: 2013
    ..The Yale TCORS multidisciplinary team includes experts in chemosensory psychophysics (Barry Green), menthol and irritant receptor biology (Sven Jordt;Green), dopaminergic signaling in brain ..
  15. Neural organization of odor coding in human piriform cortex
    Jay A Gottfried; Fiscal Year: 2010
    ..These studies will be complemented by olfactory psychophysics approaches to assess the behavioral influence of sensory experience and associative learning on odor quality ..
  16. Binocular Summation in Strabismus
    Stacy Pineles; Fiscal Year: 2013
    ..of senior investigators who will jointly provide guidance in strabismus research, epidemiology, and psychophysics The candidate will have the following objectives during the award period: 1) Development of an individual ..
  17. NEURAL NETWORKS FOR SPEECH PERCEPTION IN NOISE
    Lee M Miller; Fiscal Year: 2010
    ..The proposed research uses functional magnetic resonance imaging (fMRI) integrated with psychophysics to address the three factors that determine intelligibility...
  18. Effects of Parkinson's Disease on Perception, Cognition, and Gait
    Alice Cronin-Golomb; Fiscal Year: 2013
    ..we will marshal the expertise of scientists from complementary disciplines, including neuropsychology, visual psychophysics, cognitive neuroscience and neuroimaging, and clinical movement science...
  19. TRAINING IN SPEECH, HEARING, AND SENSORY COMMUNICATION
    David B Pisoni; Fiscal Year: 2013
    ..in areas such as: speech analysis,synthesis and perception;anatomy and physiology of the auditory system;psychophysics of hearing;acoustic and articulatory phonetics;clinical phonology;perceptual development, ..
  20. AUDITORY TEMPORAL PROCESSES, SPEECH PERCEPTION AND AGING
    SANDRA M GORDON-SALANT; Fiscal Year: 2013
    DESCRIPTION (provided by applicant): This research program in speech perception and auditory psychophysics examines the hypothesis that many of the predominant difficulties in speech understanding of elderly listeners are related to ..
  21. GENES AND VISUAL PIGMENTS OF RED-GREEN COLOR VISION
    MAUREEN E NEITZ; Fiscal Year: 2013
    ..with mutations that block them, using the electroretinogram, functional magnetic resonance imaging and visual psychophysics. Specific Aim 2: To isolate and study specific components of chromatic pathways in animal models using ..
  22. Binocular Approaches to Perceptual Learning in Adult Amblyopia
    CRISTINA LLERENA LAW; Fiscal Year: 2013
    ..resources and skills to test this hypothesis, using a comprehensive analysis of visual functions, including psychophysics and physiology, and to track changes in visual function at key milestones during the experiment...
  23. Neuroscience Training at University of Connecticut Health Center
    ELIZABETH A EIPPER; Fiscal Year: 2010
    ..such as substance abuse will be our ability to integrate information from disciplines as diverse as human psychophysics and molecular neurobiology...
  24. Understanding feature-based auditory-visual interactions.
    Satoru Suzuki; Fiscal Year: 2013
    ..To understand these interactions, we will combine psychophysics and computational modeling (AIM 1) to determine how associated sounds influence basic mechanisms of visual ..
  25. Visual psychophysics of human face processing
    Ken Nakayama; Fiscal Year: 2012
    ..We propose to develop behavioral tests to diagnose and characterize prosopagnosia in adults and in children. In addition, we will determine the efficacy of a new training method to ameliorate the effects of this serious condition. ..
  26. Short Term Research Training at the New England College of Optometry
    Jane E Gwiazda; Fiscal Year: 2013
    ..Their research areas include anatomy, pathophysiology, biochemistry, psychophysics, retinal imaging, epidemiology, and clinical research...
  27. Interaction of Smoking and Chronic Pain at Neurochemical and Phenotypic Levels
    Jon Kar Zubieta; Fiscal Year: 2013
    ..Neurobiological responses will then be related to pain psychophysics and measures related to nicotine dependence (e.g., craving)...
  28. Serotonergic modulation of taste
    Clare M Mathes; Fiscal Year: 2011
    ..provided by applicant): The goal ofthis application is to provide specialized training in animal taste psychophysics, a field which is indispensablle in linking neurobiological mechanisms of the gustatory system to behaviorally ..
  29. Short-term Training Students in Health Professional Schools
    Kenneth Joseph Ciuffreda; Fiscal Year: 2013
    ..Research Areas include: (1) Oculomotor system (2) Psychophysics (3) Biochemistry/physiology...
  30. The neurophysiology of sensory processing and multisensory integration in ASD
    Natalie Russo; Fiscal Year: 2013
    ..These include a small number of psychophysics studies that report that, compared with neurotypical individuals, persons with ASD demonstrate a specific ..
  31. Near Infrared Detector for Advanced Ophthalmology
    Richard Myers; Fiscal Year: 2013
    ..scanning laser ophthalmoscopy has proven to be an important technique for studies of microperimetry, psychophysics and visual neuroscience by imaging the cone mosaic while simultaneously delivering stimuli to single cones...
  32. ROC Studies of Visual Working Memory
    Weiwei Zhang; Fiscal Year: 2011
    ..development of the applicant, who seeks to develop an independent research program that combines quantitative psychophysics and translational approaches to study normal and abnormal memory functioning...
  33. P-30 Core Grant for Vision Research
    David H Brainard; Fiscal Year: 2013
    ..function in awake-behaving primates, cognitive neuroscience of vision, computational modeling, and visual psychophysics. The core grant will support 5 modules: Biostatistics provides expert assistance in experimental design and ..
  34. RESEARCH ON NORMAL AND ABNORMAL MECHANISMS OF VISION
    Larry A Palmer; Fiscal Year: 2013
    ..genetics);eye (cataract, myopia, tears);central pathways (physiology, computation);higher processes (psychophysics, cognitive neuroscience, computation);retinal diseases and new genetic therapeutics...
  35. GRADUATE TRAINING IN NEUROSCIENCE
    Matthew N Rasband; Fiscal Year: 2013
    ..projects in behavior, development, biochemistry, electrophysiology, biophysics, molecular biology, photonics, psychophysics, large scale neuronal network analysis, computational neuroscience and brain disease...
  36. Control of Attention by Working Memory
    Steven J Luck; Fiscal Year: 2013
    ..We will use a combination of eye tracking, event-related potentials (ERPs), and psychophysics so that we can precisely determine whether attention is covertly and overtly directed toward items that either ..
  37. Training Program in Multisensory Processes
    Barry E Stein; Fiscal Year: 2013
    ..modern neuroanatomy and immunohistochemistry, computational neuroscience, development, cognition, psychophysics, behavior, and hands-on experience with a variety of laboratory techniques...
  38. Cognitive Bases of Risk-taking Over the Lifespan: Psychophysics &Brain Imaging
    Ifat Levy; Fiscal Year: 2013
    ....
  39. VISION SUBSTITUTION THROUGH THE TONGUE
    Aimee Arnoldussen; Fiscal Year: 2009
    ..blind persons to extract meaningful information with frequent use of a wearable, user friendly and slightly higher resolution version of the present system will occur in parallel with the technology optimization and psychophysics.
  40. HOW DOES ATTENTION ALTER APPEARANCE? PSYCHOPHYSICS AND NEUROPHYSIOLOGY
    Katharina Anton-Erxleben; Fiscal Year: 2013
    ..Such basic research lays the foundation to develop clinical applications to treat attention-related disorders, for example unilateral neglect or Attention-Deficit Hyperactivity Disorder (ADHD). ..
  41. Warmth enhancement of itch via TRPV4
    Tasuku Akiyama; Fiscal Year: 2013
    ..calcium imaging and immunohistochemistry of sensory neurons, electrophysiology recording, and human psychophysics to investigate mechanisms underlying the enhancement of itch by innocuous skin warming...
  42. Retinal topography and the mechanisms of visual perception
    HEIDI JEAN HOFER; Fiscal Year: 2012
    ..We propose a series of experiments using a novel combination of imaging, psychophysics, and modeling in the same living human subjects to determine how individual L, M, and S cones are arranged ..
  43. Behavioral and neural mechanisms of visual short-term memory
    WHEE KY MA; Fiscal Year: 2013
    ..This research proposal relies in an essential way on integrating psychophysics with neuroscience...
  44. Microsurgical In-Situ Image Guidance with Optical Coherence Tomography
    George D Stetten; Fiscal Year: 2013
    ..clinical trials successfully demonstrating the placement of deep vascular catheters, and a substantial body of psychophysics research validating the approach...
  45. Neural Mechanisms of Object Recognition
    Daniel Yoshor; Fiscal Year: 2009
    ..clinical neurophysiology applied in the operating room, and a senior neuropsychologist with expertise in human psychophysics. By enhancing our understanding of how the brain creates behaviorally relevant representations of the visual ..
  46. Vestibular Prosthesis Tested in a Vestibulopathic Model
    Richard F Lewis; Fiscal Year: 2012
    ..We intend to characterize postural control, tilt psychophysics, and the vestibulo-ocular reflex in normal rhesus monkeys, and then to ablate vestibular function in both ears ..
  47. VESTIBULAR INFLUENCES ON SPATIAL ORIENTATION AND VISUOSPATIAL CONSTANCY
    Dora Angelaki; Fiscal Year: 2013
    ..Using quantitative human psychophysics, here we test the hypothesis that vestibular information can be used by the brain to solve the flow parsing ..
  48. GABA deficit hypothesis of impaired visual inhibition in schizophrenia
    Jong H Yoon; Fiscal Year: 2011
    ..We will apply the sophisticated experimental designs and methods utilized in visual psychophysics to control for generalized deficits and to identify a specific deficit in cognitive inhibition in visual ..
  49. CORE GRANT FOR VISION RESEARCH
    Richard H Kramer; Fiscal Year: 2013
    ..history, having contributed many seminal discoveries in the fields of visual system development, physiology, psychophysics, and pathology...
  50. Spatiotemporal mapping of auditory attention using multimodal imaging
    ADRIAN KC LEE; Fiscal Year: 2010
    ..while bringing to the field his knowledge in speech and hearing sciences, particularly his quantitative psychophysics training. The mentored phase will be performed at the MGH-Harvard-MIT Martinos Center for Biomedical Imaging...
  51. Role of Cortex and Cerebellum in Visually-Guided Motor Behavior
    David E Vaillancourt; Fiscal Year: 2011
    ..This proposal will implement carefully- constructed motor psychophysics paradigms that we have previously established behaviorally to manipulate temporal and spatial dimensions of ..
  52. Function of fixational instability during natural viewing
    Michele Rucci; Fiscal Year: 2013
    ..coding of visual information and elucidate encoding/decoding mech- anisms, this project integrates visual psychophysics in humans, statistical and computational analysis of retinal input, and neural modeling...
  53. Development of Face Perception and Recognition
    Kalanit Grill Spector; Fiscal Year: 2009
    ..We will determine: (1) which behavioral aspects of face processing mature after age 7, using psychophysics;(2) whether the maturation of the FFA occurs in tandem with (or lags) maturation of early and/or higher order ..
  54. Integrated Imaging of Brain Function at 7 Tesla
    John C Gore; Fiscal Year: 2012
    ..Physics and Engineering);Malcolm Avison (Developments in Magnetic Resonance Spectroscopy);Frank Tong (Visual Psychophysics, developing advanced methods of assessing the functional architecture of the cortex);Benoit Dawant (Image ..
  55. RESEARCH TRAINING IN VISUAL SCIENCES
    Samuel M Wu; Fiscal Year: 2013
    ..biochemistry, developmental biology, structural and computational biology, cell biology neurophysiology, and psychophysics. The nineteen preceptors'research covers almost the entire visual system (lens and cornea, retina, LGN, ..
  56. Neural correlates of hearing in noise
    SUBHASH SHARATH BENNUR; Fiscal Year: 2013
    ..Despite a large and important literature on the psychophysics of hearing in noisy backgrounds and the responses of neurons to sounds in noisy backgrounds, the most ..
  57. A Texture Analysis/Synthesis Model of Visual Crowding
    Ruth Rosenholtz; Fiscal Year: 2010
    ..will attack the problem of crowding through a useful synthesis of computer graphics, computer vision, and psychophysics. PUBLIC HEALTH RELEVANCE: Understanding crowding, besides elucidating representations and performance of ..
  58. AUDITORY TEMPORAL PROCESSES, SPEECH PERCEPTION AND AGING
    SANDRA M GORDON-SALANT; Fiscal Year: 2012
    The project proposes a program of studies in speech perception and auditory psychophysics to examine the hypothesis that many of the predominant difficulties in speech understanding for elderly listeners are related to underlying ..
  59. Measuring and predicting visual field progression with longitudinal-survival CART
    Richard A Levine; Fiscal Year: 2010
    ..through applications of novel classification and regression tree (CART) methods to data from the perimetry and psychophysics in glaucoma (PPIG) study...
  60. Traveling waves in visual cortex during binocular rivalry
    David Heeger; Fiscal Year: 2009
    ..The proposed experiments will apply a combination of empirical methods (psychophysics and fMRI in humans;optical imaging, electrophysiology, pharmacology, and electrical stimulation in the awake ..
  61. VISUAL NEUROSCIENCE TRAINING PROGRAM
    Donald J Zack; Fiscal Year: 2013
    ..molecular biology, biochemistry, developmental neurobiology, electrophysiology, functional imaging, and psychophysics. The diverse nature of the vision research community at Hopkins provides a wide variety of research options ..
  62. Experimental and Clinical Investigations of Retinal Stimulation
    JAMES DAVID WEILAND; Fiscal Year: 2013
    ..The ability to perceive complex shapes has been difficult for manyh implant patients. Recent psychophysics testing has shown that many single- electrode percepts are elongated, extending beyond what would be expected ..
  63. Spatiotemporal mapping of auditory attention using multimodal imaging
    ADRIAN KC LEE; Fiscal Year: 2013
    ..while bringing to the field his knowledge in speech and hearing sciences, particularly his quantitative psychophysics training...
  64. ROLE OF THE SACCADIC EYE-MOVEMENT COROLLARY DISCHARGE IN STABLE VISUAL PERCEPTION
    Wilsaan M Joiner; Fiscal Year: 2013
    ..The research uses human psychophysics and the known neuroanatomy of the saccadic eye-movement system to dissect the way the brain continuously ..
  65. Neural mechanisms of perceptual localization
    DAVID V WHITNEY; Fiscal Year: 2013
    ..We will use psychophysics to test these predicted double dissociations in perceived location and then use TMS to test the causal ..
  66. Cortical dynamics in autism
    Chris P Said; Fiscal Year: 2012
    ..immersion in ASD research and the opportunity to work directly with ASD participants;(b) rigorous training in psychophysics and computational modeling. The proposed project is fully in line with the NIMH mission...
  67. Assessing space and feature based attention with fMRI and multivoxel pattern anal
    John Serences; Fiscal Year: 2010
    ..To test predictions generated by the model, we use a combination of psychophysics and novel multivariate functional magnetic resonance imaging (fMRI) analysis techniques that are sensitive to ..
  68. INFORMATION PROCESSING BY THE AUDITORY SYSTEM
    WILLIAM YOST; Fiscal Year: 2002
    ..refers to the investigators' use of different techniques (anatomy, physiology, animals and human behavior/psychophysics, and modeling), different animal models (fish, chinchilla, and humans), and different hair cell systems refers ..
  69. PAIN MEASUREMENT IN BONE MARROW TRANSPLANTATION
    Mark Schubert; Fiscal Year: 2000
    ..The investigators propose to develop competing multidimensional pain measurement methods derived from psychophysics and psychometrics and to compare these methods with their existing unidimensional method as well as with one ..
  70. Psychophysics of speech processor modifications in cochlear implants
    Jong Ho Won; Fiscal Year: 2010
    ..The main point of the proposed study is to address the effect of sound processors on the ability of cochlear implant users to hear acoustic changes that are relevant to their clinical success. ..
  71. IMPROVED COCHLEAR IMPLANTS PSYCHOPHYSICS & ENGINEERING
    Graeme Clark; Fiscal Year: 1993
    ..Ca. The integrated circuit will be packaged into an implantable receiver- stimulator under contract to Cochlear Pty. Limited, Sydney...
  72. HUMAN COLOR VISION: PSYCHOPHYSICS & MOLECULAR
    THOMAS PIANTANIDA; Fiscal Year: 1990
    ....