visual perception

Summary

Summary: The selecting and organizing of visual stimuli based on the individual's past experience.

Top Publications

  1. ncbi Effects of attention and emotion on face processing in the human brain: an event-related fMRI study
    P Vuilleumier
    Institute of Cognitive Neuroscience, University College London, England, London, United Kingdom
    Neuron 30:829-41. 2001
  2. pmc Activation of specific interneurons improves V1 feature selectivity and visual perception
    Seung Hee Lee
    Division of Neurobiology, Department of Molecular and Cell Biology, Helen Wills Neuroscience Institute, University of California, Berkeley, California 94720, USA
    Nature 488:379-83. 2012
  3. ncbi Computational modelling of visual attention
    L Itti
    Hedco Neuroscience Building, University of Southern California, 3641 Watt Way, Los Angeles, California 90089 2520, USA
    Nat Rev Neurosci 2:194-203. 2001
  4. ncbi Beyond mind-reading: multi-voxel pattern analysis of fMRI data
    Kenneth A Norman
    Department of Psychology, Princeton University, Green Hall, Washington Road, Princeton, NJ 08540, USA
    Trends Cogn Sci 10:424-30. 2006
  5. ncbi Decoding mental states from brain activity in humans
    John Dylan Haynes
    Max Planck Institute for Cognitive and Brain Sciences, Stephanstrasse 1a, 04103 Leipzig, Germany
    Nat Rev Neurosci 7:523-34. 2006
  6. ncbi The time course of perceptual choice: the leaky, competing accumulator model
    M Usher
    Department of Psychology, Birkbeck College, University of London, England
    Psychol Rev 108:550-92. 2001
  7. ncbi The capacity of visual working memory for features and conjunctions
    S J Luck
    Department of Psychology, University of Iowa, Iowa City 52242 1407, USA
    Nature 390:279-81. 1997
  8. ncbi Entrainment of neuronal oscillations as a mechanism of attentional selection
    Peter Lakatos
    Cognitive Neuroscience and Schizophrenia Program, Nathan Kline Institute, Orangeburg, NY 10962, USA
    Science 320:110-3. 2008
  9. pmc Gaze cueing of attention: visual attention, social cognition, and individual differences
    Alexandra Frischen
    Macquarie Centre for Cognitive Science, Macquarie University, Sydney, NSW, Australia
    Psychol Bull 133:694-724. 2007
  10. pmc To see or not to see: prestimulus alpha phase predicts visual awareness
    Kyle E Mathewson
    Department of Psychology and Beckman Institute, University of Illinois at Urbana Champaign, Urbana, Illinois 61801, USA
    J Neurosci 29:2725-32. 2009

Detail Information

Publications294 found, 100 shown here

  1. ncbi Effects of attention and emotion on face processing in the human brain: an event-related fMRI study
    P Vuilleumier
    Institute of Cognitive Neuroscience, University College London, England, London, United Kingdom
    Neuron 30:829-41. 2001
    ....
  2. pmc Activation of specific interneurons improves V1 feature selectivity and visual perception
    Seung Hee Lee
    Division of Neurobiology, Department of Molecular and Cell Biology, Helen Wills Neuroscience Institute, University of California, Berkeley, California 94720, USA
    Nature 488:379-83. 2012
    ..Together, these results provide the first demonstration that visual coding and perception can be improved by increased spiking of a specific subtype of cortical inhibitory interneurons...
  3. ncbi Computational modelling of visual attention
    L Itti
    Hedco Neuroscience Building, University of Southern California, 3641 Watt Way, Los Angeles, California 90089 2520, USA
    Nat Rev Neurosci 2:194-203. 2001
    ..Insights from these five key areas provide a framework for a computational and neurobiological understanding of visual attention...
  4. ncbi Beyond mind-reading: multi-voxel pattern analysis of fMRI data
    Kenneth A Norman
    Department of Psychology, Princeton University, Green Hall, Washington Road, Princeton, NJ 08540, USA
    Trends Cogn Sci 10:424-30. 2006
    ..We review how researchers are using MVPA methods to characterize neural coding and information processing in domains ranging from visual perception to memory search.
  5. ncbi Decoding mental states from brain activity in humans
    John Dylan Haynes
    Max Planck Institute for Cognitive and Brain Sciences, Stephanstrasse 1a, 04103 Leipzig, Germany
    Nat Rev Neurosci 7:523-34. 2006
    ..Such 'brain reading' has mostly been studied in the domain of visual perception, where it helps reveal the way in which individual experiences are encoded in the human brain...
  6. ncbi The time course of perceptual choice: the leaky, competing accumulator model
    M Usher
    Department of Psychology, Birkbeck College, University of London, England
    Psychol Rev 108:550-92. 2001
    ....
  7. ncbi The capacity of visual working memory for features and conjunctions
    S J Luck
    Department of Psychology, University of Iowa, Iowa City 52242 1407, USA
    Nature 390:279-81. 1997
    ....
  8. ncbi Entrainment of neuronal oscillations as a mechanism of attentional selection
    Peter Lakatos
    Cognitive Neuroscience and Schizophrenia Program, Nathan Kline Institute, Orangeburg, NY 10962, USA
    Science 320:110-3. 2008
    ..These instrumental functions of low-frequency oscillations support a conceptual framework that integrates numerous earlier findings...
  9. pmc Gaze cueing of attention: visual attention, social cognition, and individual differences
    Alexandra Frischen
    Macquarie Centre for Cognitive Science, Macquarie University, Sydney, NSW, Australia
    Psychol Bull 133:694-724. 2007
    ..The contribution of this paradigm has been significant and will likely continue to advance knowledge across diverse fields within psychology and neuroscience...
  10. pmc To see or not to see: prestimulus alpha phase predicts visual awareness
    Kyle E Mathewson
    Department of Psychology and Beckman Institute, University of Illinois at Urbana Champaign, Urbana, Illinois 61801, USA
    J Neurosci 29:2725-32. 2009
    ..A novel theory of cortical inhibition is proposed in which increased alpha power represents a "pulsed inhibition" of cortical activity that affects visual awareness...
  11. ncbi Merging the senses into a robust percept
    Marc O Ernst
    Max Planck Institut für biologische Kybernetik, Tubingen, Germany
    Trends Cogn Sci 8:162-9. 2004
    ..We show that, depending on the type of information, different combination and integration strategies are used and that prior knowledge is often required for interpreting the sensory signals...
  12. ncbi Prestimulus oscillations predict visual perception performance between and within subjects
    Simon Hanslmayr
    Department of Experimental Psychology, Regensburg University, 93040 Regensburg, Germany
    Neuroimage 37:1465-73. 2007
    ..perception of shortly presented stimuli whereas synchrony in higher frequency ranges (>20 Hz) enhances visual perception. We conclude that alpha, beta and gamma oscillations indicate the attentional state of a subject and thus ..
  13. pmc Decoding reveals the contents of visual working memory in early visual areas
    Stephenie A Harrison
    Psychology Department and Vanderbilt Vision Research Center, Vanderbilt University, Nashville, Tennessee 37240, USA
    Nature 458:632-5. 2009
    ..Our results demonstrate that early visual areas can retain specific information about visual features held in working memory, over periods of many seconds when no physical stimulus is present...
  14. ncbi Capacity limit of visual short-term memory in human posterior parietal cortex
    J Jay Todd
    Vanderbilt Vision Research Center, Department of Psychology, Vanderbilt University, 530 Wilson Hall, Nashville, Tennessee 37203, USA
    Nature 428:751-4. 2004
    ..These results suggest that the posterior parietal cortex is a key neural locus of our impoverished mental representation of the visual world...
  15. ncbi Load theory of selective attention and cognitive control
    Nilli Lavie
    Department of Psychology, University College London, London, United Kingdom
    J Exp Psychol Gen 133:339-54. 2004
    ..This theory resolves the long-standing early versus late selection debate and clarifies the role of cognitive control in selective attention...
  16. ncbi Visual competition
    Randolph Blake
    Vanderbilt Vision Research Center, Vanderbilt University, Nashville, Tennessee 37203, USA
    Nat Rev Neurosci 3:13-21. 2002
    ..Although unanswered questions remain, this view of rivalry might allow us to resolve some of the controversies and apparent contradictions that have emerged from its study...
  17. pmc Identifying natural images from human brain activity
    Kendrick N Kay
    Department of Psychology, University of California, Berkeley, California 94720, USA
    Nature 452:352-5. 2008
    ..Our results suggest that it may soon be possible to reconstruct a picture of a person's visual experience from measurements of brain activity alone...
  18. ncbi Recalibration of audiovisual simultaneity
    Waka Fujisaki
    NTT Communication Science Laboratories, NTT Corporation, 3 1 Morinosato Wakamiya, Atsugi, Kanagawa 243 0198, Japan
    Nat Neurosci 7:773-8. 2004
    ..Our findings suggest that the brain attempts to adjust subjective simultaneity across different modalities by detecting and reducing time lags between inputs that likely arise from the same physical events...
  19. pmc Spontaneous EEG oscillations reveal periodic sampling of visual attention
    Niko A Busch
    Institute of Medical Psychology, Charite Universitatsmedizin, 10099 Berlin, Germany
    Proc Natl Acad Sci U S A 107:16048-53. 2010
    ..This fluctuation was absent for unattended stimuli. This pattern of results suggests that "sustained" attention in fact exerts its facilitative effect on perception in a periodic fashion...
  20. pmc Affective picture processing: an integrative review of ERP findings
    Jonas K Olofsson
    Department of Psychology, Umea University, Umea, Sweden
    Biol Psychol 77:247-65. 2008
    ..Theoretical issues, stimulus factors, task demands, and individual differences are discussed...
  21. pmc Top-down facilitation of visual recognition
    M Bar
    Martinos Center at Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
    Proc Natl Acad Sci U S A 103:449-54. 2006
    ..Taken together, the dynamics we revealed provide strong support for the proposal of how top-down facilitation of object recognition is initiated, and our observations are used to derive predictions for future research...
  22. ncbi The ventriloquist effect results from near-optimal bimodal integration
    David Alais
    Istituto di Neuroscienze del CNR, Pisa, Italy
    Curr Biol 14:257-62. 2004
    ..All the results are well explained not by one sense capturing the other, but by a simple model of optimal combination of visual and auditory information...
  23. ncbi Unconscious facial reactions to emotional facial expressions
    U Dimberg
    Department of Psychology, Uppsala University, Box 1225, S 751 42 Uppsala, Sweden
    Psychol Sci 11:86-9. 2000
    ..Our results show that both positive and negative emotional reactions can be unconsciously evoked, and particularly that important aspects of emotional face-to-face communication can occur on an unconscious level...
  24. ncbi On the role of prestimulus alpha rhythms over occipito-parietal areas in visual input regulation: correlation or causation?
    Vincenzo Romei
    Centre for Cognitive Neuroimaging, Department of Psychology, University of Glasgow, Glasgow G12 8QB, UK
    J Neurosci 30:8692-7. 2010
    ..This shows that the posterior alpha rhythm is actively involved in shaping forthcoming perception and, hence, constitutes a substrate rather than a mere correlate of visual input regulation...
  25. ncbi View from the top: hierarchies and reverse hierarchies in the visual system
    Shaul Hochstein
    Department of Neurobiology, Neural Computation Center, Hebrew University, Jerusalem, Israel
    Neuron 36:791-804. 2002
    ..Search for conjunctions or fine discriminations depends on reentry to low-level specific receptive fields using serial focused attention, consistent with recently reported primary visual cortex effects...
  26. ncbi Adaptation to natural facial categories
    Michael A Webster
    Department of Psychology, University of Nevada, Reno, Nevada 89557, USA
    Nature 428:557-61. 2004
    ....
  27. ncbi Time course of visual perception: coarse-to-fine processing and beyond
    Jay Hegdé
    Department of Psychology, University of Minnesota, 75 East River Parkway, Minneapolis, MN 55455, USA
    Prog Neurobiol 84:405-39. 2008
    ..Characterizing these inferential steps from the computational, perceptual and neural standpoints will be a key part of future work in this emerging field...
  28. ncbi Anticipatory biasing of visuospatial attention indexed by retinotopically specific alpha-band electroencephalography increases over occipital cortex
    M S Worden
    Department of Neurology, Albert Einstein College of Medicine, Bronx, New York 10461, USA
    J Neurosci 20:RC63. 2000
    ..The focus of alpha-band activity also moved depending on whether cued locations were in the upper or lower field. Results are consistent with active gating of uncued spatial locations...
  29. pmc Attention alters appearance
    Marisa Carrasco
    Department of Psychology, New York University, 6 Washington Place, New York, New York 10003, USA
    Nat Neurosci 7:308-13. 2004
    ..These behavioral results are consistent with neurophysiological findings suggesting that attention changes the strength of a stimulus by increasing its 'effective contrast' or salience...
  30. pmc When the brain changes its mind: interocular grouping during binocular rivalry
    I Kovacs
    Laboratory of Vision Research, Rutgers University, Piscataway, NJ 08854, USA
    Proc Natl Acad Sci U S A 93:15508-11. 1996
    ..This result is in agreement with recent neurophysiological and psychophysical evidence demonstrating that there is more to binocular rivalry than mere eye competition...
  31. ncbi Natural image statistics and neural representation
    E P Simoncelli
    Howard Hughes Medical Institute, Center for Neural Science, and Courant Institute of Mathematical Sciences, New York University, New York, NY 10003 USA
    Annu Rev Neurosci 24:1193-216. 2001
    ....
  32. ncbi Parietal lobe: from action organization to intention understanding
    Leonardo Fogassi
    Dipartimento di Psicologia, Universita di Parma, Borgo Carissimi 10, 43100 Parma, Italy
    Science 308:662-7. 2005
    ..Thus, these neurons not only code the observed motor act but also allow the observer to understand the agent's intentions...
  33. pmc The normalization model of attention
    John H Reynolds
    Salk Institute for Biological Studies, La Jolla, CA 92037 1099, USA
    Neuron 61:168-85. 2009
    ....
  34. ncbi My body in the brain: a neurocognitive model of body-ownership
    Manos Tsakiris
    Department of Psychology, Royal Holloway, University of London, Egham, Surrey, UK
    Neuropsychologia 48:703-12. 2010
    ....
  35. pmc Decoding the visual and subjective contents of the human brain
    Yukiyasu Kamitani
    ATR Computational Neuroscience Laboratories, 2 2 2 Hikaridai, Keihanna Science City, Kyoto 619 0288, Japan
    Nat Neurosci 8:679-85. 2005
    ..Our approach provides a framework for the readout of fine-tuned representations in the human brain and their subjective contents...
  36. ncbi Bayesian reconstruction of natural images from human brain activity
    Thomas Naselaris
    Helen Wills Neuroscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA
    Neuron 63:902-15. 2009
    ..We also demonstrate that much of the variance in the responses of anterior visual areas to complex natural images is explained by the semantic category of the image alone...
  37. pmc Dynamic shifts of limited working memory resources in human vision
    Paul M Bays
    Institute of Cognitive Neuroscience, University College London, 17 Queen Square, London WC1N 3AR, UK
    Science 321:851-4. 2008
    ..The proportion of resources allocated to each item determines the precision with which it is remembered, a relation that we show is governed by a simple power law, allowing quantitative estimates of resource distribution in a scene...
  38. pmc Effect before cause: supramodal recalibration of sensorimotor timing
    James Heron
    Bradford School of Optometry and Vision Science, University of Bradford, Bradford, United Kingdom
    PLoS ONE 4:e7681. 2009
    ....
  39. ncbi Going beyond LTM in the MTL: a synthesis of neuropsychological and neuroimaging findings on the role of the medial temporal lobe in memory and perception
    Kim S Graham
    Wales Institute of Cognitive Neuroscience, School of Psychology, Cardiff University, Tower Building, Park Place, Cardiff CF10 3AT, UK
    Neuropsychologia 48:831-53. 2010
    ..The limitations and criticisms of this theory are discussed and a number of outstanding questions proposed, including key predictions that can be tested by future studies...
  40. ncbi Integrated model of visual processing
    J Bullier
    Centre de Recherche Cerveau et Cognition CNRS UPS, Universite Paul Sabatier, 133 route de Narbonne, 31062, Cedex 4, Toulouse, France
    Brain Res Brain Res Rev 36:96-107. 2001
    ....
  41. ncbi The phase of ongoing EEG oscillations predicts visual perception
    Niko A Busch
    Universite de Toulouse, Centre de Recherche Cerveau et Cognition, Universite Paul Sabatier, France
    J Neurosci 29:7869-76. 2009
    ..The results support the notion that ongoing oscillations shape our perception, possibly by providing a temporal reference frame for neural codes that rely on precise spike timing...
  42. ncbi Seeing or doing? Influence of visual and motor familiarity in action observation
    Beatriz Calvo-Merino
    Institute of Cognitive Neuroscience and Department of Psychology, University College London, 17 Queen Square, WC1N 3AR London, United Kingdom
    Curr Biol 16:1905-10. 2006
    ..We understand actions not only by visual recognition, but also motorically. In addition, we confirm that the cerebellum is part of the action observation network...
  43. ncbi Neural activity predicts individual differences in visual working memory capacity
    Edward K Vogel
    Department of Psychology, University of Oregon, Eugene, Oregon 97403 1227, USA
    Nature 428:748-51. 2004
    ..Consequently, this measure provides a strong neurophysiological predictor of an individual's capacity, allowing the demonstration of a direct relationship between neural activity and memory capacity...
  44. ncbi Visual fixation patterns during viewing of naturalistic social situations as predictors of social competence in individuals with autism
    Ami Klin
    Yale Child Study Center, Yale University, 230 S Frontage Rd, New Haven, CT 06520, USA
    Arch Gen Psychiatry 59:809-16. 2002
    ..Enhanced ecological validity was intended to maximize between-group effect sizes and assess the predictive utility of experimental variables relative to outcome measures of social competence...
  45. ncbi Distributed and interactive brain mechanisms during emotion face perception: evidence from functional neuroimaging
    Patrik Vuilleumier
    Laboratory for Behavioral Neurology and Imaging of Cognition, Clinic of Neurology, University Hospital of Geneva, Geneva, Switzerland
    Neuropsychologia 45:174-94. 2007
    ..The functional implications of these interactions remain to be fully explored, but might play an important role in the normal development of face processing skills and in some neuropsychiatric disorders...
  46. pmc Visual speech speeds up the neural processing of auditory speech
    Virginie van Wassenhove
    Neuroscience and Cognitive Science Program and Department of Biology, University of Maryland, College Park, MD 20742, USA
    Proc Natl Acad Sci U S A 102:1181-6. 2005
    ..This is evidence for the existence of an "analysis-by-synthesis" mechanism in auditory-visual speech perception...
  47. pmc Emotion facilitates perception and potentiates the perceptual benefits of attention
    Elizabeth A Phelps
    Department of Psychology and Center for Neural Science, New York University, NY 10003, USA
    Psychol Sci 17:292-9. 2006
    ..This study provides the first behavioral evidence that (a) emotion enhances contrast sensitivity irrespective of attention and (b) emotion potentiates the effect of attention on contrast sensitivity...
  48. ncbi Structure and function of visual area MT
    Richard T Born
    Department of Neurobiology, Harvard Medical School, Boston, MA 02115 5701, USA
    Annu Rev Neurosci 28:157-89. 2005
    ..Here we attempt a synthetic overview of the rich literature on MT with the goal of answering the question, What does MT do?..
  49. pmc Causal role of the prefrontal cortex in top-down modulation of visual processing and working memory
    Theodore P Zanto
    Department of Neurology, University of California, San Francisco, San Francisco, California, USA
    Nat Neurosci 14:656-61. 2011
    ..These results suggest that top-down modulation mediated by the prefrontal cortex is a causal link between early attentional processes and subsequent memory performance...
  50. ncbi Enduring interest in perceptual ambiguity: alternating views of reversible figures
    Gerald M Long
    Department of Psychology, Villanova University, Villanova, PA 19085, USA
    Psychol Bull 130:748-68. 2004
    ....
  51. ncbi Do we know what the early visual system does?
    Matteo Carandini
    Smith Kettlewell Eye Research Institute, San Francisco, California 94115, USA
    J Neurosci 25:10577-97. 2005
    ..They would be an invaluable guide for understanding the underlying biophysical and anatomical mechanisms and relating neural responses to visual perception.
  52. pmc Spatial and temporal scales of neuronal correlation in primary visual cortex
    Matthew A Smith
    Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
    J Neurosci 28:12591-603. 2008
    ..These properties and the circuit mechanism they imply provide new constraints on the functional role that correlation may play in visual processing...
  53. ncbi The emulation theory of representation: motor control, imagery, and perception
    Rick Grush
    Department of Philosophy, University of California, San Diego, La Jolla, CA 92093 0119, USA
    Behav Brain Sci 27:377-96; discussion 396-442. 2004
    ..I also show how such systems can provide for amodal spatial imagery. Perception, including visual perception, results from such models being used to form expectations of, and to interpret, sensory input...
  54. ncbi Modulation of oscillatory neuronal synchronization by selective visual attention
    P Fries
    Laboratory of Neuropsychology, National Institute of Mental Health, National Institutes of Health, Building 49, Room 1B80, 9000 Rockville Pike, Bethesda, MD 20892 4415, USA
    Science 291:1560-3. 2001
    ..Because postsynaptic integration times are short, these localized changes in synchronization may serve to amplify behaviorally relevant signals in the cortex...
  55. ncbi Mechanisms of visual attention in the human cortex
    S Kastner
    Laboratory of Brain and Cognition, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
    Annu Rev Neurosci 23:315-41. 2000
    ..Although the competition among stimuli for representation is ultimately resolved within visual cortex, the source of top-down biasing signals derives from a network of areas in frontal and parietal cortex...
  56. ncbi Let's face it: it's a cortical network
    Alumit Ishai
    Institute of Neuroradiology, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
    Neuroimage 40:415-9. 2008
    ..A model for face perception is proposed, in which the flow of information through the network is shaped by cognitive demands...
  57. ncbi Neural correlates of perceptual rivalry in the human brain
    E D Lumer
    Wellcome Department of Cognitive Neurology, Institute of Neurology, University College London, Queen Square, London WC1N 3BG, UK
    Science 280:1930-4. 1998
    ..These results suggest that frontoparietal areas play a central role in conscious perception, biasing the content of visual awareness toward abstract internal representations of visual scenes, rather than simply toward space...
  58. pmc A century of Gestalt psychology in visual perception: I. Perceptual grouping and figure-ground organization
    Johan Wagemans
    University of Leuven KU Leuven, Laboratory of Experimental Psychology, Tiensestraat 102, Box 3711, BE 3000 Leuven, Belgium
    Psychol Bull 138:1172-217. 2012
    ..A better integration of this research tradition with the rest of vision science requires further progress regarding the conceptual and theoretical foundations of the Gestalt approach, which is the focus of a second review article...
  59. ncbi Fast readout of object identity from macaque inferior temporal cortex
    Chou P Hung
    McGovern Institute for Brain Research, Cambridge, MA 02139, USA
    Science 310:863-6. 2005
    ..This information generalized over a range of object positions and scales, even for novel objects. Coarse information about position and scale could also be read out from the same population...
  60. pmc Discrete fixed-resolution representations in visual working memory
    Weiwei Zhang
    Department of Psychology, University of Iowa, Iowa City, Iowa 52242, USA
    Nature 453:233-5. 2008
    ..Memory resolution varied over a narrow range that cannot be explained in terms of a general resource pool but can be well explained by a small set of discrete, fixed-resolution representations...
  61. ncbi A specific neural substrate for perceiving facial expressions of disgust
    M L Phillips
    Department of Psychological Medicine, King s College School of Medicine and Dentistry, London, UK
    Nature 389:495-8. 1997
    ..The anterior insula is known to be involved in responses to offensive tastes. The neural response to facial expressions of disgust in others is thus closely related to appraisal of distasteful stimuli...
  62. ncbi Contextual cueing: implicit learning and memory of visual context guides spatial attention
    M M Chun
    Department of Psychology, Yale University, New Haven, CT 06520 8205, USA
    Cogn Psychol 36:28-71. 1998
    ..The results show how implicit learning and memory of visual context can guide spatial attention towards task-relevant aspects of a scene...
  63. pmc Synaptic and network mechanisms of sparse and reliable visual cortical activity during nonclassical receptive field stimulation
    Bilal Haider
    Department of Neurobiology, Yale University School of Medicine, 333 Cedar Street, New Haven, CT 06510, USA
    Neuron 65:107-21. 2010
    ..Our experimental observations were replicated with a simple computational model, suggesting that network interactions among neuronal subtypes ultimately sharpen recurrent excitation, producing specific and reliable visual responses...
  64. ncbi Neural measures reveal individual differences in controlling access to working memory
    Edward K Vogel
    Department of Psychology, University of Oregon, Eugene, Oregon 97403 1227, USA
    Nature 438:500-3. 2005
    ..Indeed, this ancillary allocation of memory capacity to irrelevant objects may be a primary source of putative differences in overall storage capacity...
  65. ncbi Visual objects in context
    Moshe Bar
    Martinos Center at Massachusetts General Hospital, Harvard Medical School, 149 Thirteenth Street, Charlestown, Massachusetts 02129, USA
    Nat Rev Neurosci 5:617-29. 2004
  66. ncbi Dissociable neural mechanisms supporting visual short-term memory for objects
    Yaoda Xu
    Department of Psychology, Yale University, New Haven, Connecticut 06520 8205, USA
    Nature 440:91-5. 2006
    ..VSTM capacity is therefore determined both by a fixed number of objects and by object complexity...
  67. ncbi The reverse hierarchy theory of visual perceptual learning
    Merav Ahissar
    Department of Psychology and Interdisciplinary Center for Neural Computation, Hebrew University, Jerusalem 91905, Israel
    Trends Cogn Sci 8:457-64. 2004
    ..We now extend this concept to describe the dynamics of skill acquisition and interpret recent behavioral and electrophysiological findings...
  68. pmc Gain modulation by nicotine in macaque v1
    Anita A Disney
    Center for Neural Science, New York University, 4 Washington Place, New York, NY 10003, USA
    Neuron 56:701-13. 2007
    ..We demonstrate that at the site of thalamic input to visual cortex, the effect of this nAChR-mediated gain is an enhancement of the detection of visual stimuli...
  69. ncbi Perceptual learning in Vision Research
    Dov Sagi
    The Weizmann Institute of Science, Rehovot, Israel
    Vision Res 51:1552-66. 2011
    ..A persistent open question is the neuro-anatomical substrate underlying these learning effects...
  70. ncbi Human neural systems for face recognition and social communication
    James V Haxby
    Laboratory of Brain and Cognition, National Institute of Mental Health, Building 10, Room 4C104, 10 Center Drive MSC 1366, Bethesda, MD 20892, USA
    Biol Psychiatry 51:59-67. 2002
    ..Of regions in the extended system for face perception, the amygdala plays a central role in processing the social relevance of information gleaned from faces, particularly when that information may signal a potential threat...
  71. ncbi The neural basis of perceptual learning
    C D Gilbert
    The Rockefeller University, 1230 York Avenue, New York, NY 10021, USA
    Neuron 31:681-97. 2001
    ..Top-down control of these representations suggests that learning involves an interaction between multiple cortical areas...
  72. ncbi Audio-visual simultaneity judgments
    Massimiliano Zampini
    University of Oxford, Oxford, England
    Percept Psychophys 67:531-44. 2005
    ....
  73. ncbi Tuning curves for approximate numerosity in the human intraparietal sulcus
    Manuela Piazza
    Unité INSERM 562 Cognitive Neuroimaging, CEA DSV, 91401 Orsay Cedex, France
    Neuron 44:547-55. 2004
    ..Anatomically, the intraparietal site coding for number in humans is compatible with that observed in macaque monkeys. Our results therefore suggest an evolutionary basis for human elementary arithmetic...
  74. ncbi The eye contact effect: mechanisms and development
    Atsushi Senju
    Centre for Brain and Cognitive Development, Birkbeck, University of London, Malet Street, London WC1E 7HX, UK
    Trends Cogn Sci 13:127-34. 2009
    ..Specifically, we hypothesize that perceived eye contact is initially detected by a subcortical route, which then modulates the activation of the social brain as it processes the accompanying detailed sensory information...
  75. ncbi Binocular rivalry and visual awareness in human extrastriate cortex
    F Tong
    Department of Psychology, Harvard University, Cambridge, Massachusetts 02138, USA
    Neuron 21:753-9. 1998
    ....
  76. ncbi Gamma-band synchronization in visual cortex predicts speed of change detection
    Thilo Womelsdorf
    FC Donders Centre for Cognitive Neuroimaging, Radboud University Nijmegen, 6525 EN Nijmegen, The Netherlands
    Nature 439:733-6. 2006
    ....
  77. ncbi Stimulus dependence of neuronal correlation in primary visual cortex of the macaque
    Adam Kohn
    Center for Neural Science, New York University, New York, New York 10003, USA
    J Neurosci 25:3661-73. 2005
    ....
  78. ncbi The neural code for written words: a proposal
    Stanislas Dehaene
    INSERM Unit 562, Cognitive Neuroimaging, Service Hospitalier Frederic Joliot, CEA DRM DSV 4 Place du general Leclerc, 91401 Orsay Cedex, France
    Trends Cogn Sci 9:335-41. 2005
    ..Our proposal can explain why the detection of 'open bigrams' (ordered pairs of letters) constitutes an important stage in visual word recognition...
  79. ncbi Cerebral mechanisms of word masking and unconscious repetition priming
    S Dehaene
    Unité INSERM 334, IFR 49, Service Hospitalier Frederic Joliot, CEA DSV, 4 Place du General Leclerc, 91401 Orsay Cedex, France
    Nat Neurosci 4:752-8. 2001
    ..In comparison to an unmasked situation, however, the activation evoked by masked words was drastically reduced and was undetectable in prefrontal and parietal areas, correlating with participants' inability to report the masked words...
  80. ncbi The attentional blink: resource depletion or temporary loss of control?
    Vincent Di Lollo
    Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, B C V6T 1Z4, Canada
    Psychol Res 69:191-200. 2005
    ..This lapse in control renders the observer vulnerable to an exogenously-triggered switch in attentional set...
  81. ncbi Visual scanning of faces in autism
    Kevin A Pelphrey
    Department of Psychology, UNC Neurodevelopmental Disorders Research Center, University of North Carolina at Chapel Hill, NC, USA
    J Autism Dev Disord 32:249-61. 2002
    ..Collectively, these results indicate disorganized processing of face stimuli in autistic individuals and suggest a mechanism that may subserve the social information processing deficits that characterize autism spectrum disorders...
  82. ncbi Neural mechanisms of social attention
    Lauri Nummenmaa
    Department of Psychology, University of Tampere, Biokatu 6, FIN 33014 Tampere, Finland
    Trends Cogn Sci 13:135-43. 2009
    ..We also review new research indicating that the posterior superior temporal sulcus region responds to the inferred intentionality of social cues, and consider the development of the gaze perception system...
  83. pmc Can attention selectively bias bistable perception? Differences between binocular rivalry and ambiguous figures
    Ming Meng
    Department of Psychology, Princeton University, Princeton, NJ, USA
    J Vis 4:539-51. 2004
    ..Our results support the notion that binocular rivalry involves a more automatic, stimulus-driven form of visual competition than Necker cube reversal, and as a consequence, is less easily biased by selective attention...
  84. ncbi Object perception as Bayesian inference
    Daniel Kersten
    Department of Psychology, University of Minnesota, Minneapolis, Minnesota 55455, USA
    Annu Rev Psychol 55:271-304. 2004
    ..Recent work in Bayesian theories of visual perception has shown how complexity may be managed and ambiguity resolved through the task-dependent, probabilistic ..
  85. ncbi The effect of stimulus strength on the speed and accuracy of a perceptual decision
    John Palmer
    Department of Psychology, University of Washington, Seattle, WA, USA
    J Vis 5:376-404. 2005
    ..The theory's analytic chronometric function allows one to extend theories of accuracy to response time...
  86. pmc High gamma power is phase-locked to theta oscillations in human neocortex
    R T Canolty
    Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720, USA
    Science 313:1626-8. 2006
    ..The results indicate that transient coupling between low- and high-frequency brain rhythms coordinates activity in distributed cortical areas, providing a mechanism for effective communication during cognitive processing in humans...
  87. ncbi Microsaccades uncover the orientation of covert attention
    Ralf Engbert
    Department of Psychology, University of Potsdam, P O Box 601553, 14415, Potsdam, Germany
    Vision Res 43:1035-45. 2003
    ..Furthermore, our results suggest that microsaccades can be used to map the orientation of visual attention in psychophysical experiments...
  88. ncbi Reward changes salience in human vision via the anterior cingulate
    Clayton Hickey
    Department of Cognitive Psychology, VU University Amsterdam, 1081 BT Amsterdam, The Netherlands
    J Neurosci 30:11096-103. 2010
    ..We suggest that reward acts to change visual salience and thus plays an important and undervalued role in attentional control...
  89. pmc Local diversity and fine-scale organization of receptive fields in mouse visual cortex
    Vincent Bonin
    Department of Neurobiology, Harvard Medical School, Boston, Massachusetts 02115, USA
    J Neurosci 31:18506-21. 2011
    ..Together, the results indicate considerable randomness in local populations of mouse visual cortical neurons, with retinotopy as the principal source of organization at the scale of hundreds of micrometers...
  90. ncbi The selective processing of briefly presented affective pictures: an ERP analysis
    Harald T Schupp
    Department of Psychology, University of Greifswald, Greifswald, Germany
    Psychophysiology 41:441-9. 2004
    ..These data suggest that a quick glimpse of emotionally relevant stimuli appears sufficient to tune the brain for selective perceptual processing...
  91. ncbi The retinotopic organization of the human middle temporal area MT/V5 and its cortical neighbors
    Hauke Kolster
    Laboratorium voor Neurofysiologie en Psychofysiologie, Katholieke Universiteit Leuven Medical School, Campus Gasthuisberg, 3000 Leuven, Belgium
    J Neurosci 30:9801-20. 2010
    ..Together with similarities in retinotopic organization and topological neighborhood, the functional properties suggest that MT/V5 in human and macaque cortex are homologous...
  92. ncbi The fusiform face area subserves face perception, not generic within-category identification
    Kalanit Grill-Spector
    Department of Psychology, Jordan Hall, Stanford University, Stanford, California 94305, USA
    Nat Neurosci 7:555-62. 2004
    ..These results indicate that the FFA is involved in both detection and identification of faces, but that it has little involvement in within-category identification of non-face objects (including objects of expertise)...
  93. pmc Separate coding of different gaze directions in the superior temporal sulcus and inferior parietal lobule
    Andrew J Calder
    Medical Research Council, Cognition and Brain Sciences Unit, 15 Chaucer Road, CB2 7EF Cambridge, United Kingdom
    Curr Biol 17:20-5. 2007
    ..Consistent with these findings, averted gaze in the adapted direction was misidentified as direct. Our study provides the first human evidence of dissociable neural systems for left and right gaze...
  94. pmc Cardinal rules: visual orientation perception reflects knowledge of environmental statistics
    Ahna R Girshick
    Department of Psychology, New York University, New York, New York, USA
    Nat Neurosci 14:926-32. 2011
    ..In addition, we determined how a neural population could embed probabilistic information responsible for such biases...
  95. pmc A neuronal network model linking subjective reports and objective physiological data during conscious perception
    Stanislas Dehaene
    Institut National de la Sante et de la Recherche Medicale, Unité 562, Cognitive Neuroimaging, Institut Fédératif de Recherche 49, Service Hospitalier Frederic Joliot, Commissariat à l Energie Atomique DSV, 91401 Orsay Cedex, France
    Proc Natl Acad Sci U S A 100:8520-5. 2003
    ..This all-or-none dynamics of conscious perception was verified behaviorally in human subjects...
  96. ncbi Neural representation of task difficulty and decision making during perceptual categorization: a timing diagram
    Marios G Philiastides
    Laboratory for Intelligent Imaging and Neural Computing, Department of Biomedical Engineering, Columbia University, New York, New York 10027, USA
    J Neurosci 26:8965-75. 2006
    ..We use these results to develop a timing diagram for perceptual decision making and relate the component activities to parameters of a diffusion model for decision making...
  97. ncbi The time course of visual processing: from early perception to decision-making
    R VanRullen
    Centre de Recherche Cerveau et Cognition, France
    J Cogn Neurosci 13:454-61. 2001
    ..Although average ERP responses reflect the visual category of the stimulus shortly after visual processing has begun (e.g. 75-80 msec), this difference is not correlated with the subject's behavior until 150 msec poststimulus...
  98. pmc Optimally interacting minds
    Bahador Bahrami
    University College London Institute of Cognitive Neuroscience, University College London, Alexandra House, 17 Queen Square, London WC1N 3AR, UK
    Science 329:1081-5. 2010
    ..These seemingly discrepant patterns of group behavior can be explained by a model in which two heads are Bayes optimal under the assumption that individuals accurately communicate their level of confidence on every trial...
  99. pmc Sounds reset rhythms of visual cortex and corresponding human visual perception
    Vincenzo Romei
    Institute of Neuroscience and Psychology, University of Glasgow, 58 Hillhead Street, Glasgow G12 8QB, UK
    Curr Biol 22:807-13. 2012
    ....
  100. ncbi Two visual systems re-viewed
    A D Milner
    Cognitive Neuroscience Research Unit, Wolfson Research Institute, Durham University, Queen s Campus, University Boulevard, Stockton on Tees TS17 6BH, UK
    Neuropsychologia 46:774-85. 2008
    ..Conversely, well-designed empirical contributions conceived within the framework of the model are the only way for us to progress along the route towards a fully fleshed-out specification of its workings...
  101. ncbi Language-specific tuning of visual cortex? Functional properties of the Visual Word Form Area
    Laurent Cohen
    Institut de Neurologie, Hopital de la Salpetriere, AP HP, Paris, France
    Brain 125:1054-69. 2002
    ..Moreover, activations in the precuneus and the left thalamus were observed when subjects were reading RVF versus left visual field (LVF) words, and are likely to reflect the attentional component of the RVF advantage...

Research Grants69

  1. Visual-social cognition in neurodevelopmental disorders
    Nouchine Hadjikhani; Fiscal Year: 2004
    b>Visual perception of faces is a major component of the "online" processing of social information required for successful interaction with other individuals...
  2. Fall risk assessment and prevention in elderly with diabetes using wearable techn
    Bor Rong Chen; Fiscal Year: 2012
    ..We hypothesize that amplifying visual perception of the lower extremity position during a set of obstacle crossing tasks in a safe virtual environment will ..
  3. MEMBRANE BASIS OF VISUAL EXCITATION
    Michael F Brown; Fiscal Year: 2012
    ..Thus we intend to provide an innovative new view of how rhodopsin together with the bilayer lipids triggers visual perception in the retinal disk membranes as a paradigm for GPCRs and signal transduction in general...
  4. Three-dimensional visualization, interactive analysis and contextual mapping of s
    PIERRE E GOOVAERTS; Fiscal Year: 2010
    ..data at multiple spatial and temporal scales within the same scene and thus taking full advantage of human visual perception that is fundamentally three dimensional...
  5. Towards the neuronal correlates of visual awareness
    Gabriel Kreiman; Fiscal Year: 2009
    ..We propose two experiments where visual perception is dissociated from the visual input: binocular rivalry and motion-induced blindness...
  6. Common and Distinct Phenotypes of Body Dysmorphic Disorder and Anorexia Nervosa
    Jamie Feusner; Fiscal Year: 2013
    ..There is early evidence of similar, common phenotypes of disturbances in visual perception and visuospatial processing in BDD and AN, as evidenced clinically and from neuropsychological testing...
  7. Structure &Function of Ganglion-Cell Photoreceptors Contributing to Form Vision
    MAUREEN ESTRELLITA ESTEVEZ; Fiscal Year: 2013
    ..varieties of ipRGCs have recently been discovered that send signals to brain regions involved in conscious visual perception of form, motion and color...
  8. Social Cognition and Functioning in Bipolar Disorder
    Michael F Green; Fiscal Year: 2010
    ..achieved by assessing participants on five types of measures: social cognition (performance and EEG), early visual perception, basic cognition, clinical, and functional...
  9. Using Health Information Technology to Support Population-Based Clinical Practice
    Per H Gesteland; Fiscal Year: 2013
    ..Information visualization and geographical information display. 2. Visual perception, human cognition, and medical decision making. 3. Knowledge integration in clinical information systems. 4...
  10. Development of Synaptic Plasticity in Visual Cortex
    Michael J Friedlander; Fiscal Year: 2010
    ..Such activity-dependent changes in synaptic signaling have been suggested to contribute to visual perception, cognitive performance, skill-learning, developmental re-organization and refinement of functional visual ..
  11. GENETIC ANALYSIS OF PHOTORECEPTOR DIFFERENTIATION
    Jarema Malicki; Fiscal Year: 2010
    ..by applicant): Photoreceptors are highly specialized light-sensitive cells of the retina, essential for visual perception. The loss of photoreceptors in the human eye due to genetic causes is a frequent cause of blindness...
  12. Neurophysiological Studies of Visual Perception in Schizophrenia
    Kevin M Spencer; Fiscal Year: 2013
    ..electroencephalogram (EEG) to examine the functional integrity of the neural circuitry underlying visual perception in schizophrenia...
  13. Developmental Social Neuroscience in Infants At-Risk for Autism
    JAMES CHARLES MCPARTLAND; Fiscal Year: 2013
    ..will be overseen by experts in infant visual and auditory EEG, infant neurology and epilepsy, infant visual perception, and developmental neuroscience and will take place at the Yale Child Study Center and mentors'..
  14. Genetics and Therapy of Age-related Retinal Dysfunction in A/J Mice
    Tadao Maeda; Fiscal Year: 2013
    ..Via the optic nerve, these signals reach the brain, where visual perception occurs...
  15. Cross-talk between ganglion-cell photoreceptors and other neurons in the retina
    Kwoon Y Wong; Fiscal Year: 2012
    ..and will also provide clues as to how the ipRGCs might modulate rod/cone circuits and hence conscious visual perception. This new knowledge may be useful for the development of drugs and light therapies for sleep problems and ..
  16. Neuronal basis of reward-biased visual perception
    Long Ding; Fiscal Year: 2009
    ..perceptual decision-making and to establish a novel experimental model to fill the knowledge gap on how visual perception is affected by reward-induced internal preferences...
  17. PERCEPTUAL BASES OF VISUAL CONCEPTS
    Edward A Wasserman; Fiscal Year: 2010
    ..Our general aim is to discover how the brain processes visual information, how neural activity is related to visual perception, and how visual processing interacts with other brain systems underlying cognition...
  18. PHOTOTRANSDUCTION ENZYMES
    KRZYSZTOF NMI PALCZEWSKI; Fiscal Year: 2013
    ..This signal is eventually relayed to the visual cortex of the brain, where visual perception occurs...
  19. Mechanisms of Avian Visual Perception, Cognition, and Action
    Robert G Cook; Fiscal Year: 2013
    ....
  20. Understanding feature-based auditory-visual interactions.
    Satoru Suzuki; Fiscal Year: 2013
    ..The proposed research will also allow development of cross- modal methods for assisting visual perception by enhancing specific spatial scales, materials, shapes, objects, and facial expressions...
  21. GATING MECHANISMS OF RETINAL ROD CGMP ACTIVATED CHANNELS
    William N Zagotta; Fiscal Year: 2013
    ..Their dynamic behavior controls our visual perception, yet the molecular mechanism for their function is largely unknown...
  22. Attention and Perceptual Learning
    Marisa Carrasco; Fiscal Year: 2013
    Project Summary Attention and perceptual learning (PL) are two mechanisms known to improve visual perception, though, for the most part, they have been studied separately...
  23. Neurophysiological Correlates of Emotional Modulation of Visual Perception
    MICHELLE UDARBE UMALI; Fiscal Year: 2010
    ..fMRI data will reveal effective connectivity patterns between emotion processing areas and TD/BU control of visual perception. I predict higher anxiety scores to be correlated with enhanced connectivity between fear regions and early ..
  24. Interaction of Visual and Oculomotor Signals in Cortex
    Tirin Moore; Fiscal Year: 2013
    ..the selection and retention of visual representations in cortex and the relevance of those influences to visual perception cognition, and visually guided behavior...
  25. A Unified Neuroanatomical Model of Speech Production and Perception: Implications
    Christopher Rorden; Fiscal Year: 2013
    ..has identified Broca's area as playing a role in not only the production of speech but also in the visual perception of others'speech motor movements...
  26. Consequences of uncertainty in visual perception and action
    LAURENCE THOMAS MALONEY; Fiscal Year: 2013
    ..Exploring the limits of movement planning in normal, healthy humans gives us insight into how well or poorly they will cope with disease, aging or injury. ..
  27. Perceptual, Cognitive, and Motor Rigidity in Parkinson's Disease
    Mirella Díaz-Santos; Fiscal Year: 2013
    ..The question is raised as to whether such rigidity extends to visual perception, which is known to be abnormal in PD...
  28. Can light sensors, placed in ganglion cells, restore vision to a blind retina?
    William H Merigan; Fiscal Year: 2010
    ..The research proposed here will examine the possibility that visual perception can be restored by this prosthesis in macaque monkeys blinded by photoreceptor/RPE degeneration.
  29. Signal Transfer in the Tectothalamic Pathway
    Martha E Bickford; Fiscal Year: 2011
    ..The proposed studies may also provide insight into "blindsight", the ability of some patients to detect visual motion in the absence of visual perception.
  30. Interaction of Visual and Oculomotor Signals in Cortex
    Tirin Moore; Fiscal Year: 2009
    ..the filtering and maintenance of visual representations in cortex and the relevance of those influences to visual perception cognition, and visually guided behavior...
  31. Expectation and Attention in Visual Cognition
    Tobias Egner; Fiscal Year: 2013
    ..However, visual perception is faced with two major constraints...
  32. Organization and Function of Mouse Visual Cortical Areas
    Edward M Callaway; Fiscal Year: 2013
    DESCRIPTION (provided by applicant): Visual perception is mediated by complex interactions amongst neurons in the retina, visual cortex, and subcortical brain structures...
  33. Rapid Material Perception
    Ruth Rosenholtz; Fiscal Year: 2010
    DESCRIPTION (provided by applicant): The visual perception of materials is a basic part of human vision, but is currently not well understood. People depend on material perception constantly in daily life...
  34. VISION SUBSTITUTION THROUGH THE TONGUE
    Aimee Arnoldussen; Fiscal Year: 2009
    ..University in Boston, where the program of psychophysical assessment will address a number of aspects of visual perception with the simulators and will also assess changes that might occur in these functions with moderate level of ..
  35. Function of Basal Synapses at Mammalian Photoreceptors
    Steven H DeVries; Fiscal Year: 2013
    ..cone photoreceptor synapse and signaling in postsynaptic bipolar cell pathways that are critical for visual perception. Cone photoreceptors mediate vision under conditions of bright illumination and use glutamate as their ..
  36. Visual Form-Based Spoken Word Processing
    LYNNE ESTHER BERNSTEIN; Fiscal Year: 2013
    ..effects in whole brain analyses focused on relationships among brain areas that might contribute to visual perception of speech...
  37. Improving the quality of visual developmental EEG data with eye tracking
    Mandy J Maguire; Fiscal Year: 2010
    ..addressed using only eye-tracking, such as literacy, human/technology interaction, face recognition, and visual perception. As a result this application promotes the development of existing technologies to enable fundamental ..
  38. HOW DOES ATTENTION ALTER APPEARANCE? PSYCHOPHYSICS AND NEUROPHYSIOLOGY
    Katharina Anton-Erxleben; Fiscal Year: 2013
    DESCRIPTION (provided by applicant): Visual perception is not always a veridical representation of our environment. Instead, processing of the visual scene is influenced by the selective allocation of attention...
  39. Retinal topography and the mechanisms of visual perception
    HEIDI JEAN HOFER; Fiscal Year: 2012
    ..This approach allows a direct link between the activity of individual cones and visual perception, and as such provides the aggregate action of the entire neural visual system uncontaminated by optical or ..
  40. Mechanisms of Visual Perception
    MICHAEL NEIL SHADLEN; Fiscal Year: 2013
    ..progress in this area is attributed to its strong quantitative and empirical foundation in the study of visual perception and visual neuroscience in human and nonhuman primates...
  41. Mechanism of Rapid Object Recognition in Human Ventral Temporal Cortex
    Daniel Yoshor; Fiscal Year: 2013
    ..The proposed experiments examine a fundamental question in neuroscience (what is the neural basis of human visual perception?) that is also clinically relevant...
  42. Functions of the Thalamus in Perception and Cognition
    Sabine Kastner; Fiscal Year: 2013
    ..The most compelling evidence for the pulvinar playing an important role in visual perception and cognition has come from lesion studies in humans and monkeys...
  43. Structural_Imaging_of_Visual_Processing_in_AD_and_DLB
    KELLY MARIE LANDY; Fiscal Year: 2013
    ..shares clinicopathologic features with AD, disrupts processing within the visual streams, resulting in basic visual perception deficits. DLB patients may be impaired on tasks measuring single stream processing...
  44. Neural Mechanisms of Object Recognition
    Daniel Yoshor; Fiscal Year: 2009
    ..Object recognition is an important aspect of visual perception: Humans are readily able to rapidly recognize objects independent of variations in object size, position, ..
  45. Protein/Chromphore Interactions via Protein Design: Interrogation and Application
    James H Geiger; Fiscal Year: 2013
    ..in photosynthesis, the fluorescent and phosphorescent properties of a variety of aquatic species and the visual perception system...
  46. Investigating Working Memory Encoding using Frequency-Tagging of Evoked Response
    Gideon Paul Caplovitz; Fiscal Year: 2012
    ..This technique has been widely used in the study of visual perception, and here we propose to apply it to perform a comprehensive investigation of WM encoding...
  47. Biological Motion Perception in Parkinson's Disease
    Abhishek Jaywant; Fiscal Year: 2013
    ..by applicant): Parkinson's disease (PD) is a neurodegenerative disorder that leads to deficits in both visual perception and locomotion...
  48. Methylphenidate, vigilance, and visual perception
    Kara L Agster; Fiscal Year: 2010
    ..The results of these studies will contribute to our understanding of the role of norepinephrine in perception, as well as how changes in sensory signal processing affect behavioral performance. ..
  49. Aging and Perceptual Learning: Behavioral and fMRI Studies
    Takeo Watanabe; Fiscal Year: 2013
    DESCRIPTION (provided by applicant): A well documented finding in the literature is that visual perception declines with age. These declines include the perception of target orientation, low contrast stimuli, motion, shape and form...
  50. CORE GRANT FOR VISION RESEARCH
    Richard H Kramer; Fiscal Year: 2013
    ..investigators, ranging in expertise and interest from molecular mechanisms of synaptic function to human visual perception. We request continued support for our CORE grant to ensure further success in vision research through shared ..
  51. VESTIBULAR INFLUENCES ON SPATIAL ORIENTATION AND VISUOSPATIAL CONSTANCY
    Dora Angelaki; Fiscal Year: 2013
    ..towards the visually-specified heading when visual reliability is higher than the vestibular reliability and visual perception should adapt towards the vestibular-specified heading when visual reliability is lower than the vestibular ..
  52. Cue Reliability and Depth Calibration During Space Perception
    Benjamin T Backus; Fiscal Year: 2011
    ..The proposed work benefits public health by characterizing the brain mechanisms that keep visual perception accurate...
  53. Models of visual cortical circuitry and development
    Kenneth D Miller; Fiscal Year: 2010
    ..PUBLIC HEALTH RELEVANCE The visual cortex is the brain structure with which we see, creating our visual perception from the information provided by the eyes...
  54. Function of fixational instability during natural viewing
    Michele Rucci; Fiscal Year: 2013
    ..it has long been hypothesized that the inces- sant fixational motion of the eye plays a fundamental role in visual perception. Several findings from our recent NIH-funded research suggest that this motion is, in fact, a critical ..
  55. Microtechnology-Enhanced Surgical Device For Pediatric Lens Capsulotomy And Treat
    Christopher Keller; Fiscal Year: 2011
    ..interferes with the optical performance of the eye and if untreated, results in lifelong deficits in visual perception. The first step in pediatric cataract surgery is technically the most challenging and involves the creation ..
  56. Short Term Training: Students in Health Professional Schools
    JEFFREY JAY WALLINE; Fiscal Year: 2012
    ..can be divided into three clearly identifiable program areas: ocular epidemiology, biological sciences, and visual perception. This critical mass of vision researchers possess over 10 current National Institutes of Health and National ..
  57. COORDINATION OF VOLUNTARY EYE MOVEMENTS
    Richard J Krauzlis; Fiscal Year: 2010
    ..shared processing likely ensures that pursuit and saccades are properly coordinated with each other and with visual perception and cognition during normal behavior...
  58. Continuously Decoding Visual Perception and Working Memory
    Michael S Pratte; Fiscal Year: 2013
    ..of becoming an independent researcher, developing novel analytic techniques for functional imaging data and using them to further our understanding of the neural bases of visual perception and higher-order cognition.
  59. INTERNAL SIGNALS IN THE PARIETAL VISUAL PATHWAY
    JOHN ASSAD; Fiscal Year: 2013
    DESCRIPTION (provided by applicant): Visual perception depends on more than visual input. The brain constantly generates internal signals that modulate responses to external visual stimuli...
  60. Bioptic driving by visually impaired
    Gang Luo; Fiscal Year: 2013
    ..Two critical aspects that need to be addressed are the lack of knowledge about bi-ocular visual perception when the bioptic is used and the impact of bioptics on driving safety...
  61. A Texture Analysis/Synthesis Model of Visual Crowding
    Ruth Rosenholtz; Fiscal Year: 2010
    ..This phenomenon is called "crowding," and it powerfully limits visual perception in many circumstances, especially in the peripheral visual field...
  62. Hierarchical development of temporal processing in human visual cortex.
    Faraz Farzin; Fiscal Year: 2013
    ..hierarchy in infants and adults, and will examine the relationship between neural activity and conscious visual perception. This approach will provide the first picture of the functional development of temporal visual processing in ..
  63. Neural Mechanism of Attentional Guidance During Search Through Complex Scenes
    DANIEL IAN BROOKS; Fiscal Year: 2013
    DESCRIPTION (provided by applicant): Both humans and monkeys rely on visual perception to seek food, find attractive mates, and spot danger. Moreover, we often accomplish these goals in a varied and complex environment...
  64. NEURONAL BASIS OF VISUAL PERCEPTION IN EYE MOVEMENTS
    Hitoshi Sato; Fiscal Year: 1991
    ....
  65. 8TH FAR WEST IMAGE PERCEPTION CONFERENCE
    Arthur Burgess; Fiscal Year: 1999
    b>Visual perception is a vital component of the diagnostic imaging chain. Errors in perception (false negatives and false positives) can have a negative impact on patient diagnosis and care...
  66. VISUAL PERCEPTION AND LANGUAGE
    ZENON PYLYSHYN; Fiscal Year: 2002
    Interdisciplinary Graduate Training in Visual Perception and Language This proposal for an Institutional NRSA is being submitted by the Rutgers Center for Cognitive Science (RuCCS) to support a unique interdisciplinary training program ..
  67. Cortical Inhibition During Visual Perception in Migraine
    Yue Cao; Fiscal Year: 2002
    ..excitability in migraineuers with visual aura by examining excitatory and inhibitory interaction during visual perception. Specifically, they will develop robust psychophysical methods to determine the extent of visual cortical ..
  68. HIERARCHICAL PROCESSING IN THE MOTION SYSTEM
    KENNETH BRITTEN; Fiscal Year: 2009
    The basic "building blocks" of visual perception are starting to become reasonably well understood, and we can make a fairly good account of how simple discriminations are done...
  69. VISUAL ANALYSIS OF HUMAN MOVEMENT
    MARGARET SHIFFRAR; Fiscal Year: 2006
    ..g., Johansson, 1973). Another possibility is that the visual processes underlying the visual perception of human movement benefit from motor system input in a manner that fundamentally differs from all other ..