form perception

Summary

Summary: The sensory discrimination of a pattern shape or outline.

Top Publications

  1. ncbi Multielement visual tracking: attention and perceptual organization
    S Yantis
    Department of Psychology, Johns Hopkins University, Baltimore, MD 21218
    Cogn Psychol 24:295-340. 1992
  2. ncbi Distributed and overlapping representations of faces and objects in ventral temporal cortex
    J V Haxby
    Laboratory of Brain and Cognition, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
    Science 293:2425-30. 2001
  3. ncbi Perceptual learning in object recognition: object specificity and size invariance
    C S Furmanski
    Department of Psychology, University of California, Los Angeles 90095 1563, USA
    Vision Res 40:473-84. 2000
  4. 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
  5. ncbi Contour saliency in primary visual cortex
    Wu Li
    The Rockefeller University, 1230 York Avenue, New York, New York 10021, USA
    Neuron 50:951-62. 2006
  6. ncbi The dynamics of object-selective activation correlate with recognition performance in humans
    K Grill-Spector
    Departments of Computer Science and Neurobiology, Weizmann Institute of Science, Rehovot 76100, Israel
    Nat Neurosci 3:837-43. 2000
  7. pmc Learning to link visual contours
    Wu Li
    The Rockefeller University, New York, NY 10065, USA
    Neuron 57:442-51. 2008
  8. ncbi A cortical area selective for visual processing of the human body
    P E Downing
    School of Psychology, Centre for Cognitive Neuroscience, University of Wales, Bangor LL57 2AS, UK
    Science 293:2470-3. 2001
  9. ncbi The lateral occipital complex and its role in object recognition
    K Grill-Spector
    Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. kalanit2psyche.mit.edu
    Vision Res 41:1409-22. 2001
  10. 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

Detail Information

Publications289 found, 100 shown here

  1. ncbi Multielement visual tracking: attention and perceptual organization
    S Yantis
    Department of Psychology, Johns Hopkins University, Baltimore, MD 21218
    Cogn Psychol 24:295-340. 1992
    ..This supports object-based theories of attention and demonstrates that perceptual grouping, which is usually conceived of as a purely stimulus-driven process, can also be governed by goal-directed mechanisms...
  2. ncbi Distributed and overlapping representations of faces and objects in ventral temporal cortex
    J V Haxby
    Laboratory of Brain and Cognition, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
    Science 293:2425-30. 2001
    ..These results indicate that the representations of faces and objects in ventral temporal cortex are widely distributed and overlapping...
  3. ncbi Perceptual learning in object recognition: object specificity and size invariance
    C S Furmanski
    Department of Psychology, University of California, Los Angeles 90095 1563, USA
    Vision Res 40:473-84. 2000
    ..Our results indicate that a large amount of learning took place in object-specific mechanisms that are insensitive to image size...
  4. 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
    ....
  5. ncbi Contour saliency in primary visual cortex
    Wu Li
    The Rockefeller University, 1230 York Avenue, New York, New York 10021, USA
    Neuron 50:951-62. 2006
    ..Our results demonstrate that contextual interactions in V1 play a pivotal role in contour integration and saliency...
  6. ncbi The dynamics of object-selective activation correlate with recognition performance in humans
    K Grill-Spector
    Departments of Computer Science and Neurobiology, Weizmann Institute of Science, Rehovot 76100, Israel
    Nat Neurosci 3:837-43. 2000
    ..Overall, the correlation between recognition performance and fMRI signal was highest in occipitotemporal object areas (the lateral occipital complex)...
  7. pmc Learning to link visual contours
    Wu Li
    The Rockefeller University, New York, NY 10065, USA
    Neuron 57:442-51. 2008
    ..This may serve as a general neuronal mechanism of perceptual learning and reflect top-down mediated changes in cortical states...
  8. ncbi A cortical area selective for visual processing of the human body
    P E Downing
    School of Psychology, Centre for Cognitive Neuroscience, University of Wales, Bangor LL57 2AS, UK
    Science 293:2470-3. 2001
    ..This region was found in the lateral occipitotemporal cortex in all subjects tested and apparently reflects a specialized neural system for the visual perception of the human body...
  9. ncbi The lateral occipital complex and its role in object recognition
    K Grill-Spector
    Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. kalanit2psyche.mit.edu
    Vision Res 41:1409-22. 2001
    ..Overall, these results indicate that the lateral occipital complex plays an important role in human object recognition...
  10. 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...
  11. ncbi Attention to 3-D shape, 3-D motion, and texture in 3-D structure from motion displays
    Hendrik Peuskens
    K U Leuven, Medical School, Belgium
    J Cogn Neurosci 16:665-82. 2004
    ....
  12. pmc Unsupervised natural experience rapidly alters invariant object representation in visual cortex
    Nuo Li
    McGovern Institute for Brain Research and Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
    Science 321:1502-7. 2008
    ..Together with previous theoretical work and human object perception experiments, we speculate that UTL may reflect the mechanism by which the visual stream builds and maintains tolerant object representations...
  13. pmc The spatial range of contour integration deficits in schizophrenia
    Brian P Keane
    Division of Schizophrenia Research, University Behavioral HealthCare, University of Medicine and Dentistry of New Jersey, 151 Centennial Ave, Piscataway, NJ 08854, USA
    Exp Brain Res 220:251-9. 2012
    ..5°. Later-developing, low-level integrative mechanisms of lateral connectivity and feedback appear not to be differentially impaired in the illness...
  14. ncbi Categorical representation of visual stimuli in the primate prefrontal cortex
    D J Freedman
    Center for Learning and Memory, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
    Science 291:312-6. 2001
    ..Neural activity in the lateral prefrontal cortex reflected the category of visual stimuli, even when a monkey was retrained with the stimuli assigned to new categories...
  15. ncbi A comparative study of shape representation in macaque visual areas v2 and v4
    Jay Hegdé
    Department of Anatomy and Neurobiology, Washington University School of Medicine, Saint Louis, MO 63110, USA
    Cereb Cortex 17:1100-16. 2007
    ..Commonalities of visual shape representation across hierarchical levels may reflect the replication of neural circuits used in generating complex shape representations at multiple spatial scales...
  16. ncbi Processing shape, motion and three-dimensional shape-from-motion in the human cortex
    Scott O Murray
    Center for Neuroscience, University of California at Davis, Davis, CA 95616, USA
    Cereb Cortex 13:508-16. 2003
    ....
  17. ncbi How long range is contour integration in human color vision?
    William H A Beaudot
    McGill Vision Research, Department of Ophthalmology, McGill University, 687 Pine Avenue West, H4 14, Montreal, Canada H3A 1A1
    Vis Neurosci 20:51-64. 2003
    ..In both experiments we also found no differences between closed and open jagged contours detection in terms of element separation. The neuroanatomical implications of these findings relatively to area V1 are discussed...
  18. ncbi Separate channels for processing form, texture, and color: evidence from FMRI adaptation and visual object agnosia
    C Cavina-Pratesi
    Department of Psychology, Durham University, Science Laboratories, Durham DH1 3LE, UK
    Cereb Cortex 20:2319-32. 2010
    ..These latter areas appear to correspond to those associated with the perception of complex stimuli such as faces and places...
  19. ncbi Perceptually bistable three-dimensional figures evoke high choice probabilities in cortical area MT
    J V Dodd
    University Laboratory of Physiology, Oxford OX1 3PT, United Kingdom
    J Neurosci 21:4809-21. 2001
    ..1996). This implies that MT neurons make a different contribution to the two tasks. For the depth task, either the pool of neurons used is smaller or the correlation between neurons in the pool is larger...
  20. ncbi Unraveling mechanisms for expert object recognition: bridging brain activity and behavior
    Isabel Gauthier
    Department of Psychology, Vanderbilt University, Nashville, Tennessee 37203, USA
    J Exp Psychol Hum Percept Perform 28:431-46. 2002
    ..Moreover, a holistic-inclusive effect was correlated with changes in the right FFA. Face recognition may not be unique in its reliance on holistic processing, measured in terms of both behavior and brain activation...
  21. 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 sensitivity to such global attributes emerge...
  22. ncbi Separate processing dynamics for texture elements, boundaries and surfaces in primary visual cortex of the macaque monkey
    V A Lamme
    Graduate School of Neurosciences, Department of Visual System Analysis, AMC, University of Amsterdam, The Netherlands
    Cereb Cortex 9:406-13. 1999
    ..These data favour a model of segmentation where boundary formation initiates surface filling-in...
  23. ncbi Shape and the first hundred nouns
    Lisa Gershkoff-Stowe
    Department of Speech and Hearing Sciences, Indiana University, Bloomington 47405, USA
    Child Dev 75:1098-114. 2004
    ..The results indicate that as children learned nouns, they also learned to attend to shape in the novel word task. At the same time, children showed an acceleration in new noun production outside of the laboratory...
  24. ncbi Neurobiological models of visuospatial cognition in children with Williams syndrome: measures of dorsal-stream and frontal function
    Janette Atkinson
    Visual Development Unit, Department of Psychology, University College London, England
    Dev Neuropsychol 23:139-72. 2003
    ..However, some children with WS can achieve similar performance to typically developing children on some tasks involving the dorsal stream although the strategies and processing may be different in the 2 groups...
  25. ncbi Columns for complex visual object features in the inferotemporal cortex: clustering of cells with similar but slightly different stimulus selectivities
    Keiji Tanaka
    RIKEN Brain Research Institute, Wako Shi, Saitama 351 0198, Japan
    Cereb Cortex 13:90-9. 2003
    ..The two modes may work in parallel, with a graded balance changing according to the behavioral context. Determining whether or not these hypotheses are valid will require further studies...
  26. ncbi Prototype-referenced shape encoding revealed by high-level aftereffects
    D A Leopold
    , , Germany
    Nat Neurosci 4:89-94. 2001
    ..The results suggest that the encoding of faces and other complex patterns draws upon contrastive neural mechanisms that reference the central tendency of the stimulus category...
  27. pmc Dynamics of subjective contour formation in the early visual cortex
    T S Lee
    Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, PA 15213, USA
    Proc Natl Acad Sci U S A 98:1907-11. 2001
    ..The temporal sequence of the events suggests that the computation of illusory contours involves intercortical interaction, and that early perceptual organization is likely to be an interactive process...
  28. ncbi Hierarchical processing of tactile shape in the human brain
    A Bodegård
    Division of Human Brain Research, Department of Neuroscience, Karolinska Institute, 171 77, Stockholm, Sweden
    Neuron 31:317-28. 2001
    ..We suggest, based on these findings, that somatosensory representations of shape are computed by areas 3b, 1, 2, IPA, and ASM in this hierarchical fashion...
  29. ncbi From local to global: Cortical dynamics of contour integration
    Topi Tanskanen
    Helsinki University of Technology, Espoo, Finland
    J Vis 8:15.1-12. 2008
    ..These results demonstrate two spatially and temporally distinct stages of visual cortical processing, the first one limited to local features and the second one integrating information at a more global level...
  30. ncbi Representation of angles embedded within contour stimuli in area V2 of macaque monkeys
    Minami Ito
    Division of Sensory and Cognitive Information, Department of Information Physiology, National Institute for Physiological Sciences, Okazaki, Aichi 444 8585, Japan
    J Neurosci 24:3313-24. 2004
    ..We suggest that the extraction of information of angles embedded within contour stimuli may start in area V2...
  31. pmc Category selectivity in the ventral visual pathway confers robustness to clutter and diverted attention
    Leila Reddy
    McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
    Curr Biol 17:2067-72. 2007
    ....
  32. ncbi Neural correlates of visual form and visual spatial processing
    L Shen
    Center for Magnetic Resonance Research, Department of Radiology, University of Minnesota, Minneapolis 55455, USA
    Hum Brain Mapp 8:60-71. 1999
    ..A strong left hemisphere dominance in visual form recognition was also revealed. The observed laterality may be a reflection that the left hemisphere is more important in symbolic and/or semantic coding of visual form information...
  33. ncbi Reduced top-down influences in contour detection in schizophrenia
    Steven M Silverstein
    Weill Medical College of Cornell University, White Plains, NY, USA
    Cogn Neuropsychiatry 11:112-32. 2006
    ....
  34. ncbi Probing the visual representation of faces with adaptation: A view from the other side of the mean
    Fang Jiang
    School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, TX 75083 0688, USA
    Psychol Sci 17:493-500. 2006
    ..These findings have implications for computational models of face recognition and for competing neural theories of face and object recognition...
  35. ncbi Perception of three-dimensional shape from texture is based on patterns of oriented energy
    A Li
    State University of New York, State College of Optometry, NY 10010, USA
    Vision Res 40:217-42. 2000
    ..7) Only some natural textures will provide sufficient monocular cues to support veridical shape inferences, and this can be predicted from their global Fourier transforms...
  36. ncbi Representation of perceived object shape by the human lateral occipital complex
    Z Kourtzi
    Department of Brain and Cognitive Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
    Science 293:1506-9. 2001
    ..These data indicate that the LOC represents not simple image features, but rather higher level shape information...
  37. ncbi Gestalten of today: early processing of visual contours and surfaces
    I Kovacs
    Laboratory of Vision Research, Rutgers University, Piscataway, NJ 08857, USA http zeus rutgers edu ikovacs html
    Behav Brain Res 82:1-11. 1996
    ..Finally, it is concluded that the underlying functional architecture is not only dynamic and context dependent, but the pattern of connectivity depends as much on past experience as on actual stimulation...
  38. ncbi Electrophysiological correlates of visual adaptation to faces and body parts in humans
    Gyula Kovacs
    Department of Cognitive Science, Budapest University of Technology and Economics, Budapest, H 1111, Hungary
    Cereb Cortex 16:742-53. 2006
    ..Our findings suggest that shape-selective adaptation is a general mechanism of visual object processing and its neural effects are primarily reflected in the N170 component of the ERP responses...
  39. ncbi Do humans optimally integrate stereo and texture information for judgments of surface slant?
    David C Knill
    Center for Visual Sciences, University of Rochester, 274 Meliora Hall, Rochester, NY 14627, USA
    Vision Res 43:2539-58. 2003
    ..Taken together, the results are consistent with the hypothesis that humans optimally combine the two cues to surface slant, with cue weights proportional to the subjective reliability of the cues...
  40. ncbi Neural mechanisms of visual object priming: evidence for perceptual and semantic distinctions in fusiform cortex
    Jon S Simons
    Department of Psychology, Harvard University, Cambridge, MA 02138, USA
    Neuroimage 19:613-26. 2003
    ..The results are consistent with the view that the right fusiform plays a greater role in processing specific visual form information about objects, whereas the left fusiform is also involved in lexical/semantic processing...
  41. ncbi Compulsory averaging of crowded orientation signals in human vision
    L Parkes
    Institute of Neurology, University College London, Queen Square, London WC1N 3BG, UK
    Nat Neurosci 4:739-44. 2001
    ..Our results imply that crowding is distinct from ordinary masking, and is perhaps related to texture perception. Under crowded conditions, the orientation signals in primary visual cortex are pooled before they reach consciousness...
  42. ncbi Learning acts on distinct processes for visual form perception in the human brain
    Stephen D Mayhew
    School of Psychology, University of Birmingham, Birmingham B15 2TT, United Kingdom
    J Neurosci 32:775-86. 2012
    ..Thus, our findings provide evidence that learning acts on distinct visual recognition processes and shapes feedforward interactions across brain areas to support performance in complex perceptual tasks...
  43. ncbi Shape-from-shading for matte and glossy objects
    Harold T Nefs
    Universiteit Utrecht Helmholtz Instituut, Department of Physics of Man, Utrecht, The Netherlands
    Acta Psychol (Amst) 121:297-316. 2006
    ..We must, therefore, conclude that there is no evidence from the current study that glossiness influences shape perception although to the observer matte and glossy objects look quite different...
  44. ncbi Ideal observer perturbation analysis reveals human strategies for inferring surface orientation from texture
    D C Knill
    Department of Psychology, University of Pennsylvania, 3815 Walnut Street, Philadelphia, PA 19104, USA
    Vision Res 38:2635-56. 1998
    ..They further suggest that local texture skew, when available in an image, contributes significantly to perceptual estimates of surface orientation...
  45. ncbi Form perception and visual acuity in a chimpanzee
    T Matsuzawa
    Primate Research Institute, Kyoto University, Inuyama, Japan
    Folia Primatol (Basel) 55:24-32. 1990
    ..A species-typical feature was identified in the perceptual processes associated with complex forms, such as those involved in individual recognition...
  46. pmc Acting while perceiving: assimilation precedes contrast
    Marc Grosjean
    Department of Psychology, Max Planck Institute for Human Cognitive and Brain Sciences, Munich, Germany
    Psychol Res 73:3-13. 2009
    ..These findings extend those of related studies by showing that CEs of this type actually correspond to the second phase of a bi-phasic pattern of specific perception-action interference...
  47. ncbi A new selective developmental deficit: Impaired object recognition with normal face recognition
    Laura Germine
    Department of Psychology, Harvard University, Cambridge, MA, USA
    Cortex 47:598-607. 2011
    ..The existence of a case of non-face developmental visual agnosia would indicate that the development of normal face recognition mechanisms does not rely on the development of normal object recognition mechanisms...
  48. pmc Adaptive shape processing in primary visual cortex
    Justin N J McManus
    Laboratory of Neurobiology, The Rockefeller University, New York, NY 10065, USA
    Proc Natl Acad Sci U S A 108:9739-46. 2011
    ..Our results suggest a general model of cortical function, whereby horizontal connections provide a broad domain of potential associations, and top-down inputs dynamically gate these linkages to task switch the function of a network...
  49. 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...
  50. 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...
  51. pmc Release from cross-orientation suppression facilitates 3D shape perception
    Andrea Li
    Department of Psychology, Queens College, City University of New York, Flushing, New York, USA
    PLoS ONE 4:e8333. 2009
    ..We show that coupling compressive nonlinearities in LGN neurons with expansive nonlinearities in cortical neurons can model the frequency-specific component of suppression...
  52. ncbi Bayesian combination of ambiguous shape cues
    Wendy J Adams
    Department of Psychology, University of Southampton, Southampton, UK
    J Vis 4:921-9. 2004
    ..Our data confirm that different cues can disambiguate each other. Data from both experiments are well modeled by a Bayesian approach incorporating a prior for convexity...
  53. pmc Shape perception reduces activity in human primary visual cortex
    Scott O Murray
    Center for Neuroscience, Department of Psychology, University of California, Davis 95616, USA
    Proc Natl Acad Sci U S A 99:15164-9. 2002
    ..These findings are consistent with predictive coding models of vision that postulate that inferences of high-level areas are subtracted from incoming sensory information in lower areas through cortical feedback...
  54. ncbi Properties of shape tuning of macaque inferior temporal neurons examined using rapid serial visual presentation
    Wouter De Baene
    Laboratorium voor Neuro en Psychofysiologie, K U Leuven Medical School, Campus Gasthuisberg, Herestraat 49, Bus 1021, Leuven, B 3000, Belgium
    J Neurophysiol 97:2900-16. 2007
    ....
  55. ncbi Object-load and feature-load modulate EEG in a short-term memory task
    Niko A Busch
    Department of Biological Psychology, University of Magdeburg, Postfach 4120, 39016 Magdeburg, Germany
    Neuroreport 14:1721-4. 2003
    ..Thus, only object-load seemed to influence encoding and retention while feature-load played a crucial role during retrieval. Our results demonstrate that object-load and feature-load influence short-term memory at different stages...
  56. ncbi Self-motion and the perception of stationary objects
    M Wexler
    Laboratoire de Physiologie de la Perception et de l Action, College de France, Paris
    Nature 409:85-8. 2001
    ..These results show that action makes an important contribution to depth perception, and argue for a revision of the rigidity hypothesis to incorporate the special case of stationary objects...
  57. ncbi A Bayesian framework for cue integration in multistable grouping: Proximity, collinearity, and orientation priors in zigzag lattices
    Peter M E Claessens
    Laboratory of Experimental Psychology, Department of Psychology, University of Leuven, Belgium
    J Vis 8:33.1-23. 2008
    ..H. Elder & R. M. Goldberg, 2002). The potential of hierarchically extended Bayes models for a better understanding of principles in cue integration is discussed...
  58. ncbi Effects of category learning on the stimulus selectivity of macaque inferior temporal neurons
    Wouter De Baene
    Laboratorium voor Neuro en Psychofysiologie, K U Leuven Medical School, Campus Gasthuisberg, Leuven B 3000, Belgium
    Learn Mem 15:717-27. 2008
    ....
  59. ncbi Adaptation duration affects the spatial selectivity of facial aftereffects
    Gyula Kovacs
    Department of Cognitive Science, Budapest University of Technology and Economics, Budapest H 1111, Hungary
    Vision Res 47:3141-9. 2007
    ..Our findings imply that manipulating adaptation duration provides an opportunity to specifically adapt different neural processes of shape-specific coding and to investigate their stimulus selectivity...
  60. ncbi Limits of event-related potential differences in tracking object processing speed
    Guillaume A Rousselet
    Université Toulouse 3
    J Cogn Neurosci 19:1241-58. 2007
    ..We conclude that task-dependent ERP differences fail to capture object processing speed, at least for some categories like faces. We discuss models of object processing that might explain our results, as well as alternative approaches...
  61. ncbi A human extrastriate area functionally homologous to macaque V4
    J L Gallant
    Department of Psychology, University of California, Berkeley 94720, USA
    Neuron 27:227-35. 2000
    ..This pattern of deficits is consistent with the known properties of area V4 in nonhuman primates, indicating that AR's lesion affects a cortical region functionally homologous to macaque V4...
  62. ncbi Race coding and the other-race effect in face recognition
    Gillian Rhodes
    School of Psychology, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
    Perception 38:232-41. 2009
    ..We suggest that poorer recognition of other-race faces may reflect reduced perceptual expertise with such faces and perhaps reduced motivation to individuate them...
  63. pmc Moving illusory contours activate primary visual cortex: an fMRI study
    M Seghier
    INSERM U438, RMN Bioclinique, LRC CEA, Centre Hospitalier Universitaire, Pavillon B, BP 217, F 38043 Grenoble Cedex 9, France
    Cereb Cortex 10:663-70. 2000
    ..Our results indicate that, in addition to other cortical regions, areas V5 and V1 are activated. Activity in area V1 was particularly prominent...
  64. ncbi Absence of contour linking in peripheral vision
    R F Hess
    McGill Vision Research, Department of Ophthalmology, McGill University, Montreal, Quebec, Canada
    Nature 390:602-4. 1997
    ..This difference represents a substantial economy in cortical neuronal processing of peripheral visual information and may allow a recent theory of intercellular binding to be tested...
  65. ncbi Detection and recognition of radial frequency patterns
    F Wilkinson
    Department of Psychology, McGill University, Montreal, Quebec, Canada
    Vision Res 38:3555-68. 1998
    ....
  66. ncbi View-specific coding of face shape
    Linda Jeffery
    School of Psychology, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
    Psychol Sci 17:501-5. 2006
    ..The aftereffects survived a size change between adaptation and test faces (Experiment 2), a result that rules out low-level adaptation as an explanation. These results provide strong evidence that face-shape coding is view-specific...
  67. ncbi Early lateralization and orientation tuning for face, word, and object processing in the visual cortex
    Bruno Rossion
    Cognitive Neuroscience Unit, University of Louvain, Belgium
    Neuroimage 20:1609-24. 2003
    ..Such results show that early processes in object recognition respond to category-specific visual information, and are associated with strong lateralization and orientation bias...
  68. ncbi Representation of regular and irregular shapes in macaque inferotemporal cortex
    Greet Kayaert
    Laboratorium voor Neuro en Psychofysiologie, KU Leuven Medical School, Leuven, Belgium
    Cereb Cortex 15:1308-21. 2005
    ..The representation of shape in IT thus exceeds a mere faithful representation of physical reality, by emphasizing perceptually salient features relevant for essential categorizations...
  69. ncbi Modulation of V1 activity by shape: image-statistics or shape-based perception?
    Serge O Dumoulin
    McGill Vision Research Unit, Department of Ophthalmology, McGill University, Montreal, Canada
    J Neurophysiol 95:3654-64. 2006
    ..We find that these V1 modulations to shape change are correlated with low-level changes in orientation contrast rather than shape perception per se...
  70. ncbi Attention to form or surface properties modulates different regions of human occipitotemporal cortex
    Jonathan S Cant
    Canadian Institutes of Health Research Group on Action and Perception, Neuroscience Program, Department of Psychology, University of Western Ontario, London, Ontario, Canada
    Cereb Cortex 17:713-31. 2007
    ..The extraction of information about an object's color seems to occur relatively early in visual analysis as compared with the extraction of surface texture, perhaps because the latter requires more complex computations...
  71. ncbi Face categorization in visual scenes may start in a higher order area of the right fusiform gyrus: evidence from dynamic visual stimulation in neuroimaging
    Fang Jiang
    Institute of Psychology, University of Louvain, Belgium
    J Neurophysiol 106:2720-36. 2011
    ..These results provide further evidence for a nonhierarchical organization of the cortical face-processing network...
  72. ncbi Time course of processes and representations supporting visual object identification and memory
    Haline E Schendan
    Tufts University
    J Cogn Neurosci 15:111-35. 2003
    ....
  73. ncbi Seeing more than meets the eye: processing of illusory contours in animals
    A Nieder
    Center for Learning and Memory, Dept of Brain and Cognitive Sciences, E25 236, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
    J Comp Physiol A Neuroethol Sens Neural Behav Physiol 188:249-60. 2002
    ..The detection of illusory contours by independently evolved visual systems argues that processing of edges in the absence of contrast gradients reflects fundamental visual constraints and not just an artifact of visual processing...
  74. ncbi Predictive codes for forthcoming perception in the frontal cortex
    Christopher Summerfield
    Department of Psychology, Columbia University, 1190 Amsterdam Avenue, New York, NY 10027, USA
    Science 314:1311-4. 2006
    ....
  75. ncbi Slant from texture and disparity cues: optimal cue combination
    James M Hillis
    Department of Psychology, University of Pennsylvania, Philadelphia, PA, USA
    J Vis 4:967-92. 2004
    ..Thus, there is a growing empirical consensus that MLE provides a good quantitative account of cue combination and that sensory information is used in a manner that maximizes the precision of perceptual estimates...
  76. ncbi The effect of aging on contour integration
    Eugenie Roudaia
    Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, ON, Canada
    Vision Res 48:2767-74. 2008
    ..However, older subjects' performance was not affected by the orientation of the local elements. This indicates an age-related decline in contour integration...
  77. ncbi The circuitry of V1 and V2: integration of color, form, and motion
    Lawrence C Sincich
    Beckman Vision Center, University of California San Francisco, San Francisco, CA 94143, USA
    Annu Rev Neurosci 28:303-26. 2005
    ..Each stream is composed of a mixture of magno, parvo, and konio geniculate signals. Further studies are required to elucidate how the patches and interpatches differ in the output they convey to extrastriate cortex...
  78. ncbi Rapid contour integration in macaque monkeys
    Sunita Mandon
    Institute for Brain Research, Center for Advanced Imaging, University of Bremen, FB2, Hochschulring 16A, P O Box 330440, D 28334 Bremen, Germany
    Vision Res 45:291-300. 2005
    ..The grouping process was surprisingly fast: In a backward masking experiment we show that a stimulus duration of 30-60 ms is sufficient to perceive a contour and to identify its shape...
  79. ncbi Broadly tuned, view-specific coding of face shape: opposing figural aftereffects can be induced in different views
    Linda Jeffery
    The University of Western Australia, School of Psychology, 35 Stirling Highway, M304, Crawley, WA 6009, Australia
    Vision Res 47:3070-7. 2007
    ..Cancellation increased monotonically as the angle between two adapting views decreased, consistent with broadly tuned, view-specific coding of face shape...
  80. ncbi Processing time of contour integration: the role of colour, contrast, and curvature
    W H Beaudot
    Department of Ophthalmology, McGill University, Montreal, Quebec, Canada
    Perception 30:833-53. 2001
    ..The significance of these differences and similarities between postreceptoral mechanisms is discussed...
  81. ncbi The electrophysiological correlate of contour integration is similar for color and luminance mechanisms
    Birgit Mathes
    Department of Human Neurobiology, University of Bremen, 28211 Bremen, Germany
    Psychophysiology 44:305-22. 2007
    ..This indicates a common physiological processing stream for orientation-based contour integration of red-and-green and black-and-white elements...
  82. ncbi Color in complex scenes
    Steven K Shevell
    Department of Psychology, University of Chicago, Chicago, Illinois 60637, USA
    Annu Rev Psychol 59:143-66. 2008
    ....
  83. ncbi Observer strategies in perception of 3-D shape from isotropic textures: developable surfaces
    Andrea Li
    SUNY College of Optometry, 33 W 42nd Street, New York, NY 10036 8003, USA
    Vision Res 43:2741-58. 2003
    ..Isotropic textures thus convey correct 3-D shapes of developable surfaces only in some conditions, and the same perceptual strategies lead to non-veridical percepts in other conditions...
  84. ncbi Learning to integrate arbitrary signals from vision and touch
    Marc O Ernst
    Max Planck Institute for Biological Cybernetics, Tubingen, Germany
    J Vis 7:7.1-14. 2007
    ..After training, discrimination thresholds for the incongruent stimuli are increased relative to thresholds for congruent stimuli, suggesting that subjects learned effectively to integrate the two formerly unrelated signals...
  85. ncbi Detection of shape in radial frequency contours: independence of local and global form information
    Jason Bell
    School of Psychology, The University of Western Australia, 35 Stirling Highway, Crawley 6009, WA, Australia
    Vision Res 47:1518-22. 2007
    ..In the reverse condition, detection of global form was not influenced by adding local deviations onto the structure. This suggests that local and global shape information can be detected independently within the human visual system...
  86. ncbi Predictive remapping of visual features precedes saccadic eye movements
    David Melcher
    Center for Mind Brain Studies and Department of Cognitive Science, University of Trento, Corso Bettini 31, Rovereto 38068, Italy
    Nat Neurosci 10:903-7. 2007
    ..The remapping of visual processing, demonstrated here with form adaptation, may help to explain our impression of a smooth transition, with no temporal delay, of visual perception across glances...
  87. ncbi One-shot viewpoint invariance in matching novel objects
    I Biederman
    Department of Psychology, University of Southern California, Los Angeles 90089 2520, USA
    Vision Res 39:2885-99. 1999
    ..NAPs offer a striking advantage over MPs for object classification and are therefore more likely to play a central role in the representation of objects...
  88. ncbi A set of 400 pictures standardised for Portuguese: norms for name agreement, familiarity and visual complexity for children and adults
    S Pompeia
    Department of Psychobiology, Universidade Federal de Sao Paulo, Sao Paulo, SP, Brazil
    Arq Neuropsiquiatr 59:330-7. 2001
    ..The pattern of correlations among measures observed in the present study was consistent with previous reports, supporting the usefulness of the 400 picture set as a tool for cognitive research in different cultures and ages...
  89. ncbi Cortical specialization for concentric shape processing
    Serge O Dumoulin
    McGill Vision Research Unit, Department of Ophthalmology, McGill University, Montreal, Canada
    Vision Res 47:1608-13. 2007
    ..We find stronger responses to circular patterns in areas V3/VP and V4. Our results suggest that extracting circular shape is an important step in intermediate shape processing...
  90. ncbi Facial-expression and gaze-selective responses in the monkey amygdala
    Kari L Hoffman
    Max Planck Institute for Biological Cybernetics, 72076 Tubingen, Germany
    Curr Biol 17:766-72. 2007
    ..Independent behavioral measures confirmed that faces with averted gaze were more arousing, suggesting the activity in the central nucleus may be related to attention and arousal...
  91. ncbi The hollow-face illusion: object-specific knowledge, general assumptions or properties of the stimulus?
    Harold Hill
    Human Information Science Laboratories, Atri, Keihanna Science City, 2 2 2 Hikaridai, Seika cho, Soraku gun, Kyoto 619 0288, Japan
    Perception 36:199-223. 2007
    ..We argue that the illusion arises owing to a convexity preference when the raw data have ambiguous interpretations. However, using a familiar object with typical orientation, shading, and pigmentation greatly enhances the effect...
  92. ncbi The structure of three-dimensional object representations in human vision: evidence from whole-part matching
    E Charles Leek
    Centre for Cognitive Neuroscience, School of Psychology, University of Wales, Bangor, United Kingdom
    J Exp Psychol Hum Percept Perform 31:668-84. 2005
    ..The results are interpreted in terms of a surface-based model of 3D shape representation, which proposes edge-bounded 2-dimensional polygons as basic primitives of surface shape...
  93. ncbi Aging and the visual, haptic, and cross-modal perception of natural object shape
    J Farley Norman
    Department of Psychology, Western Kentucky University, Bowling Green 42101 1030, USA
    Perception 35:1383-95. 2006
    ..Overall, the results of the experiments reveal that older observers can effectively perceive 3-D shape from both vision and haptics...
  94. pmc Reduced crowding and poor contour detection in schizophrenia are consistent with weak surround inhibition
    Valentina Robol
    Department of General Psychology, University of Padua, Padua, Italy
    PLoS ONE 8:e60951. 2013
    ..Here, we show that this failure actually originates from a combination of poor encoding of local orientation and abnormal processing of visual context...
  95. ncbi Are discrimination thresholds a valid measure of variance for judgments of slant from texture?
    James T Todd
    Department of Psychology, Ohio State University, Columbus, OH, USA
    J Vis 10:20.1-18. 2010
    ....
  96. ncbi Shape and size discrimination compared
    Jacob Nachmias
    Department of Psychology, University of Pennsylvania, 3401 Walnut St, Philadelphia, PA 19104, USA
    Vision Res 51:400-7. 2011
    ..This interaction between type of task and mode of presentation, may be due to the increased amount of correlation between test and standard figures of the encoding noise common to the two dimensions of each figure...
  97. ncbi Effects of pictorially-defined surfaces on visual search
    Hiromi Morita
    Visual Cognition Group, Human Science and Biomedical Engineering, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 6, Tsukuba, Ibaraki 305 8566, Japan
    Vision Res 43:1869-77. 2003
    ....
  98. ncbi Perception of three-dimensional shape from specular highlights, deformations of shading, and other types of visual information
    J Farley Norman
    Department of Psychology, Western Kentucky University
    Psychol Sci 15:565-70. 2004
    ....
  99. ncbi An object for an action, the same object for other actions: effects on hand shaping
    Caterina Ansuini
    Dipartimento di Psicologia Generale, Universita di Padova, Via Venezia 8, 35131, Padova, Italy
    Exp Brain Res 185:111-9. 2008
    ..The theoretical approach within which we frame our discussion considers internal models of anticipatory control which may provide a suitable explanation of our results...
  100. ncbi Face recognition with multi-tone and two-tone photographic negatives
    C H Liu
    Department of Psychology, McGill University, Montreal, Quebec, Canada
    Perception 26:1289-96. 1997
    ..The advantage of multi-tone over two-tone negatives can be attributed to preserved facial information carried by the high-spatial-frequency components of the image...
  101. ncbi The construction of perceptual grouping displays using GERT
    Maarten Demeyer
    Laboratory of Experimental Psychology, University of Leuven K U Leuven, Tiensestraat 102, Bus 3711, 3000, Leuven, Belgium
    Behav Res Methods 44:439-46. 2012
    ..A generic rendering engine grants access to a variety of element-drawing functions, including Gabors, Gaussians, letters, and polygons...

Research Grants64

  1. FUNCTIONAL ORGANIZATION OF EXTRASTRIATE VISUAL CORTEX
    David Van Essen; Fiscal Year: 2005
    ..neuronal populations in area V2 and whether neurons in V2 are directly implicated in specific aspects of form perception. A third project will study the representation of three-dimensional shapes in area V4...
  2. Visual Form Perception Produced by Electrically Stimulating Human Visual Cortex
    Daniel Yoshor; Fiscal Year: 2013
    ..abstract_text> ..
  3. Inter-Areal Cooperativity During Perception of Visual Contours
    Anna W Roe; Fiscal Year: 2010
    ..This is an area involved in form perception and visual attention. We will study how the organization of area V4 relates to form perception and attention...
  4. Dissecting the neural circuits for face perception in macaque inferotemporal cort
    DORIS YING TSAO; Fiscal Year: 2013
    ..The face patch system offers a unique opportunity to dissect the neural mechanisms underlying form perception, because the system is specialized to process one class of complex forms, and because its computational ..
  5. Brain Organization: Clues from Sign Aphasia
    Ursula Bellugi; Fiscal Year: 2006
    ..discourse) and to study their relation to similar non-linguistic perceptual abilities such as motion and form perception, gesture comprehension, and aspects of spatial processing. (3)...
  6. DEVELOPMENT OF FORM PERCEPTION IN INFANCY
    MARTIN BANKS; Fiscal Year: 1993
    ..We will examine the relationship between these phase anomalies and infants' phase sensitivity...
  7. Non-retinotopic Mechanisms of Dynamic Form Perception in Human Vision
    Haluk Ogmen; Fiscal Year: 2010
    ..The broad long-term objective of this research is to elucidate the mechanisms underlying visual form perception under its natural dynamic conditions...
  8. MOTION AND FORM IN VISION
    EDWARD ADELSON; Fiscal Year: 1999
    ..The proposed research is to conduct experimental and theoretical research on the problem of integrating form perception and the perception of motion...
  9. THREE-DIMENSIONAL TACTILE AND VISUAL FORM PERCEPTION
    Kenneth Johnson; Fiscal Year: 2003
    ..There are two compelling reasons to undertake the study of 3D form perception. The first is that 3D form perception is a paradigm of sensory integration in the brain...
  10. The Tuning for Complex Visual Stimuli in V1
    Aniruddha Das; Fiscal Year: 2006
    The long-term goal of this work is to understand the neural mechanisms of visual form perception. The current project aims to study the processing of modestly complex visual stimuli such as smooth contours, junctions and texture ..
  11. COLOR CONTRAST ADAPTATION
    Michael Webster; Fiscal Year: 1999
    ..of light adaptation (to the mean luminance and chromaticity in the stimulus); and (3) how color and form perception are influenced by adaptation to spatial stimuli...
  12. Post-Attentive Vision
    Jeremy Wolfe; Fiscal Year: 2007
    ..Taken together, the results of this program of research will test hypotheses that tie our understanding of visual search to our understanding of short and longer term visual memory. [unreadable] [unreadable]..
  13. PERCEPTUAL REPRESENTATION OF 3D SURFACES
    James Todd; Fiscal Year: 2001
    ....
  14. PSYCHOPHYSICAL STRUCTURE OF HUMAN VISION
    Jeremy Wolfe; Fiscal Year: 2003
    ..He will expand the Guided Search model to handle additional data (e.g. eye movements in visual search and the "attentional blink"). ..
  15. The First Half Second
    Bruno Breitmeyer; Fiscal Year: 2003
    ..The workshop will be held at the University of Houston from November 1 through November 3, 2003. ..
  16. TRANSMISSION OF INFORMATION IN THE VISUAL SYSTEM
    Denis G Pelli; Fiscal Year: 2010
    ..Thus techniques from cognition, perception, statistical learning theory, and physiology together will reveal what is computed where, in the brain, when an observer identifies an object. ..
  17. Psychophysics and modeling of structure-from-motion
    JULIAN FERNANDEZ; Fiscal Year: 2005
    ..Knowing how the visual system computes SFM is not only essential for understanding the brain per se, but also important for finding psychophysical diagnostic tools for pinpointing potential areas of brain damage. ..
  18. Emotion and Memory
    Chad Marsolek; Fiscal Year: 2004
    ..It also should help to provide new ways to conceptualize debilitating memories in post-traumatic stress disorder (and some phobias) and to suggest new treatments for such afflictions. ..
  19. MECHANISMS OF COLOR DETECTION, INDUCTION AND ADAPTATION
    Qasim Zaidi; Fiscal Year: 2010
    ..The methods developed here will be useful in identifying functional consequences of color vision deficits. PHS 398 (Rev. 05/01) Page 2 Principal Investigator/Program Director (Last, first, middle): ZAIDI, QASIM ..
  20. Effectiveness Trial of Attention Shaping for Schizophrenia
    Steven M Silverstein; Fiscal Year: 2010
    ....
  21. AGING AND PERFORMANCE OF COGNITIVE AND PERCEPTUAL TASKS
    GEORGE ANDERSEN; Fiscal Year: 2007
    ..The results of this research will be beneficial in understanding the increased accident risk associated with age. ..
  22. The cognitive neuroscience of body knowledge
    H Coslett; Fiscal Year: 2007
    ..Understanding the cerebral basis of motor control and the body schema is likely to contribute substantially to the development of interventions that target these representations. [unreadable] [unreadable]..
  23. CRCNS: A model-based investigation of face processing in autism
    Maximilian Riesenhuber; Fiscal Year: 2007
    ..The relevance of this research to public health lies in its direct application of the results of this research program to achieve a better understanding of impairments found within and outside the autism spectrum. ..
  24. NORMAL AND ABNORMAL DEVELOPMENT OF SPATIAL VISION
    Anthony Norcia; Fiscal Year: 2008
    ..This study will also determine whether nasalward/temporal biases previously reported for large field uniform stimuli propagate to the figure/ground segmentation process. ..
  25. Fractionating visual face perception
    Richard Russell; Fiscal Year: 2008
    ..The second is that prosopagnosia results from deficits in form perception, and the third is that it results from deficits in texture perception...
  26. Multimodally encoded spatial images in sighted and blind
    JACK M contact LOOMIS; Fiscal Year: 2010
    ..More generally, this knowledge will lead to improved tests of spatial cognition that will be useful in better understanding the deficits in knowledge and behavior resulting from diseases, such as Alzheimer's, and brain damage. ..
  27. Infant Roots of Later Cognition
    Susan A Rose; Fiscal Year: 2010
    ..Identifying early antecedents of later deficits has profound implications for intervention, assessment,and remediation, as well as for understanding the nature of the infant mind. ..
  28. Development of Motion Processing in Human Infants
    Karen Dobkins; Fiscal Year: 2008
    ..abstract_text> ..
  29. VISUAL COMPUTATIONS FOR MOTOR CONTROL
    DAVID KNILL; Fiscal Year: 2009
    ....
  30. Form and Motion Integration
    Anthony Norcia; Fiscal Year: 2008
    ..abstract_text> ..
  31. MONOCULAR DISTANCE PERCEPTION FOR REACHING AND GRASPING
    Geoffrey P Bingham; Fiscal Year: 2010
    ..The knowledge to be gained from this research is essential for formulating effective physical therapies for the elderly or children with DCD, or for learning to use visual aids and prosthetic limbs. ..
  32. The Development of Visual Integration & Attention: A High-Density EEG Study
    Melanie Palomares; Fiscal Year: 2008
    ..unreadable] [unreadable] [unreadable]..
  33. Understanding the mechanisms that control the dynamics of perceptual switches
    Satoru Suzuki; Fiscal Year: 2010
    ....
  34. Cognitive neuroscience of temporal processing
    H Branch Coslett; Fiscal Year: 2010
    ..Finally, we propose to use transcranial magnetic stimulation to identify specific brain regions that are necessary for normal temporal processing. ..
  35. The formation of visual objects
    Jacob Feldman; Fiscal Year: 2007
    ..This research may lead to technological advancement in the area of computer vision, as well as to better understanding of disorders of perceptual organization such as visual agnosia and dyslexia. [unreadable] [unreadable]..
  36. Processing object transformations in human visual cortex
    Scott Murray; Fiscal Year: 2004
    ..In all of the experiments, we will use a novel fMRI adaptation technique to characterize tuning functions in specified visual areas. ..
  37. SPATIAL AND TEMPORAL INTEGRATION IN OBJECT PERCEPTION
    PHILIP KELLMAN; Fiscal Year: 2004
    ..The results will have manifold implications for understanding normal and impaired human function, for constructing artificial (including robotic) vision systems for probing the neural mechanisms of perception. ..
  38. DEVELOPMENT OF FORM, RIVALRY AND BINOCULARITY
    Anthony Norcia; Fiscal Year: 2003
    ....
  39. SPEED OF INFORMATION PROCESSING IN INFANCY
    Susan Rose; Fiscal Year: 2003
    ..Developmental curves will be compared for cross-sectional and longitudinal samples and across domains (faces and objects). ..
  40. NAVIGATING WITHOUT VISION--BASIC AND APPLIED RESEARCH
    JACK LOOMIS; Fiscal Year: 2002
    ..The experiments on spatial learning by preview compare the learning of a route by walking vs. auditory or haptic exposure. ..
  41. SPATIAL INFLUENCES ON LANGUAGE FUNCTION
    H Coslett; Fiscal Year: 2002
    ..abstract_text> ..
  42. CUTANEOUS CONTROL OF EXPLORATORY HAND MOVEMENT
    ALLAN SMITH; Fiscal Year: 2001
    ..Ultimately both the prehension and tactile exploration tasks have promise as diagnostic and therapeutic techniques to aid in rehabilitation medicine with stroke patients and patients with peripheral neuropathies. ..
  43. BODY REPRESENTATIONS--NEUROPSYCHOLOGY AND ANATOMIC BASIS
    H Coslett; Fiscal Year: 2001
    ..The potential clinical significance of this work is also clear. If, as hypothesized, the body schema is crucial to action, interventions targeting this representations may have important therapeutic implications. ..
  44. Viewpoint Invariance in Infant's Perception of Objects
    Peter Gerhardstein; Fiscal Year: 2005
    ..abstract_text> ..
  45. TACTILE PICTURES AND THE VISUALLY IMPAIRED
    MORTON HELLER; Fiscal Year: 2001
    ..A number of illusions which occur in vision will also be investigated when presented tactually. In addition, top down influences as well as context effects will also be studied. ..
  46. Visual Adaptation, Selective Attention, and Shape Coding
    Satoru Suzuki; Fiscal Year: 2005
    ..g., in the ventral "pattern processing stream" such as V4 and IT) and perception of global shape attributes. ..
  47. Spatial & Temporal Interactions in Brightness Perception
    Barbara Blakeslee; Fiscal Year: 2006
    ..abstract_text> ..
  48. Motor Imagery as a Measure of Pain Severity
    H Coslett; Fiscal Year: 2007
    ..Finally, as mental motor imagery tasks require minimal language capacity or abstract reasoning, we propose to investigate the use of these measures in subjects with cognitive impairment. ..
  49. Peripheral Visual Function of Children with Low Vision
    JOSEPH LAPPIN; Fiscal Year: 2006
    ..unreadable] [unreadable] [unreadable]..
  50. TRAINING IN VISION RESEARCH
    Anthony Norcia; Fiscal Year: 2006
    ..The INRSA component will fund exclusively fellows with U.S. residency certification while the other institutional components will fund both the remaining U.S. and non-U.S. fellows on an equal basis. ..
  51. Comparitive Antipsychotic Drug Actions on Brain Neurochemistry
    Carol Tamminga; Fiscal Year: 2007
    ..Concentration on mouse behaviors, neurochemistry and behavior will advance studies aimed at kinetic applications. ..
  52. Neural substrates of attention and orienting
    ANNE SERENO; Fiscal Year: 2007
    ..Finally, the results of this proposal will have important implications for our understanding and modeling of the relation between attention and overt orienting. ..
  53. ORGANIZATION AND CONTROL OF MOVEMENT
    JOHN SOECHTING; Fiscal Year: 2007
    ..Providing sensory feedback would clearly enhance the efficacy of brain-machine interfaces and these results will provide new information about the normal utilization of sensory inflow in the control of movements. ..
  54. RETRIEVAL PRACTICE IN LEARNING AND MEMORY
    Harold Pashler; Fiscal Year: 2003
    ..Experimental and computational studies are outlined to determine the possible benefits of fading and explore their possible implications for neural-computational bases of learning. ..
  55. Information transfer through ganglion cells
    Barry Lee; Fiscal Year: 2010
    ..abstract_text> ..
  56. Image Stabilization in the Retinal Periphery
    ELISABETH FINE; Fiscal Year: 2004
    ..Once validated, this technique will allow us to test hypotheses regarding the specific area of PRL in patients with ARMD. ..
  57. Chronometry of amygdala response to affective stimuli
    Christine Larson; Fiscal Year: 2005
    ..Thus, the major aim of the proposed study is to further examine the dynamic process of the neural substrates of emotional experience, including both time course and magnitude of the neural instantiation of affective processes. ..
  58. BIOLOGICAL BASIS OF BEHAVIOR
    Charles Gilbert; Fiscal Year: 2006
    ..The training is at the graduate level, and usually lasts from 4 to 6 years. ..