August 2010
Volume 10, Issue 7
Free
Vision Sciences Society Annual Meeting Abstract  |   August 2010
Robustness to image clutter in human visual cortex
Author Affiliations
  • Gabriel Kreiman
    Department of Ophthalmology, Children's Hospital, Harvard Medical School
    Center for Brain Science, Harvard University
    Swartz Center for Theoretical Neuroscience, Harvard University
  • Yigal Agam
    Department of Ophthalmology, Children's Hospital, Harvard Medical School
  • Hesheng Liu
    Department of Ophthalmology, Children's Hospital, Harvard Medical School
  • Calin Buia
    Department of Ophthalmology, Children's Hospital, Harvard Medical School
  • Alexander Papanastassiou
    Department of Neurosurgery, Children's Hospital, Harvard Medical School
  • Alexandra Golby
    Department of Neurosurgery, Brigham and Women's Hospital
  • Joseph Madsen
    Department of Neurosurgery, Children's Hospital, Harvard Medical School
Journal of Vision August 2010, Vol.10, 983. doi:10.1167/10.7.983
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      Gabriel Kreiman, Yigal Agam, Hesheng Liu, Calin Buia, Alexander Papanastassiou, Alexandra Golby, Joseph Madsen; Robustness to image clutter in human visual cortex. Journal of Vision 2010;10(7):983. doi: 10.1167/10.7.983.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Visual recognition in natural scenes operates in the presence of multiple objects, background and occlusion. How the neural representation of images containing isolated objects extrapolates to cluttered images remains unclear. The responses of neurons along the monkey ventral visual cortex to cluttered images show varying degrees of suppressive effects. Attention could alleviate suppression by enhancing responses to specific features or locations. Yet, it seems difficult to account for the accurate and fast recognition capacity of primates exclusively by serial attentional shifts. Here we recorded intracranial field potentials from 672 electrodes in human visual cortex while subjects were presented with 100 ms flashes of images containing either one or two objects. We could rapidly and accurately read out information about objects in single trials in cluttered images from the physiological responses. These observations could account for human fast recognition performance and are compatible with simple hierarchical architectures proposed for immediate recognition.

Kreiman, G. Agam, Y. Liu, H. Buia, C. Papanastassiou, A. Golby, A. Madsen, J. (2010). Robustness to image clutter in human visual cortex [Abstract]. Journal of Vision, 10(7):983, 983a, http://www.journalofvision.org/content/10/7/983, doi:10.1167/10.7.983. [CrossRef]
Footnotes
 NIH, NSF, Whitehall Foundation, Lions Foundation, Klingenstein Fund.
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