June 2004
Volume 4, Issue 8
Free
Vision Sciences Society Annual Meeting Abstract  |   August 2004
Partially distributed representations of objects and faces in ventral temporal cortex: evidence from the structure of the object categories and neural response patterns
Author Affiliations
  • Fang Jiang
    The University of Texas at Dallas, USA
  • Alice J. O'Toole
    The University of Texas at Dallas, USA
  • Hervé Abdi
    The University of Texas at Dallas, USA
  • James V. Haxby
    Princeton University, USA
Journal of Vision August 2004, Vol.4, 903. doi:10.1167/4.8.903
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      Fang Jiang, Alice J. O'Toole, Hervé Abdi, James V. Haxby; Partially distributed representations of objects and faces in ventral temporal cortex: evidence from the structure of the object categories and neural response patterns. Journal of Vision 2004;4(8):903. doi: 10.1167/4.8.903.

      Download citation file:


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

      ×
  • Supplements
Abstract

Object and face representations in ventral temporal cortex were investigated by combining data from a computational model of object classification with neural response data from a functional neuroimaging experiment. A pattern-based classification algorithm learned to categorize individual brain maps according to the object category being viewed by the subject. An identical algorithm learned to classify an image-based, view dependent representation of the stimuli. We applied principal component analysis followed by discriminant analysis to both classification problems. The confusability of the object categories for the stimulus representations and the neural response maps was measured by d'. We found high correlations between the d' confusability data for the stimulus representations and the brain activity maps. This occurred even with the inclusion of multiple views of objects, and when high spatial frequency “line drawings” of the stimuli were used to test the object classification model. Consistent with a distributed representation of objects in VT cortex, the data indicate that object categories with shared image-based attributes have shared neural structure

Jiang, F., O'Toole, A. J., Abdi, H., Haxby, J. V.(2004). Partially distributed representations of objects and faces in ventral temporal cortex: evidence from the structure of the object categories and neural response patterns [Abstract]. Journal of Vision, 4( 8): 903, 903a, http://journalofvision.org/4/8/903/, doi:10.1167/4.8.903. [CrossRef]
Footnotes
 Supported by a grant to AO and HA from ONR
×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×