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      Matching Categorical Object Representations in Inferior Temporal Cortex of Man and Monkey

        , , , , , , ,

      Neuron

      Elsevier BV

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          Abstract

          Inferior temporal (IT) object representations have been intensively studied in monkeys and humans, but representations of the same particular objects have never been compared between the species. Moreover, IT's role in categorization is not well understood. Here, we presented monkeys and humans with the same images of real-world objects and measured the IT response pattern elicited by each image. In order to relate the representations between the species and to computational models, we compare response-pattern dissimilarity matrices. IT response patterns form category clusters, which match between man and monkey. The clusters correspond to animate and inanimate objects; within the animate objects, faces and bodies form subclusters. Within each category, IT distinguishes individual exemplars, and the within-category exemplar similarities also match between the species. Our findings suggest that primate IT across species may host a common code, which combines a categorical and a continuous representation of objects.

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          Author and article information

          Journal
          Neuron
          Neuron
          Elsevier BV
          08966273
          December 2008
          December 2008
          : 60
          : 6
          : 1126-1141
          Article
          10.1016/j.neuron.2008.10.043
          3143574
          19109916
          © 2008

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