論文

査読有り
2014年9月

Face Inversion Decreased Information about Facial Identity and Expression in Face-Responsive Neurons in Macaque Area TE

JOURNAL OF NEUROSCIENCE
  • Yasuko Sugase-Miyamoto
  • ,
  • Narihisa Matsumoto
  • ,
  • Kaoru Ohyama
  • ,
  • Kenji Kawano

34
37
開始ページ
12457
終了ページ
12469
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1523/JNEUROSCI.0485-14.2014
出版者・発行元
SOC NEUROSCIENCE

To investigate the effect of face inversion and thatcherization (eye inversion) on temporal processing stages of facial information, single neuron activities in the temporal cortex (area TE) of two rhesus monkeys were recorded. Test stimuli were colored pictures of monkey faces (four with four different expressions), human faces (three with four different expressions), and geometric shapes. Modifications were made in each face-picture, and its four variations were used as stimuli: upright original, inverted original, upright thatcherized, and inverted thatcherized faces. A total of 119 neurons responded to at least one of the upright original facial stimuli. A majority of the neurons (71%) showed activity modulations depending on upright and inverted presentations, and a lesser number of neurons (13%) showed activity modulations depending on original and thatcherized face conditions. In the case of face inversion, information about the fine category (facial identity and expression) decreased, whereas information about the global category (monkey vs human vs shape) was retained for both the original and thatcherized faces. Principal component analysis on the neuronal population responses revealed that the global categorization occurred regardless of the face inversion and that the inverted faces were represented near the upright faces in the principal component analysis space. By contrast, the face inversion decreased the ability to represent human facial identity and monkey facial expression. Thus, the neuronal population represented inverted faces as faces but failed to represent the identity and expression of the inverted faces, indicating that the neuronal representation in area TE cause the perceptual effect of face inversion.

Web of Science ® 被引用回数 : 13

リンク情報
DOI
https://doi.org/10.1523/JNEUROSCI.0485-14.2014
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/25209284
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000341766900019&DestApp=WOS_CPL

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