論文

査読有り
2011年3月

Surround suppression by high spatial frequency stimuli in the cat primary visual cortex

EUROPEAN JOURNAL OF NEUROSCIENCE
  • Hironobu Osaki
  • ,
  • Tomoyuki Naito
  • ,
  • Osamu Sadakane
  • ,
  • Masahiro Okamoto
  • ,
  • Hiromichi Sato

33
5
開始ページ
923
終了ページ
932
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1111/j.1460-9568.2010.07572.x
出版者・発行元
WILEY-BLACKWELL

Surround suppression is a phenomenon whereby stimulation of the extraclassical receptive field suppressively modulates the visual responses of neurons in the primary visual cortex (V1) (also known as area 17). It is known that surround suppression tunes to spatial frequencies (SFs) that are much lower and broader than the frequencies to which the classical receptive field tunes. In this study, we tested the effects of varying SFs on surround suppression by using a circular sinusoidal grating patch that covered both the classical receptive field and the extraclassical receptive field. Using area-summation tuning curves, we found high-SF-tuned surround suppression in the cat V1. This high-SF-tuned surround suppression causes the SF tuning to shift to low SF for large stimuli. By simulating a model neuron lacking a suppressive surround mechanism, we confirmed that these preferred SF shifts do not occur in the absence of surround suppression. We surmise that the high-SF-tuned suppression, which shifts the preferred SF according to size, functionally contributes to the scale-invariant processing of visual images in V1.

リンク情報
DOI
https://doi.org/10.1111/j.1460-9568.2010.07572.x
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/21255126
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000287804500012&DestApp=WOS_CPL
ID情報
  • DOI : 10.1111/j.1460-9568.2010.07572.x
  • ISSN : 0953-816X
  • PubMed ID : 21255126
  • Web of Science ID : WOS:000287804500012

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