Presentation 1994/6/28
Regional difference in variability of the neural representations of visual information in the hierarchical visual areas of the macaque brain
Hide-aki Saito, Eiki Hida, Hidenori Nagao, Kunimitsu Kanai,
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Abstract(in English) We studied variability of visual responses of cells in the brain areas V4(visual 4,an intermediate stage of the hierarchy)and IT(inferior temporal area,the final stage for object vision)of adult macaque monkeys.V4 cells gave responses of a relatively constant magnitude to the repeated stimulation with the best stimulus.In contrast,IT cells changed their responsiveness to the repeated stimulation.We suggest that this difference in response variability would reflect the arear difference of a top -down modulation:Modulation should be quick and strong in the area IT because the meaning of an object changes according to the change in behavioral context,while such modulation might only be working during early visual experience in the area V4,the function of which seems to be the feature extraction.
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Keyword(in English) visual system / hierarchical processing / representation of information / variability / top-down modulation / areal difference
Paper # NC94-22
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Committee NC
Conference Date 1994/6/28(1days)
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Registration To Neurocomputing (NC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Regional difference in variability of the neural representations of visual information in the hierarchical visual areas of the macaque brain
Sub Title (in English)
Keyword(1) visual system
Keyword(2) hierarchical processing
Keyword(3) representation of information
Keyword(4) variability
Keyword(5) top-down modulation
Keyword(6) areal difference
1st Author's Name Hide-aki Saito
1st Author's Affiliation Faculty of Engineering,Tamagawa University()
2nd Author's Name Eiki Hida
2nd Author's Affiliation Faculty of Engineering,Tamagawa University
3rd Author's Name Hidenori Nagao
3rd Author's Affiliation Faculty of Engineering,Tamagawa University
4th Author's Name Kunimitsu Kanai
4th Author's Affiliation Faculty of Engineering,Tamagawa University
Date 1994/6/28
Paper # NC94-22
Volume (vol) vol.94
Number (no) 129
Page pp.pp.-
#Pages 6
Date of Issue