Movement detection properties and structure of stationary receptive fields of single neurons in the cat extrastriate area 21a
Response patterns of single neurons in the extrastriate area 21a of the cat cortex to moving visual stimuli were studied, along with juxtaposition to the structure of their stationary receptive field. First, the precise mapping of stationary RFs was performed by flashing bright spots; then, movin...
Збережено в:
Видавець: | Інститут фізіології ім. О.О. Богомольця НАН України |
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Дата: | 2014 |
Автори: | , , , , , |
Формат: | Стаття |
Мова: | English |
Опубліковано: |
Інститут фізіології ім. О.О. Богомольця НАН України
2014
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Назва видання: | Нейрофизиология |
Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/148256 |
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Цитувати: | Movement detection properties and structure of stationary receptive fields of single neurons in the cat extrastriate area 21a / H.R. Aslanian, D.K. Khachvankian, B.A. Harutiunian-Kozak, G.G. Tokhmakhyan, T.S. Khachatrian, J.A. Kozak // Нейрофизиология. — 2014. — Т. 46, № 1. — С. 48-54. — Бібліогр.: 27 назв. — англ. |
Репозиторії
Digital Library of Periodicals of National Academy of Sciences of UkraineРезюме: | Response patterns of single neurons in the extrastriate area 21a of the cat cortex to moving
visual stimuli were studied, along with juxtaposition to the structure of their stationary
receptive field. First, the precise mapping of stationary RFs was performed by flashing bright
spots; then, moving visual stimuli of different shapes and sizes with two opposite contrasts
were presented. We found that the majority of investigated neurons with a homogenous
stationary RF organization demonstrate significant differences in their activity profiles
depending on the size, shape, and contrast of the applied moving visual stimulus. The data
obtained support a model in which the RF stationary structure undergoes specific dynamic
changes due to simultaneous activation of the RF surround by the moving visual image; this
provides more accurate incorporation of moving image information in movement detection. |
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