Responses of cat pulvinar neurons to moving visual stimuli

Autor: B. A. Harutiunian-Kozak, G E Grigorian, Dec K, Hekimian Aa
Rok vydání: 1979
Předmět:
Zdroj: Neurophysiology. 10:252-258
ISSN: 1573-9007
0090-2977
DOI: 10.1007/bf01071716
Popis: Responses of 114 pulvinar neurons to moving visual stimuli were studied. Most (79) neurons possessed spontaneous activity (10–25 spikes/sec). Of 59 neurons tested, 31 responded to stimulation of both retinas and 28 to stimulation only of the contralateral retina. Of 114 neurons, 41 responded only to movement of black objects, while the rest responded to movement of both black and light objects. According to the character of their responses to movement the neurons were divided into two main groups. The first group consisted of neurons sensitive to the direction of motion and responding with a spike discharge to movement in one direction and by inhibition to movement in the opposite direction. The second group included neurons insensitive to the direction of motion and responding by an equal number of discharges to movements in two opposite directions. Besides these two main groups, other neurons responding to movement in two opposite directions by discharges with different temporal distribution and also neurons which changed the character of their response from nondirectional to directional depending on the size of the moving stimulus, were found.
Databáze: OpenAIRE
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