A cholinergic-sensitive channel in the cat visual system tuned to low spatial frequencies.
نویسندگان
چکیده
Visually evoked responses to counterphased gratings were recorded from the cat visual cortex before and after physostigmine administration. Physostigmine markedly reduced the responses to low spatial frequencies, but minimally affected the response to high frequencies. This effect is considered cholinergic since it could be reversed by atropine. These results support at least a two-channel model of spatial frequency responsivity.
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ورودعنوان ژورنال:
- Science
دوره 221 4615 شماره
صفحات -
تاریخ انتشار 1983