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Synaptic action of layer I fibers on cells in cat striate cortex
S Nakajima1, Y Komatsu, K Toyama
1Department of Psychiatry, Kyoto Prefectural University of Medicine, Japan.
Brain Research
|August 2, 1988
Abstract:
The synaptic action of layer I (LI) and white matter (WM) fibers in cat striate cells was studied intracellularly in slice preparations. LI stimulation produced excitation only in layer II-III and V cells, and inhibition broadly in layer II-VI cells. WM stimulation produced both excitation and inhibition in most cortical cells. Kynurenate, a glutamate antagonist, strongly depressed WM-evoked excitation, but it left LI-evoked excitation considerably unaffected.