| Abstract: | The character and particular features of interaction between visual, auditory, and electrodermal afferent impulses on neurons of the pulvinar, posterolateral, and mediodorsal thalamic nuclei were studied in acute experiments on cats anesthetized with a mixture of pentobarbital and chloralose. Interaction discovered on cells of both groups of structures was of two types. In the first (the one most frequently found) only inhibition was observed or inhibition followed by facilitation of the response to testing stimulation; in the second type only facilitation or facilitation followed by inhibition of unit activity was found. Overall ability for interaction to take place on neurons of the mediodorsal nucleus was weaker than on cells of the pulvinar-posterolateral complex (P<0.05). Interaction was strongest on trisensory cells; it was also observed on monosensory cells or on cells which did not respond to isolated stimulation.Donetsk Medical Institute. Kemerovo Medical Institute. Translated from Neirofiziologiya, Vol. 10, No. 5, pp. 478–485, September–October, 1978. |
