[Bilateral mechanisms of interference resistance in the striate cortex]

Zhurnal Vysshei Nervnoi Deiatelnosti Imeni I P Pavlova

|July 1, 1975

Abstract:

It has been shown that in animals with an intact corpus callosum the influence of photic interference is mainfested above all in EP depression. The degree of EP depression is directly dependent on the strength of the interference and is in inverse relationship with the strength of the determined stimulus. Against the background of a weak interference an other effect is possible in some cases, i.e. facilitation of the EP. These facts are interpreted as a result of postresponse subnormality of neurones and as excitation summation respectively. Section of the corpus callosum results in a weakening of the depressing effect of the photic interference on the EP appearing in response to a determined stimulus, and in an enhanced facilitating influence of weak photic interferences. A stronger influence of binocular photic interference as compared with the monocular one was observed in intact and callosotomized animals. A conclusion has been reached that the split brain has a stronger interference resistance as compared with the intact one.

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Abstract:

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