Conclusions
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1.
The application of strychnine to a localized area of the primary somatosensory cortex causes an increase in frequency of spontaneous discharge of its neurons with the appearance of paroxysmal bursts, and at the same time, depression (or even complete suppression) of spontaneous neuron activity in the anterior part of the middle suprasylvian gyrus.
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2.
Depression of spontaneous neuronal activity in the association area is also observed (even better) when the spontaneous activity of the neurons in this area is intensified by a previous application of weak strychnine solution.
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3.
Spontaneous activity of neurons of any other, nonassociative, cortical area (the anterior ectosylvian gyrus, for example), situated the same distance from the part of the somatosensory cortex poisoned by strychnine, remains unchanged under these conditions.
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4.
The application of strychnine to the association area of the middle suprasylvian gyrus does not change the spontaneous or paroxysmal activity of neurons in the primary somatosensory cortex.
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Narikashvili, S.P., Arutyunov, V.S. & Moniava, E.S. Effect of somatosensory cortex on spontaneous activity in association cortex. Neurosci Behav Physiol 1, 397–402 (1967). https://doi.org/10.1007/BF01126531
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DOI: https://doi.org/10.1007/BF01126531