Conclusions
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1.
Under the influence of stimulation of the mesencephalic reticular formation (MRF) activity of neurons in the visual cortex usually remains unchanged but may be either facilitated or depressed.
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2.
Under certain conditions bursts of synchronized impulses occur in response to photic stimulation at low frequencies and stimulation of MRF then abolishes the periodicity of the impulse discharge.
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3.
Since the periodicity of such bursts of synchronized impulses probably develops as the result of an inhibitory postsynaptic potential, the facilitation of cortical neurons by influences from MRF must be based on abolition of an inhibitory process.
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Narikashvili, S.P., Moniava, E.S. & Arutyunov, V.S. Mechanism of the influence of the reticular formation on cortical neurons. Neurosci Behav Physiol 1, 160–168 (1967). https://doi.org/10.1007/BF01124395
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DOI: https://doi.org/10.1007/BF01124395