Gravitational Stress: Changes in Cortical Excitability

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Science  25 Sep 1964:
Vol. 145, Issue 3639, pp. 1458-1459
DOI: 10.1126/science.145.3639.1458


Evoked responses, recorded from the visual cortex, are enhanced during positive (head to tail) acceleration, and during cerebral hypotension induced by hemorrhage. The phenomenon observed during positive acceleration may therefore be due, at least in part, to its hypotensive effect, but the increased somatic stimulation must also be considered.