[Electrophysiologic study of hypothalamo-neocortical connections in Macaca mulatta monkeys]

In acute experiments on monkeys studies have been made on the character and functional properties of the EP as well as of extracellular neuronal reactions in the new cortex zones during stimulation of phylogenetically different parts of the hypothalamus. It was shown that most short-latency, low-threshold EP and neuronal responses in the new cortex of the monkeys are recorded during stimulation of the posterior and lateral hypothalamus. It was also demonstrated that the focus of maximum activity of short-latency evoked reactions is localized in the frontal associative cortex. Differences in the effects of the posterior and lateral hypothalamus on the new cortex in monkeys are discussed.