4. HYPOTHALAMIC ACTIVATION UPON ELECTRICAL ACTIVITIES OF PALEO- AND ARCHICORTEX
1960 年 2 巻 1-2 号 p. 63-76
詳細
1960 年 2 巻 1-2 号 p. 63-76
Electrical activities of the neo-, paleo- and archicortex with their related subcortical nuclei were studied in unanesthetized curarized cats, and the following results were obtained.
1.Dissociation of the activity level between neo-, paleo- and archicortex appeared under some animal conditions or influences of pharmacological agents.
2. Comparison of the effects of electrical stimulation of the posterior part of the hypothalamus and midbrain reticular formation revealed that the activating effect of the posterior part of the hypothalamus on the hippocampus was stronger than that of midbrain reticular formation and effect of the posterior part of the hypothalamus on the neocortex was weaker than the reticular formation.
3. Anterior part of the hypothalamus had the specific activating effect upon the electrical activities of the paleocortex and its subcortical nuclei (amygdala and olfactory bulb).
4. Hippocampal arousal pattern could be desynchronized by high frequency electrical stimulation of the anterior part of the hypothalamus, septal area and amygdaloid nucleus.
