[The mechanisms of the influence of the anterior and posterior hypothalamus on the electrical activity of the large hemispheres of the forebrain and on autonomic reactions in hens].
Studies have been made of the effect of stimulation of the anterior and posterior hypothalamus on the electrical activity of the hemispheres, arterial blood pressure, heart and respiration rates. Mainly desynchronizing mechanisms were revealed in the ascending influences from both the anterior and posterior hypothalamus. Concerning the descending influences, it was found that stimulation of the anterior hypothalamus evokes depressor reactions, whereas stimulation of the posterior hypothalamus results in pressor reactions. Peculiarities of evolutionary development of the ascending and descending mechanisms of the posterior and anterior hypothalamus are discussed.
Baklavadzhian
O G
OG
Pogosian
N L
NL
Arshakian
A V
AV
D000818:Animals; D001341:Autonomic Nervous System / Q000502:physiology*; D001921:Brain / Q000502:physiology*; D002645:Chickens / Q000502:physiology*; D004558:Electric Stimulation / Q000379:methods; D004562:Electrocardiography; D004569:Electroencephalography; D005260:Female; D007031:Hypothalamus / Q000502:physiology*; D007032:Hypothalamus, Anterior / Q000502:physiology*; D007034:Hypothalamus, Posterior / Q000502:physiology*; D012119:Respiration / Q000502:physiology
Issledovanie mekhanizmov vliianiia perednego i zadnego gipotalamusa na élektricheskuiu aktivnost' bol'shikh polushariĭ perednego mozga i na vegetativnye reaktsii u kur.