Accession Number : AD0681532

Title :   BRAIN STEM SYSTEMS AND BEHAVIOR.

Descriptive Note : Final scientific rept. 1 Jun 67-31 May 68,

Corporate Author : MILAN UNIV (ITALY) ISTITUTO DI PATOLOGIA MEDICA

Personal Author(s) : Bartorelli,Cesare ; Zanchetti,Alberto

Report Date : JUL 1968

Pagination or Media Count : 48

Abstract : During the year covered by this report, work has been performed along the following lines: (1) Regulation of circulation during the wakefulness-sleep cycle. Experiments performed in totally sympathectomized cats have shown that the hemodynamic pattern most usually observed during desynchronized sleep is greatly modified by sympathectomy. (2) Regulation of circulation during emotional behavior. (a) Fighting. Fighting was elicited in unanesthetized cats as a natural reaction to another cat, in which attack was induced by brain stimulation. (b) Preparation for fighting. Cardiovascular changes during preparation for lighting have been compared with those during actual fighting in unanesthetized cats. Several of the functions measured changed differently in the two conditions. It is suggested that some of these differences may derive from the exertion component of fighting which may overwhelm other central neural influences common to fighting and preparation for fighting and related to emotion. (Author)

Descriptors :   (*BEHAVIOR, BLOOD CIRCULATION), SLEEP, EMOTIONS, BRAIN, STIMULATION(PHYSIOLOGY), HYPOTENSION, BLOOD PRESSURE, RESISTANCE(BIOLOGY), HEART, MUSCLES, RELAXATION(PHYSIOLOGY), CATS, AUTONOMIC NERVOUS SYSTEM, BLOOD VESSELS, ITALY

Subject Categories : Anatomy and Physiology
      Medicine and Medical Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE