Heart rate changes after reinforcing brain stimulation in rats.
Cardiac responses to hypothalamic and septal stimulation are polyphasic, the first component being accelerative. As interstimulus intervals are decreased, only accelerative components appear, but prestimulus heart rates ("background levels") are decreased upon septal and are either increased or unchanged upon hypothalamic stimulation. The suggestion that parasympathetic responses accompany reinforcing brain stimulation was not supported.
D000818:Animals; D001769:Blood; D001921:Brain; D006321:Heart; D006339:Heart Rate; D007031:Hypothalamus; D051381:Rats; D013238:Stereotaxic Techniques
BLOOD; BRAIN; HYPOTHALAMUS