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Evidence has accumulated which indicates that the hypothalamus may be concerned in certain elements of behavior the total pattern of which appears to be related to the outward manifestation of emotion. Stimulation of the hypothalamus in the region occupied by the medial bundle of the forebrain in the lateral part of the hypothalamus has been observed by Kabat and associates to cause mydriasis, increased respiration, struggling movements with clawing and biting, salivation, horripilation and sweating on the pads of the feet. In addition, cessation of peristalsis was noted, and sometimes evacuation of the bladder (Kabat, Anson, Magoun and Ranson1; Kabat, Magoun and Ranson2; Ranson, Kabat and Magoun3; Kabat,4and Kabat, Magoun and Ranson5). The points of stimulation were shown to be restricted largely to the lateral hypothalamic area. Similar results were obtained from anesthetized and unanesthetized cats. These reactions were not elicited when the infundibular |
