Disruption of appetite but not hunger or satiety following small lesions in the amygdala of rats.

摘要: Discretely localized lesions were made in the amygdala to examine how specifically they might alter various measures of feeding behavior male rats. Behavioral tests included spontaneous intake and body weight regulation, reactivity saccharin quinine solutions, conditioned taste aversion, response food deprivation, glucose gavage, teh dietary amino acid imbalance. Lesions virtually all regions disrupted some respect, but alterations specific tasks associated only with highly circumscribed brain damage. Body water intake, responses gavage long-term deprivation not altered by amygdala. The results provide evidence that, rat, may play a greater role appetite than hunger or safety. In particular, amygdaloid nuclei participate maintaining negative bias appetitive stimuli.