Abstract
The effects of cholecystokinin (CCK) and satiety were compared in animals lever-pressing for rewarding electrical stimulation of the lateral hypothalamus. For some rats, conditions of food deprivation and satiation, respectively, increased or decreased responding whereas the self-stimulation behavior of other rats was unresponsive to these feeding manipulations. CCK, at doses thought to signal satiety, reduced the responding of all rats independent of whether they were, or were not, responsive to real satiety. This same result was obtained with the aversive agent lithium chloride. These data suggest that the reduced feeding observed following CCK administration is due to aversive consequences and not satiety.
Published Version
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