Food-motivated performance in rats with ventromedial hypothalamic lesions: Effects of body weight, deprivation, and preoperative training

The effects of preoperative ingestive events on feeding and drinking behavior following brain damage

“…Preoperative weight reduction, without the operant training, does not produce this phenomenon (King & Gaston, 1976). This operant effect on rats has been found by others (Beatty, 1973;Beatty, Vilberg, Shirk, & Siders, 1975;King & Gaston , 1973, 1976Peters, Sensenig, & Reich , 1973;Porter & Allen , 1977), and, in an earlier study , was also found with monkeys (Hamilton & Brobeck, 1964).…”