Effects of preoptic thermal stimulation on the ventromedial hypothalamic neurons in rats

The effects of temperature on food intake were observed on activities of 54 ventromedial hypothalamic neurons in rats in response to iontophoretically applied glucose and to preoptic thermal stimulation. The major response was that 16 neurons out of 22 facilitated by glucose in the satiety center were facilitated by a rise in preoptic temperature.