Effects of intravenous glucose injections on learning, general activity and hunger drive.

Abstract

Using devices to insure automatic injection of glucose or control solutions in dogs and rabbits, the effect of glucose injections as reinforcement for position preferences. While no significant effect of glucose reinforcement appeared in the dog, rabbits showed such differences when on 3, 4 or 6 days food deprivation. Significant relationships for rabbits among learning score and amount of starvation, changes in blood sugar and weight loss. In other experiments it was shown that intravenous glucose did not change the general activity level but did reduce tendency to eat.