Abstract
The consumption of norbormide-adulterated food or quinine-adulterated food by albino rats was monitored by the electric balance-computer systems. The consumption of norbormide- or quinine-adulterated food was low as compared with that of control powder food. The food approach behavior of norbormide-adulterated food was similar with that of quinine-adulterated food. and decreased as compared with that of control powder food. Initial feeding after the lights went off was also monitored by licking counter in the non-choice and two-choice methods. The rats licked the norbormide-adulterated food and control powder food like a machine-gun while rats did not lick the quinine-adulterated food. Accordingly, it was strongly suggested that bait-shyness with norbormide was induced by poison-based shyness.
