Establishment of a secondary drive based on thirst: a replication

In order to establish a secondary drive based on thirst, 16 male albino rats were deprived of water for 23 hours per day for 14 days in square cages. At the end of each 23-hour period, the Ss were placed in triangular cages with free access to water for 1/2 hour followed by 1/2 hour in a circular cage with no water available. On day 15 the Ss were divided into two groups following satiation in the triangular cage. The control Ss were placed in the circular cages with water present for the first time, and experimental Ss were placed in the square cages with water present for the first time. During this 1/2-hour period the experimental Ss drank significantly more than the control Ss which indicated the presence of thirst fear in the experimental group.