On the determinants of induction in responding for sucrose when food pellet reinforcement is upcoming.

Discusses rats' rates of leverpressing for low-concentration liquid-sucrose reinforcers in the first half of an experimental session. Increase in leverpressing rates when food pellet reinforcers will be available in the second half of the session; Induction effect resulting from food pellet reinforcement's increasing response rates; Control of induction by the conditions of reinforcement in the session.