Partial Delay and Partial Reinforcement Effects on Resistance to Continuous Delay: Some Effects of Sequential Manipulations

Abstract

Rats were trained in a straight-alley runway in two replications of 24 rats each. Two groups received partial reinforcement training with one or three successive nonreward trials (N-length), two groups received partial delay training with one and three successive delayed trials (D-length), and two additional groups received immediate continuous reinforcement. Following training all groups were shifted to continuous delay. The results indicated that D-length increased resistance to continuous delay, however, N-length did not have the corresponding effect. The performance of both N-length groups equalled that of the D-length 3 group, but the D-length 1 group was inferior and not different from the continuously reinforced control groups. These results were discussed in terms of Capaldi's (1967) sequential theory of instrumental learning.

References

Amsel

Partial reinforcement effects on vigor and persistence: Advances in frustration theory derived from a variety of within-subjects experiments. In Spence

K. W.

Spence

J. T.

(Eds.), The psychology of learning and motivation. Vol. 1. New York: Academic Press, 1967. Pp. 1–65.

Campbell

P. E.

Knouse

S. B.

Extinction following delayed reward: A review. Psychonomic Monograph Supplements, 1972, 4, No. 15 (Whole No. 63).

Capaldi

E. J.

A sequential hypothesis of instrumental learning. In Spence

K. W.

Spence

J. T.

(Eds.), The psychology of learning and motivation. Vol. 1. New York: Academic Press, 1967. Pp. 67–156.

Capaldi

E. J.

Kassover

Sequence, number of nonrewards, anticipation, and intertrial interval in extinction. Journal of Experimental Psychology, 1970, 84, 470–476.

Dyck

D. G.

Mellgren

R. L.

Nation

J. R.

Punishment of appetitively reinforced instrumental behavior: Factors affecting response persistence. Journal of Experimental Psychology, 1974, 102, 125–132.

Shanab

M. E.

Positive transfer between nonreward and delay. Journal of Experimental Psychology, 1971, 91, 98–102.

Shanab

M. F.

Birnbaum

D. W.

Durability of the partial reinforcement and partial delay of reinforcement extinction effects after minimal acquisition training. Animal Learning and Behavior, 1974, 2, 81–85.

Wagner

A. R.

Frusttation and punishment. In Naber

R. N.

(Ed.), Current research in motivation. New York: Holt, Rinehart & Winston, 1966. Pp. 229–239.

Wike

E. L.

Mellgren

R. L.

Wike

S. S.

Runway performance as a function of delayed reinforcement and delay-box confinement. Psychological Record, 1968, 18, 9–18.