Abstract
Three white rats, after 50 continuous reinforcements, were exposed successively, under dim illumination, to reinforcement delays of 1, 3, 5, 7.5, 10, 15, and 20 sec, with prolonged training at the 20-sec level. Behavior was maintained at each level, and an increase in interval was accompanied by an increase in post-reinforcement pause. Subsequently, under both 20- and 30-sec delays, the animals were tested during half of each daily session to determine the effect of introducing darkness during each delay interval. The result of this stimulus “support” was to regularize and increase response rate for each animal at both interval values.
Full text
PDF



Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- DEWS P. B. Free-operant behavior under conditions of delayed reinforcement. I. CRF-type schedules. J Exp Anal Behav. 1960 Jul;3:221–234. doi: 10.1901/jeab.1960.3-221. [DOI] [PMC free article] [PubMed] [Google Scholar]
- FERSTER C. B. Sustained behavior under delayed reinforcement. J Exp Psychol. 1953 Apr;45(4):218–224. doi: 10.1037/h0062158. [DOI] [PubMed] [Google Scholar]
- KELLEHER R. T., GOLLUB L. R. A review of positive conditioned reinforcement. J Exp Anal Behav. 1962 Oct;5:543–597. doi: 10.1901/jeab.1962.5-s543. [DOI] [PMC free article] [PubMed] [Google Scholar]