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. 1978 Mar;29(2):151–160. doi: 10.1901/jeab.1978.29-151

Behavioral contrast as differential time allocation

K Geoffrey White
PMCID: PMC1332743  PMID: 16812043

Abstract

In Experiment I, hooded rats were exposed to multiple variable-interval schedules of reinforcement in which manipulanda and reinforcement magazines at opposite ends of the experimental chamber were associated with the different components. Time allocated to each component was measured by recording the time spent by the subject in the appropriate half of the chamber. Positive behavioral contrast was observed for the comparison between multiple variable-interval 30-second variable-interval 30-second and multiple variable-interval 30-second variable-interval 90-second conditions for both response frequency and time allocation measures, but not for mean local response rate (response frequency per time allocated to a component). In Experiment II, rats were exposed to multiple variable-time schedules in which reinforcement was response independent. Time allocated to each component was measured for two conditions, multiple variable-time 30-second variable-time 30-second and multiple variable-time 30-second variable-time 90-second. Positive behavioral contrast of time allocation was exhibited. The results indicated that time allocation was differentially sensitive to changes in reinforcement probability, and that behavioral contrast may result from the differential allocation of time to the different components of the multiple schedule.

Keywords: time allocation, behavioral contrast, multiple schedules, variable-interval schedules, variable-time schedules, response-independent reinforcement, lever pressing, rats

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Arnett F. B. A local-rate-of-response and interresponse-time analysis of behavioral contrast. J Exp Anal Behav. 1973 Nov;20(3):489–498. doi: 10.1901/jeab.1973.20-489. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Baum W. M., Rachlin H. C. Choice as time allocation. J Exp Anal Behav. 1969 Nov;12(6):861–874. doi: 10.1901/jeab.1969.12-861. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Bouzas A., Baum W. M. Behavioral contrast of time allocation. J Exp Anal Behav. 1976 Mar;25(2):179–184. doi: 10.1901/jeab.1976.25-179. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Buck S. L., Rothstein B., Williams B. A. A re-examination of local contrast in multiple schedules. J Exp Anal Behav. 1975 Nov;24(3):291–301. doi: 10.1901/jeab.1975.24-291. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Gamzu E., Schwartz B. The maintenance of key pecking by stimulus-contingent and response-independent food presentation. J Exp Anal Behav. 1973 Jan;19(1):65–72. doi: 10.1901/jeab.1973.19-65. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Gutman A., Sutterer J. R., Brush F. R. Positive and negative behavioral contrast in the rat. J Exp Anal Behav. 1975 May;23(3):377–383. doi: 10.1901/jeab.1975.23-377. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Herrnstein R. J. On the law of effect. J Exp Anal Behav. 1970 Mar;13(2):243–266. doi: 10.1901/jeab.1970.13-243. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Menlove R. L. Local patterns of responding maintained by concurrent and multiple schedules. J Exp Anal Behav. 1975 May;23(3):309–337. doi: 10.1901/jeab.1975.23-309. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Nevin J. A., Shettleworth S. J. An analysis of contrast effects in multiple schedules. J Exp Anal Behav. 1966 Jul;9(4):305–315. doi: 10.1901/jeab.1966.9-305. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Pear J. J., Wilkie D. M. Contrast and induction in rats on multiple schedules. J Exp Anal Behav. 1971 May;15(3):289–296. doi: 10.1901/jeab.1971.15-289. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. REYNOLDS G. S. Behavioral contrast. J Exp Anal Behav. 1961 Jan;4:57–71. doi: 10.1901/jeab.1961.4-57. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Spealman R. D. Interactions in multiple schedules: the role of the stimulus-reinforcer contingency. J Exp Anal Behav. 1976 Jul;26(1):79–93. doi: 10.1901/jeab.1976.26-79. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Stiers M., Silberberg A. Lever-contact responses in rats: automaintenance with and without a negative response-reinforcer dependency. J Exp Anal Behav. 1974 Nov;22(3):497–506. doi: 10.1901/jeab.1974.22-497. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Terrace H. S. Discrimination learning, the peak shift, and behavioral contrast. J Exp Anal Behav. 1968 Nov;11(6):727–741. doi: 10.1901/jeab.1968.11-727. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Williams B. A. Elicited responding to signals for reinforcement: the effects of overall versus local changes in reinforcement probability. J Exp Anal Behav. 1976 Sep;26(2):213–220. doi: 10.1901/jeab.1976.26-213. [DOI] [PMC free article] [PubMed] [Google Scholar]

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