The Influence of Social Context and Absence of Marijuana Effects on Human Cooperative Behavior
Five groups of three healthy adult males (n = 15) participated in experiments designed to investigate the effects of social and behavioral context on human cooperative behavior and to determine whether marijuana effects on cooperative behavior were influenced by these factors. Using a time-based contingency, participation on lower probability activities during 3-, 4-, or 6.5-hr sessions was maintained by points that were exchanged for time to engage in higher probability activities. High- and low-probability activities were maintained by paying subjects different amounts of money for working on tasks. Sessions were conducted in socially isolated rooms, and each subject chose whether points earned while engaged in lower probability activities would be equally distributed to all subjects (cooperation) or kept by each subject individually (noncooperation). Subjects could monitor each others’ choices by observing illuminated panels in their rooms. The number of points available for choosing the noncooperative option was manipulated across sessions. In addition, social interaction between subjects varied across studies. Cooperative and noncooperative choice patterns were similar across sessions for all three subjects in each study, as were total session earnings. Under conditions in which subjects could not interact, or could interact only minimally, choices for cooperative and noncooperative point-earning options were directly related to the number of points associated with the options. However, when subjects were allowed 6.5 hr of social interaction per day, between successive sessions, only the cooperative option was chosen, regardless of point conditions. Marijuana altered activity performance, but had no effect on choice patterns, or on session earnings, under any condition.
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- BRADY, J. V., BIGELOW, G., EMURIAN, H., & WILLIAMS, D. M. (1974). Design of a programmed environment for the experimental analysis of social behavior. In D. H. Carson (Ed.), Man-environment interactions: Evaluations and applications. 7: Social ecology (pp. 187–208). Milwaukee, WL: Environmental Design Research Associates Inc.Google Scholar
- CHEREK, D. R., & STEINBERG, J. L. (1987). Effects of drugs on human aggressive behavior. In G. D. Burrows & J. S. Werry (Eds.), Advances in human psychopharmacology 4 (pp. 239–290). Greenwich, CN: Jai Press.Google Scholar
- FOLTIN, R. W., FISCHMAN, M. W., BRADY, J. V., BERNSTEIN, D. J., CAPRIOTTI, R. M., NELLIS, M. J., & KELLY, T. H. (1990). Motivational effects of smoked marijuana: Behavioral contingencies and low-probability activities. Journal of the Experimental Analysis of Behavior, 53, 5–19.CrossRefPubMedPubMedCentralGoogle Scholar
- GRINSPOON, L. (1971). Marijuana reconsidered. Cambridge, MA: Harvard University Press.Google Scholar
- HAKE, D. F., & OLVERA, D. (1978). Cooperation, competition, and related social phenomena. In A. C. Catania & T. A. Brigham (Eds.), Handbook of applied behavior analysis: Social and instructional processes (pp. 208–245). New York: Irvington Publishers, Inc.Google Scholar
- MARWELL, G., & SCHMITT, D. R. (1975). Cooperation: An experimental analysis. New York: Academic Press.Google Scholar
- MILES, C. G., CONGRAVE, G. R. S., GIBBINS, R. J., MARSHMAN, J., DEVENYI, P., & HICKS, R. C. (1974). An experimental study of the effects of daily cannabis smoking on behaviour patterns. Acta Pharmacologia Toxicologia, 1, 1–44.Google Scholar
- PREMACK, D. (1965). Reinforcement theory. In D. Levine (Ed.), Nebraska Symposium on Motivation 13 (pp. 123–180). Lincoln: University of Nebraska Press.Google Scholar
- SMITH, D. E. (1968). Acute and chronic toxicity of marijuana. Journal of Psychoactive Drugs, 2, 37–47Google Scholar
- UNITED STATES COMMISSION ON MARIJUANA and DRUG ABUSE. (1973). Drug use in America: Problems in perspective (Gpo Bookstore Stock Number 5266-00003). Washington, DC: U.S. Government Printing Office.Google Scholar