1990 – 1994

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Heyman, G.M. (1994, Nov 18). Misunderstood messengers. Boston Globe.

Heyman, G.M. & Monaghan, M.M. (1994). Reinforcer magnitude (sucrose concentration) and the matching law theory of response strength. Journal of the Experimental Analysis of Behavior, 61, 505-516.

Petry, N.M., & Heyman, G.M. (1994). Effects of qualitatively different reinforcers on the parameters of the response strength equation. Journal of the Experimental Analysis of Behavior, 61, 97-106.

Belke, T., & Heyman, G.M. (1994). Increasing and signaling background reinforcement.Journal of the Experimental Analysis of Behavior, 61, 65-81.

Belke, T., & Heyman, G.M. (1994). A matching law analysis of the reinforcing efficacy of wheel running in rats. Animal Learning & Behavior, 22, 267-274.

Heyman, G.M. (1993). Ethanol regulated preference in rats. Psychopharmacology, 112, 259-269.

Heyman, G.M. (1993). Response requirement increases fail to decrease preference for alcohol beverage in rats. [Abstract]. Alcoholism: Clinical and Experimental Research, 17, 480.

Heyman, G.M. & Oldfather, C. (1992). Elasticity of preference for ethanol in rats: An analysis of the reinforcing properties of ethanol. Psychological Science, 3, 122-130

Heyman, G.M. (1992). Methylphenidate increases reinforcement efficacy: Matching law and rate dependency analyses. Psychopharmacology, 109, 145-152.

Heyman, G.M. (1990). Contributions of the matching law to the analysis of the behavioral effects of drugs.  P. Dews, & J. E. Barrett (Eds.), Advances in Behavioral Pharmacology, Volume 7. Hillsdale, N. J.: Lawrence Erlbaum Press, 39-77.

P. Dews, & J. E. Barrett (Eds.), Advances in Behavioral Pharmacology, Volume 7. Hillsdale, N. J.: Lawrence Erlbaum Press, 39-77.