Citation: Nm. Petry et Gm. Heyman, RAT TOYS, REINFORCERS, AND RESPONSE STRENGTH - AN EXAMINATION OF THE R-E PARAMETER IN HENNSTEINS EQUATION, Behavioural processes, 39(1), 1997, pp. 39-52
Citation: Nm. Petry et Gm. Heyman, BIDIRECTIONAL MODULATION OF SWEET AND BITTER TASTE BY CHLORDIAZEPOXIDE AND RO-15-4513 - LACK OF EFFECT WITH GABA DRUGS, Physiology & behavior, 61(1), 1997, pp. 119-126
Citation: Gm. Heyman, WHICH BEHAVIORAL CONSEQUENCES MATTER - THE IMPORTANCE OF FRAME OF REFERENCE IN EXPLAINING ADDICTION, Behavioral and brain sciences, 19(4), 1996, pp. 599
Citation: Gm. Heyman et L. Tanz, HOW TO TEACH A PIGEON TO MAXIMIZE OVERALL REINFORCEMENT RATE, Journal of the experimental analysis of behavior, 64(3), 1995, pp. 277-297
Citation: Nm. Petry et Gm. Heyman, BEHAVIORAL ECONOMICS OF CONCURRENT ETHANOL-SUCROSE AND SUCROSE REINFORCEMENT IN THE RAT - EFFECTS OF ALTERING VARIABLE-RATIO REQUIREMENTS, Journal of the experimental analysis of behavior, 64(3), 1995, pp. 331-359
Citation: Tw. Belke et Gm. Heyman, A MATCHING LAW ANALYSIS OF THE REINFORCING EFFICACY OF WHEEL RUNNING IN RATS, Animal learning & behavior, 22(3), 1994, pp. 267-274
Citation: Gm. Heyman et Mm. Monaghan, REINFORCER MAGNITUDE (SUCROSE CONCENTRATION) AND THE MATCHING LAW THEORY OF RESPONSE STRENGTH, Journal of the experimental analysis of behavior, 61(3), 1994, pp. 505-516
Citation: Tw. Belke et Gm. Heyman, INCREASING AND SIGNALING BACKGROUND REINFORCEMENT - EFFECT ON THE FOREGROUND RESPONSE-REINFORCER RELATION, Journal of the experimental analysis of behavior, 61(1), 1994, pp. 65-81
Citation: Nm. Petry et Gm. Heyman, EFFECTS OF QUALITATIVELY DIFFERENT REINFORCERS ON THE PARAMETERS OF THE RESPONSE-STRENGTH EQUATION, Journal of the experimental analysis of behavior, 61(1), 1994, pp. 97-106