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  • Title: STIMULUS GENERALIZATION OF THE EFFECTS OF PUNISHMENT.
    Author: HONIG WK, SLIVKA RM.
    Journal: J Exp Anal Behav; 1964 Jan; 7(1):21-5. PubMed ID: 14120134.
    Abstract:
    Three pigeons were trained to respond to seven spectral stimulus values ranging from 490 to 610 mmu and displayed in random order on a response key. After response rates had equalized to these values, a brief electric shock was administered when the subject (S) responded to the central value (550 mmu) while positive reinforcement for all values was maintained. Initially, there was broad generalization of the resulting depression in response rate, but the gradients grew steeper in the course of testing. When punishment was discontinued, the rates to all values recovered, and equal responding to all stimuli was reattained by two of the Ss. Stimulus control over the effects of punishment was clearly demonstrated in the form of a generalization gradient; this probably resulted from the combined effects of generalization of the depression associated with punishment and discrimination between the punished value and neutral stimuli.
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