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  • Title: Some effects of response-independent reinforcement on auditory generalization gradients.
    Author: Huff RC, Sherman JE, Cohn M.
    Journal: J Exp Anal Behav; 1975 Jan; 23(1):81-6. PubMed ID: 1117248.
    Abstract:
    Two groups of six rats received discrimination training with two auditory stimuli differing in intensity. During one stimulus, the schedule was variable interval; during the other, it was either variable time or extinction. Both the variable time and extinction schedules resulted in differential rates of responding in the presence of the two stimuli. Extinction resulted in an earlier and more stable difference. Stimulus generalization gradients obtained along the noise-intensity dimension revealed peak shift with both procedures. In addition, a secondary peak to stimuli in between the two training stimuli occurred with the variable-time schedule.
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