Date of Award

8-1981

Degree Name

Master of Arts

Department

Psychology

First Advisor

Dr. Alan Poling

Second Advisor

Dr. R. Wayne Fuqua

Third Advisor

Dr. Arthur Snapper

Access Setting

Masters Thesis-Open Access

Abstract

Previous investigations have shown that rate, latency, and percentage of trials with at least one response are somewhat insensitive measures of the strength of autoshaped responding. In two experiments, nine pigeons were exposed to an autoshaping procedure in which the successive presentation of three stimuli were followed by food on either 100%, 50%, or 0% of the trials. Choice testing involved the simultaneous presentation of the three stimuli. In Experiment I, all pigeons consistently directed their initial choice responses and the majority of subsequent responses to the stimulus always followed by food. In Experiment II, rate, latency, and percentage of trials with at least one response did not change appreciable as a function of duration of feeder presentations. However, choice responding was lawfully affected by duration of feeder presentations. These data suggest that choice is perhaps a more sensitive measure of the strength of autoshaped responding.

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