Browsing by Author "Pierce, W. D."
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Item Determinants of choice for pigeons and humans on concurrent-chains schedules of reinforcement(1989) Belke, T. W.; Pierce, W. D.; Powell, Russell A.Demonstrated that the determinants of choice and preference are different for pigeons and humans exposed to the same concurrent schedules of reinforcement. Four male pigeons and 4 male undergraduates replicated E. Fantino's (see record 1970-03386-001 ) experiment that manipulated initial-link duration to test the divergent predictions of the delay-reproduction and reinforcement-density equations. Condition 1 exposed Ss to VI 90-sec and 30-sec initial links. Conditions 2 and 3 arranged equal initial-link schedules of 40 sec or 120 sec. Pigeons strongly preferred the alternative with the shorter terminal-link time to reinforcement, while delay-reduction equations did not predict the performance of humans in the unequal initial-link.