Title

Effects of Initial-Link Duration on Preference and Resistance to Change in Concurrent-Chains Schedules

Document Type

Article

Journal/Book Title/Conference

Behavioural Processes

Volume

81

Issue

2

Publisher

Elsevier

Publication Date

2009

First Page

223

Last Page

226

DOI

10.1016/j.beproc.2009.02.011

Abstract

Previous studies with concurrent-chains procedures have shown that preference for a terminal-link signaling a higher reinforcement rate decreases as initial-link durations increase. Using a concurrent-chains procedure, the present experiment examined the effects of manipulating initial-link duration on preference and resistance to disruption with rats nose poking for different rates of food reinforcement in the terminal links. Consistent with previous findings, preference for a terminal link with a higher reinforcement rate decreased with longer initial links. Conversely, relative resistance to disruption in the terminal link with a higher reinforcement rate increased with longer initial links. These findings are counter to the prediction of behavioral momentum theory that preference and resistance to change should be positively related.

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