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Arantes, Joana; Berg, Mark E.; Le, Dien; Grace, Randolph C. – Journal of the Experimental Analysis of Behavior, 2012
In Experiment 1, 4 pigeons were trained on a multiple chain schedule in which the initial link was a variable-interval (VI) 20-s schedule signalled by a red or green center key, and terminal links required four responses made to the left (L) and/or right (R) keys. In the REPEAT component, signalled by red keylights, only LRLR terminal-link…
Descriptors: Resistance to Change, Preferences, Animals, Reinforcement