Year: 2015
Type: article
Abstract: Pigeons were trained in a two-key, concurrent chains choice procedure with equal initial and terminal links. Across conditions, the durations of reinforcement in the terminal links were either equal (3-s vs 3-s) or unequal (3-s vs 6-s), and these durations were either uncued by hopper lights (both white) or cued (3-s: white; 6-s: colored). The pigeons’ choice responding leading to the longer duration of reinforcement was generally in the range of indifference with nondifferential hopper lights, but favored the longer duration with differential hopper lights. Taken together, the data suggest that differential hopper lights facilitated the discrimination of the longer reinforcement duration, and hence enhanced its control.
Author: Michael J. Harman
Institution: University of Wisconsin–Milwaukee
Language: English
Subfield: Developmental and Educational Psychology
Field: Psychology
Domain: Social Sciences
Open Access status: green
OpenAlex ID: W2265050423