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ERIC Number: EJ896752
Record Type: Journal
Publication Date: 2010-Sep
Pages: 11
Abstractor: As Provided
Reference Count: 32
ISSN: ISSN-0022-5002
The Effects of a Local Negative Feedback Function between Choice and Relative Reinforcer Rate
Davison, Michael; Elliffe, Douglas; Marr, M. Jackson
Journal of the Experimental Analysis of Behavior, v94 n2 p197-207 Sep 2010
Four pigeons were trained on two-key concurrent variable-interval schedules with no changeover delay. In Phase 1, relative reinforcers on the two alternatives were varied over five conditions from 0.1 to 0.9. In Phases 2 and 3, we instituted a molar feedback function between relative choice in an interreinforcer interval and the probability of reinforcers on the two keys ending the next interreinforcer interval. The feedback function was linear, and was negatively sloped so that more extreme choice in an interreinforcer interval made it more likely that a reinforcer would be available on the other key at the end of the next interval. The slope of the feedback function was -1 in Phase 2 and -3 in Phase 3. We varied relative reinforcers in each of these phases by changing the intercept of the feedback function. Little effect of the feedback functions was discernible at the local (interreinforcer interval) level, but choice measured at an extended level across sessions was strongly and significantly decreased by increasing the negative slope of the feedback function. (Contains 1 table and 6 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A