A re-examination of responding on ratio and regulated-probability interval schedules
| Autor: | Omar D. Pérez, Michael R. F. Aitken, Amy L. Milton, Anthony Dickinson |
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| Přispěvatelé: | Milton, Amy [0000-0003-0175-9417], Apollo - University of Cambridge Repository |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Reinforcement schedules
Variable interval Interval schedule 05 social sciences 050105 experimental psychology Article Ratio schedule Interval (music) Goal-directed behavior Statistics Dual-system theories 0501 psychology and cognitive sciences 050102 behavioral science & comparative psychology Reinforcement psychological phenomena and processes Mathematics |
| Zdroj: | Pérez, O D, Aitken, M R F, Milton, A L & Dickinson, A 2018, ' A re-examination of responding on ratio and regulated-probability interval schedules ', LEARNING AND MOTIVATION, vol. 64, pp. 1-8 . https://doi.org/10.1016/j.lmot.2018.07.003 Learning and Motivation |
| DOI: | 10.1016/j.lmot.2018.07.003 |
| Popis: | The higher response rates observed on ratio than on matched interval reward schedules has been attributed to the differential reinforcement of longer inter-response times (IRTs) on the interval contingency. Some data, however, seem to contradict this hypothesis, showing that the difference is still observed when the role of IRT reinforcement is neutralized by using a regulated-probability interval schedule (RPI). Given the mixed evidence for these predictions, we re-examined this hypothesis by training three groups of rats to lever press under ratio, interval and RPI schedules across two phases while matching reward rates within triads. At the end of the first phase, the master ratio and RPI groups responded at similar rates. In the second phase, an interval group yoked to the same master ratio group of the first phase responded at a lower rate than the RPI group. Post-hoc analysis showed comparable reward rates for master and yoked schedules. The experienced response-outcome rate correlations were likewise similar, and approached zero as training progressed. We discuss these results in terms of dual-system theories of instrumental conditioning. |
| Databáze: | OpenAIRE |
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