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Working-memory training: Effects on delay discounting in male long evans rats.
- Source :
-
Journal of the Experimental Analysis of Behavior . Jan2015, Vol. 103 Issue 1, p50-61. 12p. - Publication Year :
- 2015
-
Abstract
- Delay discounting describes the devaluation of a reward as the delay to the receipt of the reward increases. Because steep delay discounting is robustly correlated with a number of behavioral problems (e.g., substance dependence, gambling) and some evidence suggests steep discounting precedes and predicts drug-taking in humans and rats, this study sought to experimentally reduce rats' delay discounting. Human stimulant-dependent participants given working-memory training reportedly decreased their rates of discounting relative to a sham-training group (Bickel, Yi, Landes, Hill, & Baxter, 2011). To evaluate the cross-species generality of this effect, 38 male Long-Evans rats, matched on pretraining delay-discounting rates, were randomly assigned to receive 140 sessions of working-memory training or sham training (which required no memory of the sample stimulus). Large between-group differences in working memory were observed after training; however, posttraining delay-discounting rates were undifferentiated across groups. Potential explanations for these findings are discussed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00225002
- Volume :
- 103
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of the Experimental Analysis of Behavior
- Publication Type :
- Academic Journal
- Accession number :
- 100372648
- Full Text :
- https://doi.org/10.1002/jeab.115