Remember the Future: Working Memory Training Decreases Delay Discounting Among Stimulant Addicts

Overview

Journal Biol Psychiatry

Publisher Elsevier

Specialty Psychiatry

Date 2010 Oct 23

PMID 20965498

Citations 317

Authors

Warren K Bickel

Richard Yi

Reid D Landes

Paul F Hill

Carole Baxter

Affiliations

Soon will be listed here.

Abstract

Background: Excessive discounting of future rewards has been observed in a variety of disorders and has been linked both to valuation of the past and to memory of past events.

Methods: To explore the functionality of discounting and memory, we examined whether training of working memory would result in less discounting of future rewards. In this study, 27 adults in treatment for stimulant use were randomly assigned to receive either working memory training or control training according to a yoked experimental design. Measures of delay discounting and several other cognitive behaviors were assessed pre- and posttraining.

Results: Rates of discounting of delayed rewards were significantly reduced among those who received memory training but were unchanged among those who received control training; other cognitive assessments were not affected by memory training. Discount rates were positively correlated with memory training performance measures.

Conclusions: To our knowledge, this is the first study demonstrating that neurocognitive training on working memory decreases delay discounting. These results offer further evidence of a functional relationship between delay discounting and working memory.

Citing Articles

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