Impulsive choice predicts poor working memory in male rats.

A number of maladaptive behaviors and poor health outcomes (e.g., substance abuse, obesity) correlate with impulsive choice, which describes the tendency to prefer smaller, immediate rewards in lieu of larger, delayed rewards. Working memory deficits are often reported in those diagnosed with the sa...

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Main Authors: C Renee Renda, Jeffrey S Stein, Gregory J Madden
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3986066?pdf=render
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author C Renee Renda
Jeffrey S Stein
Gregory J Madden
author_facet C Renee Renda
Jeffrey S Stein
Gregory J Madden
author_sort C Renee Renda
collection DOAJ
description A number of maladaptive behaviors and poor health outcomes (e.g., substance abuse, obesity) correlate with impulsive choice, which describes the tendency to prefer smaller, immediate rewards in lieu of larger, delayed rewards. Working memory deficits are often reported in those diagnosed with the same maladaptive behaviors. Human studies suggest that impulsive choice is associated with working memory ability but, to date, only one study has explored the association between working memory and impulsive choice in rats and no relation was reported. The current study reevaluated the association between working memory and impulsive choice in 19 male Long-Evans rats. Psychophysical adjusting procedures were used to quantify working memory (titrating-delay match-to-position procedure) and impulsive choice (adjusting delay procedure). Rats were partitioned into low- and high-impulsive groups based on performance in the impulsive choice task. Low-impulsive rats performed significantly better in the working memory assessment. Across all rats, impulsive choice was negatively correlated with working memory performance. These findings support the hypothesis that prefrontal cortex function, specifically, working memory, is related to impulsive choice. Future research might profitably examine the experimental variables designed to influence working memory to evaluate the effects of these variables on impulsive choice and maladaptive behaviors with which it is correlated.
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spelling doaj.art-9c6b3a5018d04bf296c5015348d3a8b12022-12-21T21:52:16ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0194e9326310.1371/journal.pone.0093263Impulsive choice predicts poor working memory in male rats.C Renee RendaJeffrey S SteinGregory J MaddenA number of maladaptive behaviors and poor health outcomes (e.g., substance abuse, obesity) correlate with impulsive choice, which describes the tendency to prefer smaller, immediate rewards in lieu of larger, delayed rewards. Working memory deficits are often reported in those diagnosed with the same maladaptive behaviors. Human studies suggest that impulsive choice is associated with working memory ability but, to date, only one study has explored the association between working memory and impulsive choice in rats and no relation was reported. The current study reevaluated the association between working memory and impulsive choice in 19 male Long-Evans rats. Psychophysical adjusting procedures were used to quantify working memory (titrating-delay match-to-position procedure) and impulsive choice (adjusting delay procedure). Rats were partitioned into low- and high-impulsive groups based on performance in the impulsive choice task. Low-impulsive rats performed significantly better in the working memory assessment. Across all rats, impulsive choice was negatively correlated with working memory performance. These findings support the hypothesis that prefrontal cortex function, specifically, working memory, is related to impulsive choice. Future research might profitably examine the experimental variables designed to influence working memory to evaluate the effects of these variables on impulsive choice and maladaptive behaviors with which it is correlated.http://europepmc.org/articles/PMC3986066?pdf=render
spellingShingle C Renee Renda
Jeffrey S Stein
Gregory J Madden
Impulsive choice predicts poor working memory in male rats.
PLoS ONE
title Impulsive choice predicts poor working memory in male rats.
title_full Impulsive choice predicts poor working memory in male rats.
title_fullStr Impulsive choice predicts poor working memory in male rats.
title_full_unstemmed Impulsive choice predicts poor working memory in male rats.
title_short Impulsive choice predicts poor working memory in male rats.
title_sort impulsive choice predicts poor working memory in male rats
url http://europepmc.org/articles/PMC3986066?pdf=render
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AT jeffreysstein impulsivechoicepredictspoorworkingmemoryinmalerats
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