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Psychopharmacology

, Volume 217, Issue 3, pp 433–442 | Cite as

Learning not to be impulsive: disruption by experience of alcohol withdrawal

  • Sophie E. Walker
  • Yolanda Peña-Oliver
  • David N. StephensEmail author
Original Investigation

Abstract

Rationale

There is extensive evidence that alcoholism and impulsivity are related, but the direction of causality is unclear.

Objectives

The aim of the present investigation was to study the effects of chronic ethanol treatment and withdrawal in measures of attention and impulse control in the five-choice serial reaction time task (5CSRTT) in mice.

Materials and methods

C57BL/6J mice were trained in the 5CSRTT and then tested in a variable inter-trial interval (vITI) session, which promotes the emergence of premature responses, a measure of poor inhibitory control. Following chronic ethanol treatment, mice were tested in additional vITI sessions—in experiment 1, at 1, 7 and 14 days post-withdrawal, and in experiment 2, at 14, 28, 42 and 56 days post-withdrawal.

Results

Control animals showed a reduction in premature responding with experience of the vITI schedule. Compared to controls, previous ethanol treatment did not affect attention or impulsivity on first experience of the vITI procedure. Ethanol-treated animals showed sustained increased premature responding over sessions. This effect of ethanol treatment was not apparent in experiment 2, in which first exposure to the vITI schedule was delayed for 2 weeks following ethanol treatment.

Conclusions

Chronic ethanol treatment impaired the ability to learn to modify behaviour in order to gain access to reinforcement more frequently. This effect was related to the time since withdrawal.

Keywords

Attention Impulsivity Impulsive action Learning 5CSRTT Ethanol Ethanol withdrawal Mouse 

Notes

Acknowledgements

This work was carried out with the support of UK Medical Research Council Programme Grant G0400568. YPO was funded by the IMAGEN consortium that receives research funding from the European Community’s Sixth Framework Programme (LSHM-CT-2007-037286). This paper reflects only the authors’ views and the Community is not liable for any use that may be made of the information contained therein. We thank T. Ripley for providing support with programming and data analysis.

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Sophie E. Walker
    • 1
  • Yolanda Peña-Oliver
    • 1
  • David N. Stephens
    • 1
    Email author
  1. 1.School of PsychologyUniversity of SussexBrightonUK

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