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Related Experiment Video

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Individual differences in behavioral flexibility predict future volitional ethanol consumption in mice.

Ellen M Rodberg1, Elena M Vazey1

  • 1Neuroscience and Behavior Program and Department of Biology, University of Massachusetts Amherst, 611 North Pleasant St., Amherst, MA 01003, United States.

Alcohol (Fayetteville, N.Y.)
|April 8, 2022
PubMed
Summary
This summary is machine-generated.

Mice with less behavioral flexibility, or the ability to adapt strategies, drank more alcohol. This suggests a conserved link between cognitive flexibility and alcohol consumption across species.

Keywords:
CognitionDrinkingIndividual differencesPredictiveRisk factorSet-shifting

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Area of Science:

  • Neuroscience
  • Behavioral Science
  • Addiction Research

Background:

  • Cognitive control is crucial for regulating alcohol intake and preventing relapse.
  • Behavioral inflexibility can hinder adaptive coping mechanisms like mindfulness.
  • Understanding individual differences in cognitive flexibility may predict alcohol consumption patterns.

Purpose of the Study:

  • To investigate the relationship between individual variability in behavioral flexibility and subsequent alcohol intake in a mouse model.
  • To determine if performance on the attentional set-shifting task (ASST) can predict alcohol consumption.
  • To explore the conserved nature of the link between behavioral flexibility and alcohol use across species.

Main Methods:

  • Adult male and female C57BL/6J mice underwent an attentional set-shifting task (ASST) using a bowl-digging paradigm before alcohol exposure.
  • Individual behavioral flexibility was quantified using metrics from the ASST, including stages completed, trials to completion, and errors.
  • Mice were subsequently trained to consume ethanol (15%) for 3-4 weeks to stabilize intake.

Main Results:

  • Significant individual variability in behavioral flexibility was observed within the mouse cohort.
  • An inverse relationship was identified: mice with lower behavioral flexibility exhibited a propensity for higher alcohol consumption.
  • This finding aligns with previous observations in non-human primates and rats, indicating conserved patterns.

Conclusions:

  • Behavioral flexibility is a robust trait associated with alcohol consumption, conserved across species.
  • Individual differences in behavioral flexibility, assessed via ASST, can predict alcohol intake in mice.
  • This mouse model provides a valuable platform for studying the neural mechanisms underlying the relationship between cognitive flexibility and alcohol use disorders.