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The effect of alcohol hangover on choice response time.

James A Grange1, Richard Stephens2, Kate Jones3

  • 1Keele University, Keele, UK j.a.grange@keele.ac.uk.

Journal of Psychopharmacology (Oxford, England)
|May 12, 2016
PubMed
Summary

Alcohol hangover impairs cognitive processing, particularly slowing response times (RT) and increasing variability. Novel analysis reveals hangover affects decision-making efficiency and caution.

Keywords:
Alcohol hangoverchoice response timecognitive effectsdiffusion modelex-Gaussian analysis

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Area of Science:

  • Cognitive Neuroscience
  • Psychopharmacology

Background:

  • Alcohol hangover effects on cognitive processing are understudied.
  • Previous research on hangover and response time (RT) yielded inconsistent results due to limited analytical methods.

Purpose of the Study:

  • To investigate the impact of alcohol hangover on choice RT using advanced analytical techniques.
  • To move beyond mean RT analysis and explore the entire RT distribution.

Main Methods:

  • Employed ex-Gaussian models to analyze the full RT distribution in hangover conditions (n=31).
  • Utilized the diffusion model to estimate parameters reflecting underlying psychological processes of choice RT.

Main Results:

  • Hangover significantly impaired performance at the slower end of the RT distribution.
  • Increased RT variance was observed during hangover.
  • Hangover reduced information processing efficiency and increased response caution, impacting core decision-making components.

Conclusions:

  • Advanced RT distribution analysis reveals specific cognitive deficits associated with alcohol hangover.
  • Hangover impacts fundamental decision-making processes, not just overall speed.
  • Novel methods offer deeper insights into hangover's cognitive consequences.