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Related Experiment Video

Updated: Jan 22, 2026

A Real-world What-Where-When Memory Test
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Memory and attention during an alcohol hangover.

Lydia E Devenney1, Kieran B Coyle1, Joris C Verster2,3,4

  • 1School of Psychology, Life and Health Sciences, Ulster University, Londonderry, Northern Ireland, UK.

Human Psychopharmacology
|July 13, 2019
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Summary

Alcohol hangover impairs selective attention and increases drowsiness. Cognitive functions like memory were not significantly affected in this naturalistic study of real-life alcohol consumption.

Keywords:
alcoholattentioncognitive functioninghangovermemorymood

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Area of Science:

  • Neuroscience
  • Psychology
  • Cognitive Science

Background:

  • Alcohol consumption is prevalent globally.
  • Understanding the cognitive and mood effects of alcohol hangover is crucial for public health and safety.
  • Previous research often relies on laboratory settings, limiting real-world applicability.

Purpose of the Study:

  • To investigate the impact of alcohol hangover on attention, memory, and mood in a naturalistic setting.
  • To assess cognitive performance and subjective feelings after typical alcohol consumption levels.

Main Methods:

  • A naturalistic study involving 74 participants (mean age 24.5 years).
  • Comparison between a hangover group (mean 13.8 drinks) and an alcohol-free control group.
  • Utilized cognitive tests including Stroop, Eriksen's Flanker, divided attention, and memory recall tasks.

Main Results:

  • The hangover group exhibited significantly slower reaction times.
  • Selective attention, assessed via Stroop and Eriksen's Flanker tests, was significantly impaired.
  • Hangover participants reported increased drowsiness and clumsiness, but error rates and other cognitive functions showed no significant differences.

Conclusions:

  • Alcohol hangover significantly impairs selective attention and affects mood states like drowsiness.
  • While selective attention is demonstrably affected, other cognitive domains such as memory may be less impacted in a naturalistic hangover state.
  • Findings highlight the real-world consequences of alcohol consumption on cognitive function and subjective well-being.