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Related Experiment Videos

Caffeine deprivation affects vigilance performance and mood

J D Lane1, B G Phillips-Bute

  • 1Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC 27710, USA. jdlane@acpub.duke.edu

Physiology & Behavior
|November 12, 1998
PubMed
Summary

Even short caffeine deprivation negatively impacts vigilance and mood in coffee drinkers. Abstaining from caffeine, even for a morning, causes withdrawal symptoms like fatigue and headaches.

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Area of Science:

  • Neuroscience
  • Psychology
  • Human Physiology

Background:

  • Habitual caffeine consumption is widespread.
  • Caffeine withdrawal symptoms are commonly reported.
  • The impact of brief caffeine deprivation on cognitive function requires further investigation.

Purpose of the Study:

  • To investigate the effects of short-term caffeine deprivation on vigilance performance.
  • To assess changes in mood and caffeine withdrawal symptoms.
  • To understand the role of withdrawal symptoms in maintaining caffeine use.

Main Methods:

  • Thirty habitual coffee drinkers participated in a within-subjects design.
  • Participants completed vigilance tasks and questionnaires under two conditions: caffeine consumption and caffeine abstinence.

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  • Vigilance was measured using a computerized visual monitoring task.

    • Main Results:

    • Caffeine deprivation led to impaired vigilance, including fewer targets detected and longer response times.
    • Subjective reports indicated decreased vigor and increased fatigue.
    • Withdrawal symptoms such as sleepiness and headache were reported.

    Conclusions:

    • Brief caffeine deprivation, similar to skipping morning coffee, impairs sustained attention.
    • Noticeable withdrawal symptoms can occur even after short abstinence periods.
    • These withdrawal symptoms may contribute to the maintenance of habitual caffeine consumption.