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Related Experiment Videos

Differences in alcohol expectancy between aggressive and nonaggressive social drinkers

J M Bjork1, D M Dougherty

  • 1Department of Psychiatry and Behavioral Sciences, University of Texas-Houston Medical School, 77030, USA.

Alcoholism, Clinical and Experimental Research
|January 12, 1999
PubMed
Summary

Aggressive drinkers overestimate alcohol

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Area of Science:

  • Psychology
  • Neuroscience

Background:

  • Alcohol consumption is linked to aggression.
  • Psychological expectancies influence alcohol's effects.

Purpose of the Study:

  • To investigate if aggressive drinkers have higher intoxication expectancies.
  • To explore the role of expectancy in alcohol-induced aggression.

Main Methods:

  • Selected aggressive and nonaggressive groups based on aggression rates.
  • Administered placebo and alcohol beverages in a laboratory setting.
  • Measured aggression using a money subtraction task.

Main Results:

  • Aggressive subjects overestimated intoxication from placebo drinks.
  • Nonaggressive subjects accurately distinguished alcohol from placebo.

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  • Aggressive drinkers expected less intoxication from actual alcohol doses.

    • Conclusions:

    • Aggressive drinkers' expectancies are distorted, even with placebo alcohol.
    • Expectancy plays a role in the relationship between aggression and alcohol.