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Related Experiment Videos

Alcohol effects on intentional behavior: dissociating controlled and automatic influences.

M T Fillmore1, M Vogel-Sprott, D Gavrilescu

  • 1Department of Psychology, University of Kentucky, Lexington, 40506-0044, USA.

Experimental and Clinical Psychopharmacology
|December 28, 1999
PubMed
Summary

Alcohol impairs conscious control over intentional behavior while leaving unconscious automatic processes unaffected. This study clarifies how alcohol impacts cognitive control and intentional actions in social drinkers.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Behavioral Science

Background:

  • Intentional behavior is influenced by both conscious controlled and unconscious automatic processes.
  • Understanding how substances like alcohol affect these distinct cognitive processes is crucial for public health and safety.

Purpose of the Study:

  • To investigate the specific effects of alcohol on conscious controlled versus unconscious automatic processes influencing intentional behavior.
  • To differentiate the impact of alcohol on cognitive control mechanisms.

Main Methods:

  • Utilized a process dissociation procedure in two identical experiments.
  • Employed a word stem completion test to measure automatic and controlled cognitive influences.
  • Administered alcohol (0.56 g/kg), an alcohol placebo, or soda to 24 male social drinkers.

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Main Results:

  • Alcohol consumption significantly reduced conscious controlled processes.
  • Unconscious automatic processes remained unaffected by alcohol.
  • Findings were consistent across both experimental replications.

Conclusions:

  • Alcohol selectively impairs the cognitive control of intentional behavior by diminishing conscious processes.
  • The study highlights the differential impact of alcohol on distinct cognitive systems.
  • Further research is needed to explore mediating factors like personal and environmental influences on alcohol's cognitive effects.