Impulsivity as a Multifaceted Construct Related to Excessive Drinking Among UK Students

Area of Science:

• Psychology
• Neuroscience
• Public Health

Background:

• Excessive alcohol consumption is prevalent among university students.
• Impulsivity is a known risk factor for heavy alcohol use.
• Previous research has not fully explored the multifaceted nature of impulsivity in relation to student drinking patterns.

Purpose of the Study:

• To investigate the relationship between various facets of self-report and behavioral impulsivity and excessive alcohol consumption in university students.
• To identify specific impulsivity measures that predict heavy drinking in a student population.

Main Methods:

• A comprehensive battery of impulsivity measures, including the Barratt Impulsiveness Scale (self-report) and behavioral tasks (Stop Signal Task, Information Sampling Task, Monetary Choice Questionnaire), were administered.
• Participants exceeding UK drinking guidelines were compared to those who did not on impulsivity measures.
• Hierarchical linear regression was used to assess the association between impulsivity indices and weekly alcohol consumption.

Main Results:

• Students exceeding UK drinking guidelines reported higher levels of self-reported impulsivity.
• Performance deficits were observed in the Stop Signal Task among excessive drinkers.
• Nonplanning impulsivity, measured by the Barratt Impulsiveness Scale, significantly predicted monthly alcohol consumption.

Conclusions:

• Excessive student drinkers exhibit heightened impulsivity in specific self-report and behavioral domains.
• While not exhibiting the full spectrum of deficits seen in alcohol-dependent individuals, specific impulsivity-related deficits are evident in this younger, heavy-drinking population.
• These findings highlight the importance of considering multifaceted impulsivity in understanding and addressing excessive student drinking.