Deficits in proactive avoidance and neural responses to drinking motives in problem drinkers

Area of Science:

• Neuroscience
• Psychology
• Addiction Research

Background:

• Harmful alcohol use is often driven by motives to avoid physical pain and negative emotions.
• Proactive avoidance, a strategy to mitigate problem drinking, appears impaired in individuals with alcohol use disorders.
• Neural mechanisms underlying proactive avoidance deficits and their connection to drinking motives remain poorly understood.

Approach:

• The study utilized neuroimaging (fMRI) in a go/nogo task to assess proactive avoidance in 41 problem drinkers and 41 social drinkers.
• Researchers examined brain responses during proactive avoidance of painful outcomes.
• Neural correlates linking drinking motives (physical pain, negative emotions) to avoidance deficits and alcohol use severity were identified.

Key Points:

• Problem drinkers exhibited deficits in proactive avoidance learning and accuracy, correlating with higher alcohol consumption.
• Negative emotion drinking motive was associated with reduced right insula activation during avoidance in problem drinkers.
• Physical pain drinking motive was linked to decreased right putamen response, with both regions showing altered connectivity in relation to drinking severity.

Conclusions:

• This research provides experimental evidence of proactive avoidance deficits in problem drinkers.
• Specific neural regions (insula, putamen) and their connectivity are implicated in the relationship between drinking motives, avoidance impairments, and alcohol misuse.
• Findings highlight potential targets for interventions aimed at improving avoidance strategies in alcohol use disorders.