Does auditory attentional bias determine craving for methamphetamine? A pilot study using a word recognition dichotic...

Area of Science:

• Neuroscience
• Psychology
• Addiction Medicine

Background:

• Assessing drug users' status is challenging due to unreliable self-reporting and deceitful answers.
• Intense drug craving is a primary driver of relapse and treatment failure in individuals with substance use disorders.
• Existing methods for studying attentional bias primarily focus on visual stimuli, neglecting auditory cues that can trigger drug craving.

Purpose of the Study:

• To evaluate a modified word recognition dichotic listening task for its ability to distinguish between methamphetamine users and non-users.
• To assess the reliability and validity of this novel auditory paradigm for measuring attentional bias related to drug craving.
• To explore the relationship between task performance, self-reported craving, and treatment adherence in methamphetamine users.

Main Methods:

• A cohort of 30 adult males (15 methamphetamine users, 15 non-users) participated in the study.
• Participants completed a dichotic listening task presenting neutral and methamphetamine-related auditory stimuli simultaneously to each ear.
• Performance was assessed by word recognition accuracy, alongside self-reported methamphetamine craving and one-month therapy adherence for users.

Main Results:

• Methamphetamine users exhibited significantly lower word recognition performance compared to non-users (t = 4.30, p < .001).
• Higher task performance correlated with continued treatment adherence one month later (t = -2.56, p < .05).
• The task demonstrated excellent reliability (ICC = 0.90) and a significant negative correlation with self-reported craving (r = -.47, p < .001).

Conclusions:

• The modified dichotic listening task effectively discriminates individuals with methamphetamine craving from those without.
• This auditory paradigm shows high reliability and validity, offering a promising tool for research and clinical practice.
• The method aids in obtaining more objective data on drug craving, potentially improving treatment outcomes and preventing relapse.