Design and Setting We conducted a cross-sectional analysis of AD data collected at inpatient and outpatient alcohol treatment settings compared to age-and-gender matched control data, with the former collected at two time-points in early abstinence. Repeated-measures analysis also assessed change in RT score between baseline and follow-up, between inpatient and outpatient AD participants. Participants AD participants had an ICD-10 diagnosis of alcohol dependence, and were currently undergoing detoxification from alcohol. All participants were aged 18+, and fluent in English. Exclusion criteria for both groups were pregnancy or a condition affecting sensation in dominant hand. 66 participants with AD were recruited, and 35 control participants were age-and-gender matched to these (total N = 101). Of the AD participants, 45 remained at follow-up. Statistical Analysis To examine predictors of vibrotactile reaction time, we conducted multivariate multiple regressions at baseline and follow-up, with age, gender, mood state, and group (control vs AD) as predictors. We also conducted a mixed 2x2 MANCOVA on AD data available at both timepoints (n = 45) with treatment setting (outpatient vs. inpatient) as the between-groups factor, time as the within-groups factor, gender as a covariate, and RT measures as dependent variables.