The aim of this research was to compare cognitive functions of persons treated for alcohol addiction with a control sample and determine whether differences exist between these two groups. The study included 19 patients, 13 males and 6 females. The control sample had the same number of individuals matched for age and sex. Both groups of participants completed the Wechsler Adult Intelligence Scale, 4th edition (WAIS-IV-HR). The WAIS-IV-HR consists of 15 subtests grouped into 4 indexes and is a measure of cognitive abilities of adolescents and adults. The results of this study revealed significant differences in congnitive functions of treated alcoholics in comparison to the paired sample. Persons treated for alcohol addiction achieved significantly lower results on all WAIS-IV-HR indexes (Perceptual Reasoning, Verbal Comprehension, Working Memory and Processing Speed) in relation to the control sample.

cognitive functions, alcoholism, intelligence, WAIS-IV-HR