Neuropsychological functioning of individuals with coca paste use disorder

Abstract

Background

Cocaine use has increased worldwide in recent years. However, the specific effects of smoking coca paste and its consequences on the cognitive functioning of individuals are unknown. The purposes of this study were to compare the neuropsychological functioning of a group of 163 individuals with coca-paste use disorder (CPUD) to that of a group of 162 healthy controls (HC) and to examine the relationship between cognitive performance and sociodemographic characteristics of these groups.

Methods

Participants were administered a comprehensive neuropsychological battery that included tests of learning and memory, language and executive functions.

Results

Although there were no significant differences in age and educational level between the groups, individuals with CPUD had significantly lower cognitive performance on the tests of learning and memory, language and executive functions compared with HC. An interaction effect was observed between group (CPUD versus HC) and educational level in the cognitive domains of learning and memory and language, such that more years of education was associated with better performance in these domains only in the HC.

Conclusions

Deficits in learning and memory, language and executive functions are common in individuals with CPUD. Cognitive rehabilitation programs have been shown to improve these functions in individuals with CPUD. Therefore, this study reinforces the necessity of including such programs as part of the holistic intervention plan for these individuals.

Keywords:

• Addiction
• neuropsychological assessment
• learning
• memory
• language
• executive function

Author contributions

EVM, SSR, DR, FGS and JCAL designed the study. MRAB and JAPP participated in the assessment protocols and administration. DR and JCAL conducted statistical analyses. EVM, SSR, DR, FGS and JCAL contributed to the interpretation of the data. EVM, SSR, DR and JCAL developed a first draft. All the authors contributed to improve the draft and approved the final version.

Disclosure statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this manuscript.