Background: Using more than one psychotropic substance is accompanied by increased risks for psychiatric and physical disorders. Accordingly, deficits in basal cognitive functions have been consistently associated with polysubstance use (PSU), whereas little is known about potential impairments in more complex socio-cognitive skills, which are relevant for daily-life functioning. Therefore, we investigated the effects of toxicological validated stimulant PSU on social cognition under consideration of potential cumulative effects.
Methods: We compared socio-cognitive performances of 47 individuals with stimulant PSU with 59 matched stimulant-naïve controls using the Multifaceted Empathy Test (MET) and the Movie for the Assessment of Social Cognition (MASC). Additionally, social network size was assessed by the Social Network Questionnaire (SNQ). Hair and urine testing was employed to categorize three PSU subgroups (3, 4, and ≥5 substances used) and to ensure drug abstinence in controls.
Results: Individuals with stimulant PSU showed lower emotional empathy (MET) and a smaller social network (SNQ) compared to controls (both with linear trends for increasing number of used substances: p < .05). In contrast, cognitive empathy (MET and MASC) was largely unaffected by PSU. Additional linear regression analyses within PSU individuals revealed number of used substances as the best predictor for inferior performance in emotional empathy (p < .01), while severity of the use of single substances or substance-classes did not show a significant impact.
Conclusion: These findings demonstrate cumulative adverse effects of stimulant PSU on an important facet of socio-cognitive functioning. Therefore, emotional empathy deficits should be targeted in future interventions and rehabilitations for individuals with PSU.
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http://dx.doi.org/10.1016/j.drugalcdep.2018.06.001 | DOI Listing |
Exp Brain Res
November 2024
Division of Health and Applied Science Physiology Program, Faculty of Science, Prince of Songkla University, Hat Yai, Thailand.
Methamphetamine (METH) has well-documented long-term effects on the brain, including increased psychomotor activity and behavioral sensitization. However, its immediate effects on the brain's reward system following acute exposure, which may contribute to the development of addiction, are less understood. This study aimed to investigate the effects of acute METH on brain oscillations in the nucleus accumbens of C57BL/6 mice.
View Article and Find Full Text PDFAm J Addict
November 2024
Department of Epidemiology, College of Public Health & Health Professions and College of Medicine, University of Florida, Gainesville, Florida, USA.
Background And Objectives: Nonmedical use of prescription tranquilizers/sedatives (NMUPTS) is associated with a 15-times increased likelihood of polysubstance use (PSU). This is correlated with an increased risk for use disorders and death, therefore, to inform prevention efforts, we identified PSU profiles among adults reporting sleep-related NMUPTS.
Methods: National Survey on Drug Use and Health 2015-2019 participants with past 12-month sleep-related NMUPTS and use of an additional drug(s) (n = 2603) were studied.
Subst Use Addctn J
July 2024
The Bush School of Government and Public Service, Texas A&M University, College Station, TX, USA.
Background: Patients with substance use disorders (SUDs) exhibit low healthcare utilization despite high medical need. Telehealth could boost utilization, but variation in uptake across SUDs is unknown.
Methods: Using Wisconsin Medicaid enrollment and claims data from December 1, 2018, to December 31, 2020, we conducted a cohort study of telemedicine uptake in the all-ambulatory and the primary care setting during telehealth expansion following the COVID-19 public health emergency (PHE) onset (March 14, 2020).
BMJ Open
December 2023
Family and Community Medicine, Penn State College of Medicine, Hershey, Pennsylvania, USA.
Objective: Despite advancement in vaccines and treatments for COVID-19 over the past 2 years, many concerns remain about reinfection and waning immunity against COVID-19 and its variants, especially among people with substance use disorder (SUD). The study assessed the risk of COVID-19 reinfection and severe illness among adults with SUD and their vaccination status to inform management in this vulnerable population as the pandemic continues.
Design: Retrospective cohort study.
J Ethnopharmacol
March 2024
Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, 90112, Songkhla, Thailand; Drug Delivery System and Excellence Center, Prince of Songkla University, Hat Yai, 90112, Songkhla, Thailand. Electronic address:
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