PMID- 22831704 OWN - NLM STAT- MEDLINE DCOM- 20131113 LR - 20191210 IS - 1360-0443 (Electronic) IS - 0965-2140 (Linking) VI - 108 IP - 1 DP - 2013 Jan TI - A prospective study of learning, memory, and executive function in new MDMA users. PG - 136-45 LID - 10.1111/j.1360-0443.2012.03977.x [doi] AB - AIMS: It is still unclear if cognitive abnormalities in human 3,4-methylenedioxymeth-amphetamine (MDMA) users existed before the beginning of use or if other confounders could explain the deficits. The present study was conducted in order to assess the relationship between beginning MDMA use and subsequent cognitive performance and to overcome previous methodological shortcomings. DESIGN: A prospective cohort study in new MDMA users between 2006 and 2009 with a follow-up duration of 12 months. SETTING AND PARTICIPANTS: Of the 149 almost MDMA-naive subjects examined at the initial assessment, 109 subjects participated again after 1 year. During this period, 43 subjects did not use any other illicit substance apart from cannabis; 23 subjects used more than 10 pills MDMA (mean = 33.6). These groups then were compared by means of multivariate analyses of variance. MEASUREMENTS: Change scores between the initial examination and follow-up on a neuropsychological test battery including measures of learning, memory, and frontal executive functions [Auditiv-Verbaler Lerntest (AVLT), Lern- und Gedachtnistest (LGT) 3, digit span test, digit symbol test, Stroop task, Trail-making test]. In addition, a comprehensive number of possibly relevant confounders including age, general intelligence, cannabis use, alcohol use, cigarette use, medical treatment, participation in sports, nutrition, sleep patterns and subjective wellbeing was assessed. FINDINGS: Groups did not differ in any of the potential confounders. However, significant effects of immediate and delayed recall of a visual paired associates learning task between MDMA users and controls were found (respectively, F ((1,64)) = 11.43, P = 0.001, eta(2) = 0.136 and F ((1,64)) = 11.08, P = 0.002, eta(2) = 0.144). No significant differences on the other neuropsychological tests were found. CONCLUSIONS: MDMA appears to impair visual paired associates learning in new users, suggesting serotonergic dysfunction in hippocampal regions as a consequence of MDMA use. CI - (c) 2012 The Authors, Addiction (c) 2012 Society for the Study of Addiction. FAU - Wagner, Daniel AU - Wagner D AD - Department of Psychiatry and Psychotherapy, University of Cologne, Germany. FAU - Becker, Benjamin AU - Becker B FAU - Koester, Philip AU - Koester P FAU - Gouzoulis-Mayfrank, Euphrosyne AU - Gouzoulis-Mayfrank E FAU - Daumann, Joerg AU - Daumann J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120726 PL - England TA - Addiction JT - Addiction (Abingdon, England) JID - 9304118 RN - 0 (Hallucinogens) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) SB - IM MH - Adolescent MH - Adult MH - Amphetamine-Related Disorders/*psychology MH - Analysis of Variance MH - Executive Function/*drug effects MH - Female MH - Follow-Up Studies MH - Hallucinogens/*adverse effects MH - Health Behavior MH - Humans MH - Learning Disabilities/*chemically induced MH - Male MH - Memory Disorders/*chemically induced MH - N-Methyl-3,4-methylenedioxyamphetamine/*adverse effects MH - Neuropsychological Tests MH - Prospective Studies MH - Surveys and Questionnaires MH - Young Adult EDAT- 2012/07/27 06:00 MHDA- 2013/11/14 06:00 CRDT- 2012/07/27 06:00 PHST- 2011/09/22 00:00 [received] PHST- 2011/11/22 00:00 [revised] PHST- 2012/06/11 00:00 [accepted] PHST- 2012/07/27 06:00 [entrez] PHST- 2012/07/27 06:00 [pubmed] PHST- 2013/11/14 06:00 [medline] AID - 10.1111/j.1360-0443.2012.03977.x [doi] PST - ppublish SO - Addiction. 2013 Jan;108(1):136-45. doi: 10.1111/j.1360-0443.2012.03977.x. Epub 2012 Jul 26.