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Cognitive performance in recreational users of MDMA or 'ecstasy': evidence for memory deficits

A. C. Parrott, A. J. Lees, N. J. Garnham, Margaret E. E. Jones, Keith Wesnes

Journal of Psychopharmacology 1998 DOI: 10.1177/026988119801200110 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational cohort Peer reviewed
Sample size 30
Population Young people who were regular or novice MDMA users, or non-users
Duration Single drug-free day assessment
Topics MDMA Serotonin
Keywords Vigilance psychology Cognition Recall Developmental psychology Cognitive psychology Audiology
Citations 226
Key findings Both regular and novice MDMA users recalled significantly fewer words than controls on immediate and delayed word recall tasks, while response speed and vigilance were similar across groups.

Abstract

Cognitive task performance was assessed in three groups of young people: 10 regular users of 3,4- methylenedioxymethamphetamine (MDMA) who had taken 'ecstasy' 10 times or more; 10 novice MDMA users who had taken 'ecstasy' one to nine times; and 10 control subjects who had never taken MDMA. A computerized battery of cognitive tasks (Cognitive Drug Research system) was undertaken on a day when subjects were drug free. Performance on the response speed and vigilance measures (simple reaction time, choice reaction time, number vigilance), was similar across the three subgroups. However on immediate word recall and delayed word recall, both groups of MDMA users recalled significantly less words than controls. Animal research has shown that MDMA can lead to serotonergic neurodegeneration, particularly in the hippocampus and frontal cortex. Although the design of this study was far from ideal, these data are consistent with other findings of memory decrements in recreational MDMA users, possibly caused by serotonergic neurotoxicity.

Comparable studies

Other observational and cohort studies on MDMA, most cited first.

Study Year Design Participants
Subjective Reports of the Effects of MDMA in a Clinical Setting Individuals who took MDMA in a clinical setting 1986 Observational study
Memory impairment in abstinent MDMA ("Ecstasy") users Abstinent MDMA users 1998 Observational cohort
Impaired cognitive performance in drug free users of recreational ecstasy (MDMA) Otherwise healthy young people 2000 Observational
The Psychological and Physiological Effects of MDMA on Normal Volunteers Older, more educated, drug-experienced individuals 1986 Observational cohort
Stimulatory Drugs of Abuse in Surface Waters and Their Removal in a Conventional Drinking Water Treatment Plant Raw and finished drinking water from a Spanish drinking water treatment plant and its... 2008 Observational study

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