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This version was published on September 1, 2007
Journal of Psychopharmacology, Vol. 21, No. 7, 709-717 (2007)
DOI: 10.1177/0269881107077220

Everyday memory deficits in ecstasy-polydrug users

Catharine Montgomery

School of Psychology, Liverpool John Moores University, Liverpool, UK, c.a.montgomery{at}ljmu.ac.uk

John E. Fisk

Department of Psychology, University of Central Lancashire, Preston, UK

Recent research suggests that not only does the use of recreational drugs impact on working memory functioning, but more `everyday' aspects of memory (e.g. remembering to do something in the future) are also affected. Forty-three ecstasy-polydrug users and 51 non-ecstasy users were recruited from a university population. Each participant completed the Cognitive Failures Questionnaire (CFQ) and Everyday Memory Questionnaire (EMQ). Of these, 28 ecstasy-polydrug users and 35 non-ecstasy users completed the Prospective Memory Questionnaire (PMQ). In addition, an objective measure of cognitive failures (the CFQ-for-others) was completed by friends of participants. With the exception of the CFQ-for-others, in each regression equation, cannabis emerged as the only significant predictor of everyday and prospective memory deficits. Significant correlations were found between the different indicators of everyday memory and various measures of illicit drug use. Cannabis featured prominently in this respect. The present study provides further support for cannabis related deficits in aspects of everyday memory functioning. Ecstasy may aLso be associated with cognitive slips, but not to the same extent as cannabis.

Key Words: ecstasy • MDMA • cannabis • everyday memory • prospective memory • failure


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