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Fisk, JE, Montgomery, C, Wareing, M and Murphy, PN (2006) The effects of concurrent cannabis use among ecstasy users: neuroprotective or neurotoxic? HUMAN PSYCHOPHARMACOLOGY-CLINICAL AND EXPERIMENTAL, 21 (6). pp. 355-366. ISSN 0885-6222
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Abstract
The research evidence regarding the potential effects of ecstasy suggests that it may be neurotoxic and that its use is associated with cognitive impairment. In recent years evidence has emerged suggesting that cannabinoids, the active ingredients in cannabis, can be neuroprotective under certain conditions. Given that many ecstasy users also consume cannabis at the same time, the possibility emerges that these individuals might be less susceptible to ecstasy-related impairment. The present paper reanalyses the data from a number of previous studies, contrasting the performance of those individuals who generally consume cannabis and ecstasy at the same time with those who generally consume ecstasy on its own. The two ecstasy-using groups are compared with non-ecstasy users on a range of measures including processing speed, random letter generation, verbal and visuo-spatial working memory span, reasoning and associative learning. The two ecstasy user groups did not differ significantly from each other on any of the measures. Both user groups were significantly worse than non-ecstasy users on measures of associative learning, verbal and visuo-spatial working memory and reasoning. The results suggest that consuming cannabis at the same time as ecstasy does not reduce the likelihood of cognitive impairment. Copyright © 2006 John Wiley & Sons, Ltd.
| Item Type: | Article |
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| Additional Information: | This is the peer reviewed version of the following article: The effects of concurrent cannabis use among ecstasy users: neuroprotective or neurotoxic?, which has been published in final form at http://dx.doi.org/10.1002/hup.777. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. |
| Uncontrolled Keywords: | 1115 Pharmacology And Pharmaceutical Sciences, 1701 Psychology, 1702 Cognitive Science |
| Subjects: | B Philosophy. Psychology. Religion > BF Psychology R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry |
| Divisions: | Natural Sciences & Psychology (closed 31 Aug 19) |
| Publisher: | JOHN WILEY & SONS LTD |
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| Date Deposited: | 15 May 2015 14:26 |
| Last Modified: | 04 Sep 2021 14:22 |
| DOI or ID number: | 10.1002/hup.777 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/1105 |
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