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Episodic foresight deficits in regular, but not recreational, cannabis users

Mercuri, K; Terrett, G; Henry, JD; Curran, HV; Elliott, M; Rendell, PG; (2018) Episodic foresight deficits in regular, but not recreational, cannabis users. Journal of Psychopharmacology , 32 (8) pp. 876-882. 10.1177/0269881118776672. Green open access

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Abstract

BACKGROUND: Cannabis use is associated with a range of neurocognitive deficits, including impaired episodic memory. However, no study to date has assessed whether these difficulties extend to episodic foresight, a core component of which is the ability to mentally travel into one’s personal future. This is a particularly surprising omission given that episodic memory is considered to be critical to engage episodic foresight. AIMS: In the present study, we provide the first test of how episodic foresight is affected in the context of differing levels of cannabis use, and the degree to which performance on a measure of this construct is related to episodic memory. RESULTS: Fifty-seven regular cannabis users (23 recreational, 34 regular) and 57 controls were assessed using an adapted version of the Autobiographical Interview. The results showed that regular-users exhibited greater impairment of episodic foresight and episodic memory than both recreational-users and cannabis-naïve controls. CONCLUSIONS: These data therefore show for the first time that cannabis-related disruption of cognitive functioning extends to the capacity for episodic foresight, and they are discussed in relation to their potential implications for functional outcomes in this group.

Type: Article
Title: Episodic foresight deficits in regular, but not recreational, cannabis users
Open access status: An open access version is available from UCL Discovery
DOI: 10.1177/0269881118776672
Publisher version: https://doi.org/10.1177%2F0269881118776672
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Episodic foresight, cannabis, Autobiographical Interview, episodic memory
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Clinical, Edu and Hlth Psychology
URI: https://discovery.ucl.ac.uk/id/eprint/10059374
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