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Are psychotic-like experiences related to a discontinuation of cannabis consumption in young adults?

Objective - To assess changes in cannabis use in young adults as a function of psychotic-like experiences. - Method - Participants were initially recruited at age 14 in high schools for the longitudinal IMAGEN study. All measures presented here were assessed at follow-ups at age 19 and at age 22, re...

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Main Authors: Daedelow, Laura S. (Author) , Banaschewski, Tobias (Author) , Berning, Moritz (Author) , Bokde, Arun L. W. (Author) , Brühl, Rüdiger (Author) , Burke Quinlan, Erin (Author) , Curran, H. Valerie (Author) , Desrivières, Sylvane (Author) , Flor, Herta (Author) , Grigis, Antoine (Author) , Garavan, Hugh (Author) , Hardon, Anita (Author) , Kaminski, Jakob (Author) , Martinot, Jean-Luc (Author) , Paillère Martinot, Marie-Laure (Author) , Artiges, Eric (Author) , Murray, Hayley (Author) , Nees, Frauke (Author) , Oei, Nicole Y. L. (Author) , Papadopoulos Orfanos, Dimitri (Author) , Paus, Tomáš (Author) , Poustka, Luise (Author) , Hohmann, Sarah (Author) , Millenet, Sabina (Author) , Rosenthal, Annika (Author) , Fröhner, Juliane (Author) , Smolka, Michael (Author) , Walter, Henrik (Author) , Whelan, Robert (Author) , Wiers, Reinout W. (Author) , Schumann, Gunter (Author) , Heinz, Andreas (Author)
Format: Article (Journal)
Language:English
Published: February 2021
In: Schizophrenia research
Year: 2021, Volume: 228, Pages: 271-279
ISSN:1573-2509
DOI:10.1016/j.schres.2021.01.002
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.schres.2021.01.002
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0920996421000220
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Author Notes:Laura S. Daedelow, Tobias Banaschewski, Moritz Berning, Arun L.W. Bokde, Rüdiger Brühl, Erin Burke Quinlan, H. Valerie Curran, Sylvane Desrivières, Herta Flor, Antoine Grigis, Hugh Garavan, Anita Hardon, Jakob Kaminski, Jean-Luc Martinot, Marie-Laure Paillère Martinot, Eric Artiges, Hayley Murray, Frauke Nees, Nicole Y.L. Oei, Dimitri Papadopoulos Orfanos, Tomáš Paus, Luise Poustka, Sarah Hohmann, Sabina Millenet, Annika Rosenthal, Juliane H. Fröhner, Michael N. Smolka, Henrik Walter, Robert Whelan, Reinout W. Wiers, Gunter Schumann, Andreas Heinz, ERANID Consortium and IMAGEN Consortium
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Summary:Objective - To assess changes in cannabis use in young adults as a function of psychotic-like experiences. - Method - Participants were initially recruited at age 14 in high schools for the longitudinal IMAGEN study. All measures presented here were assessed at follow-ups at age 19 and at age 22, respectively. Perceived stress was only assessed once at age 22. Ever users of cannabis (N = 552) gave qualitative and quantitative information on cannabis use and psychotic-like experiences using the Community Assessment of Psychic Experiences (CAPE). Of those, nearly all n = 549 reported to have experienced at least one psychotic experience of any form at age 19. - Results - Mean cannabis use increased from age 19 to 22 and age of first use of cannabis was positively associated with a change in cannabis use between the two time points. Change in cannabis use was not significantly associated with psychotic-like experiences at age 19 or 22. In exploratory analysis, we observed a positive association between perceived stress and the experience of psychotic experiences at age 22. - Conclusion - Age of first use of cannabis influenced trajectories of young cannabis users with later onset leading to higher increase, whereas the frequency of psychotic-like experiences was not associated with a change in cannabis use. The observed association between perceived stress and psychotic-like experiences at age 22 emphasizes the importance of stress experiences in developing psychosis independent of cannabis use.
Item Description:Gesehen am 26.04.2021
Physical Description:Online Resource
ISSN:1573-2509
DOI:10.1016/j.schres.2021.01.002

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