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Are psychotic-like experiences related to a discontinuation of cannabis consumption in young adults?
Daedelow, Laura S. Banaschewski, Tobias Berning, Moritz Bokde, Arun L. W. Brühl, Rüdiger Burke Quinlan, Erin Curran, H. Valerie Desrivieres, Sylvane Flor, Herta Grigis, Antoine
Daedelow, Laura S.
Banaschewski, Tobias
Berning, Moritz
Bokde, Arun L. W.
Brühl, Rüdiger
Burke Quinlan, Erin
Curran, H. Valerie
Desrivieres, Sylvane
Flor, Herta
Grigis, Antoine
Author
Daedelow, Laura S.
Banaschewski, Tobias
Berning, Moritz
Bokde, Arun L. W.
Brühl, Rüdiger
Burke Quinlan, Erin
Curran, H. Valerie
Desrivieres, Sylvane
Flor, Herta
Grigis, Antoine
Garavan, Hugh
Hardon, Anita
Kaminski, Jakob
Martinot, Jean-Luc
Paillère Martinot, Marie-Laure
Artiges, Eric
Murray, Hayley
Nees, Frauke
Oei, Nicole Y. L.
Papadopoulos Orfanos, Dimitri
Paus, Tomáš
Poustka, Luise
Hohmann, Sarah
Millenet, Sabina
Rosenthal, Annika
Fröhner, Juliane H.
Smolka, Michael N.
Walter, Henrik
Whelan, Robert
Wiers, Reinout W.
Schumann, Gunter
Heinz, Andreas
ERANID Consortium
IMAGEN Consortium
Banaschewski, Tobias
Berning, Moritz
Bokde, Arun L. W.
Brühl, Rüdiger
Burke Quinlan, Erin
Curran, H. Valerie
Desrivieres, Sylvane
Flor, Herta
Grigis, Antoine
Garavan, Hugh
Hardon, Anita
Kaminski, Jakob
Martinot, Jean-Luc
Paillère Martinot, Marie-Laure
Artiges, Eric
Murray, Hayley
Nees, Frauke
Oei, Nicole Y. L.
Papadopoulos Orfanos, Dimitri
Paus, Tomáš
Poustka, Luise
Hohmann, Sarah
Millenet, Sabina
Rosenthal, Annika
Fröhner, Juliane H.
Smolka, Michael N.
Walter, Henrik
Whelan, Robert
Wiers, Reinout W.
Schumann, Gunter
Heinz, Andreas
ERANID Consortium
IMAGEN Consortium
Abstract
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.
Keywords
cannabis use, psychotic-like experiences, age of first use, perceived stress, cannabis discontinuation hypothesis
Date
2021
Type
Journal article
Journal
Schizophrenia Research
Book
Volume
228
Issue
Page Range
271-279
Article Number
ACU Department
School of Behavioural and Health Sciences
Faculty of Health Sciences
Faculty of Health Sciences
Relation URI
Source URL
Event URL
Open Access Status
License
All rights reserved
File Access
Controlled