BACKGROUND: Cannabis use is associated with the occurrence of psychotic experiences. However there are multiple distinct psychotic experiences, each likely to occur as quantitative traits in the general population. In this study we tested for an association of cannabis use with a dimensional assessment of persecutory ideation. METHOD: A total of 1714 individuals from the general population completed a dimensional measure of current persecutory ideation and reported on whether they had ever taken cannabis. RESULTS: Of all participants, 648 (38%) reported a history of cannabis use. These individuals reported significantly higher current levels of persecutory ideation. The amount of variance in paranoia scores explained was low. Individuals with a history of cannabis use had almost twice the odds of reporting any paranoid ideation in the past month compared with individuals who had never taken cannabis. CONCLUSIONS: Using a state of the art assessment, the study adds to findings of an association of persecutory ideation with cannabis use.
BACKGROUND: Cannabis use is associated with the occurrence of psychotic experiences. However there are multiple distinct psychotic experiences, each likely to occur as quantitative traits in the general population. In this study we tested for an association of cannabis use with a dimensional assessment of persecutory ideation. METHOD: A total of 1714 individuals from the general population completed a dimensional measure of current persecutory ideation and reported on whether they had ever taken cannabis. RESULTS: Of all participants, 648 (38%) reported a history of cannabis use. These individuals reported significantly higher current levels of persecutory ideation. The amount of variance in paranoia scores explained was low. Individuals with a history of cannabis use had almost twice the odds of reporting any paranoid ideation in the past month compared with individuals who had never taken cannabis. CONCLUSIONS: Using a state of the art assessment, the study adds to findings of an association of persecutory ideation with cannabis use.
Authors: Daniel Freeman; Bao S Loe; David Kingdon; Helen Startup; Andrew Molodynski; Laina Rosebrock; Poppy Brown; Bryony Sheaves; Felicity Waite; Jessica C Bird Journal: Psychol Med Date: 2019-11-20 Impact factor: 7.723
Authors: Daniel Freeman; Graham Dunn; Robin M Murray; Nicole Evans; Rachel Lister; Angus Antley; Mel Slater; Beata Godlewska; Robert Cornish; Jonathan Williams; Martina Di Simplicio; Artemis Igoumenou; Rudolf Brenneisen; Elizabeth M Tunbridge; Paul J Harrison; Catherine J Harmer; Philip Cowen; Paul D Morrison Journal: Schizophr Bull Date: 2014-07-15 Impact factor: 9.306
Authors: Michael A P Bloomfield; Chandni Hindocha; Sebastian F Green; Matthew B Wall; Rachel Lees; Katherine Petrilli; Harry Costello; M Olabisi Ogunbiyi; Matthijs G Bossong; Tom P Freeman Journal: Pharmacol Ther Date: 2018-10-19 Impact factor: 12.310