Schizophrenia Research
January 9, 2021
Leah G. Pope, M. Manseau, M. Kelley et al.
OBJECTIVE The nature of associations between recent cannabis use and negative symptoms, positive symptoms, and neurocognitive deficits remains unclear. In a relatively large sample of well-characterized patients with first-episode psychosis, we hypothesized that, compared to first-episode patients without cannabis use in the three months prior to first hospitalization, those having used...
Schizophrenia Bulletin
April 1, 2018
M. Birnbaum, L. Pauselli, Sean Cleary et al.
Abstract Background The Cannabis Experiences Questionnaire (CEQ) was developed to measure the subjective experiences of cannabis use both during and after intoxication. Despite the need to better understand the nature of the complex and significant relationship between cannabis use and early psychosis, this questionnaire has rarely been used in individuals with first-episode psychosis. Methods...
Early Intervention in Psychiatry
October 20, 2017
M. Birnbaum, S. Cleary, C. R. Wan et al.
The Cannabis Experiences Questionnaire (CEQ) was developed to measure the subjective experiences of cannabis use both during and after intoxication. Despite the need to better understand the nature of the complex and significant relationship between cannabis use and early psychosis, this questionnaire has rarely been used in individuals with first‐episode psychosis.
Epilepsy & Behavior
November 2010
Nancy J Thompson, Elizabeth Reisinger Walker, Natasha Obolensky et al.
This study evaluated the efficacy of a newly developed, home-based depression intervention for people with epilepsy. Based on mindfulness-based cognitive therapy (MBCT), the eight-session, weekly intervention was designed for group delivery via the Internet or telephone. Forty participants were randomly assigned to intervention or waitlist. Depressive symptoms and other outcomes were measured...
Schizophrenia Research
October 30, 2010
Michael T Compton, Beth Broussard, Claire E. Ramsay et al.
Introduction Limited research indicates that pre-illness cannabis use may result in an earlier age at onset of psychosis, though little is known about the influence of prior cannabis use on the premorbid and prodromal phases. This study examined effects of prior or concurrent cannabis (as well as nicotine and alcohol) use on: (1) early adolescent (12–15 years) premorbid functioning, (2) late...
American Journal of Psychiatry
October 1, 2009
Michael T Compton, M. Kelley, Claire E. Ramsay et al.
Objective Several reports suggest that cannabis use is associated with an earlier age at onset of psychosis, though not all studies have operationalized cannabis use as occurring prior to onset of symptoms. This study addressed whether pre-onset cannabis use (and alcohol and tobacco use) is associated with an earlier age at onset of prodromal and psychotic symptoms. Additionally, effects of the...