Skip to main content

Cognitive mechanisms in cannabis-related paranoia; Initial testing and model proposal.

Newman-Taylor, K., Richardson, T., Sood, M., Sopp, M., Perry, E. and Bolderston, H., 2020. Cognitive mechanisms in cannabis-related paranoia; Initial testing and model proposal. Psychosis. (In Press)

Full text available as:

[img] PDF
Newman Taylor 2020 Cannabis-related paranoia accepted ms.pdf - Accepted Version
Restricted to Repository staff only until 13 May 2021.
Available under License Creative Commons Attribution Non-commercial.

331kB

DOI: 10.1080/17522439.2020.1757742

Abstract

Cannabis use can increase severity of symptoms and risk of relapse for people with psychosis. Childhood sexual abuse and high schizotypy increase the risk further. The mechanisms involved remain unclear, and this limits psychological therapies. In three linked studies, we examined the role of two candidate mechanisms–external attribution and cognitive fusion. Study 1 examined these processes in a general population sample and showed that paranoia, psychotic-type experiences, and linked distress were higher in cannabis-users, and mediated by cognitive fusion but not external attribution. Study 2 examined the impact of established risk factors in general population cannabis-users and showed that external attribution and cognitive fusion partially or fully accounted for the effects of childhood sexual abuse and schizotypy on paranoia, psychotic-type experiences and linked distress. Study 3 examined these same processes in a clinical population of people with psychosis and found that external attribution and cognitive fusion partially or fully accounted for the impact of gender, age of first use, sexual abuse and schizotypy. External attribution and cognitive fusion may be key mechanisms in the maintenance of cannabis-related paranoia and account for the impact of established risk factors. We present a cognitive model incorporating these processes to inform clinical practice.

Item Type:Article
ISSN:1752-2439
Uncontrolled Keywords:Cannabis, paranoia, psychosis, external attribution, cognitive fusion, decentred awareness
Group:Faculty of Science & Technology
ID Code:34121
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:09 Jun 2020 10:49
Last Modified:09 Jun 2020 10:49

Downloads

Downloads per month over past year

More statistics for this item...
Repository Staff Only -