IDEAS home Printed from https://ideas.repec.org/a/taf/rpsyxx/v12y2020i4p314-327.html
   My bibliography  Save this article

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

Author

Listed:
  • Katherine Newman-Taylor
  • Thomas Richardson
  • Monica Sood
  • Mat Sopp
  • Emma Perry
  • Helen Bolderston

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.

Suggested Citation

  • Katherine Newman-Taylor & Thomas Richardson & Monica Sood & Mat Sopp & Emma Perry & Helen Bolderston, 2020. "Cognitive mechanisms in cannabis-related paranoia; Initial testing and model proposal," Psychosis, Taylor & Francis Journals, vol. 12(4), pages 314-327, October.
    • Handle: RePEc:taf:rpsyxx:v:12:y:2020:i:4:p:314-327
    DOI: 10.1080/17522439.2020.1757742
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1080/17522439.2020.1757742
    Download Restriction: Access to full text is restricted to subscribers.
    File URL: https://libkey.io/10.1080/17522439.2020.1757742?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:taf:rpsyxx:v:12:y:2020:i:4:p:314-327. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Chris Longhurst (email available below). General contact details of provider: http://www.tandfonline.com/RPSY20 .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.