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Cited by 203Cannabis and Cannabinoid ResearchSchizophrenia research and treatmentPsychedelics and Drug Studies

The DOI matches its Crossref record; 73 of the 73 references it cites were found in a registry or an index.

Induction of Psychosis byΔ9-Tetrahydrocannabinol Reflects Modulation of Prefrontal and Striatal Function During Attentional Salience Processing

Bhattacharyya, Sagnik·2012·Archives of General Psychiatry
DOI 10.1001/archgenpsychiatry.2011.161
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Abstract

CONTEXT: The aberrant processing of salience is thought to be a fundamental factor underlying psychosis. Cannabis can induce acute psychotic symptoms, and its chronic use may increase the risk of schizophrenia. We investigated whether its psychotic effects are mediated through an influence on attentional salience processing. OBJECTIVE: To examine the effects of Δ9-tetrahydrocannabinol (Δ9-THC) and cannabidiol (CBD) on regional brain function during salience processing. DESIGN: Volunteers were studied using event-related functional magnetic resonance imaging on 3 occasions after administration of Δ9-THC, CBD, or placebo while performing a visual oddball detection paradigm that involved allocation of attention to infrequent (oddball) stimuli within a string of frequent (standard) stimuli. SETTING: University center. PARTICIPANTS: Fifteen healthy men with minimal previous cannabis use. MAIN OUTCOME MEASURES: Symptom ratings, task performance, and regional brain activation. RESULTS: During the processing of oddball stimuli, relative to placebo, Δ9-THC attenuated activation in the right caudate but augmented it in the right prefrontal cortex. Δ9-Tetrahydrocannabinol also reduced the response latency to standard relative to oddball stimuli. The effect of Δ9-THC in the right caudate was negatively correlated with the severity of the psychotic symptoms it induced and its effect on response latency. The effects of CBD on task-related activation were in the opposite direction of those of Δ9-THC; relative to placebo, CBD augmented left caudate and hippocampal activation but attenuated right prefrontal activation. CONCLUSIONS: Δ9-Tetrahydrocannabinol and CBD differentially modulate prefrontal, striatal, and hippocampal function during attentional salience processing. These effects may contribute to the effects of cannabis on psychotic symptoms and on the risk of psychotic disorders.

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Metadata

Authors
Bhattacharyya, S.
Affiliations
King's College London (GB)
Corresponding author
Bhattacharyya, Sagnik
ORCID
Bhattacharyya, Sagnik
Venue
Archives of General Psychiatry
Publisher
American Medical Association (AMA)
Published
2012-01-01
Volume
69
Issue
1
Pages
27
ISSN
0003-990X (ISSN-L)
DOI
10.1001/archgenpsychiatry.2011.161
OpenAlex
W2158902140
Cited by
203
References
73
Citations by year
2026: 5 · 2025: 5 · 2024: 12 · 2023: 7 · 2022: 8 · 2021: 19 · 2020: 18 · 2019: 18 · 2018: 16 · 2017: 20 · 2016: 11 · 2015: 10 · 2014: 20 · 2013: 20 · 2012: 14
FWCI
15.05
Type
journal article
Language
en
Open access
closed
Locations
  • Archives of General Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion)
Funders
National Institute for Health and Care Research (NIHR-CS-011-001)
Topics
  • Health Sciences › Medicine › Pharmacology (medical) › Cannabis and Cannabinoid Research
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Social Sciences › Psychology › Clinical Psychology › Psychedelics and Drug Studies
Keywords
delta-9-tetrahydrocannabinol, cannabidiol, cannabis-induced psychosis, caudate nucleus, prefrontal cortex, hippocampus, striatal function, psychotic symptoms, schizophrenia risk, response latency
MeSH terms
Adult, Attention, Cannabidiol, Corpus Striatum, Hallucinogens, Humans, Male, Psychotic Disorders, Reaction Time, Space Perception, Dronabinol, Prefrontal Cortex, Young Adult

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