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Updated: Jun 5, 2026

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
Published on: August 18, 2020
Cannabis and psychopathology : update 2004
Sandeep Grover1, Debasish Basu
1Senior Resident, Drug De-addiction & Treatment Centre, Department of Psychiatry, Postgraduate Institute of Medical Education & Research, Chandigarh 160012.
Recent research highlights significant links between cannabis use and various mental health conditions, including psychosis, depression, and anxiety. While causality is complex, cannabis may trigger or worsen these disorders in vulnerable individuals.
Area of Science:
- Psychiatry
- Neuroscience
- Addiction Medicine
Background:
- Cannabis use and its relationship with psychopathology is a significant area of academic and clinical interest.
- Research over the past decade has focused on several key psychiatric syndromes associated with cannabis use.
Purpose of the Study:
- To provide an updated overview of research on cannabis use and psychopathology.
- To examine the evidence for associations between cannabis use and specific psychiatric conditions.
Main Methods:
- Review of recent scientific literature on cannabis use and mental health.
- Analysis of studies investigating cannabis withdrawal, psychotic disorders, depression, anxiety, and cognitive impairment.
Main Results:
- A clinically significant association exists between cannabis use disorders and psychotic syndromes, depression, anxiety, and mild cognitive impairment.
- The exact nature of these associations remains unclear, with ongoing debate regarding specific syndromes like cannabis withdrawal and 'cannabis psychosis'.
- Cannabis use may indirectly contribute to schizophrenia development in some heavy users or precipitate psychosis in vulnerable individuals.
Conclusions:
- Cannabis use is significantly associated with several psychiatric conditions, though causality is complex.
- Cannabis use may play a role in the onset or exacerbation of mental health disorders, particularly in predisposed individuals.
- Further research is needed to clarify the etiological pathways and clinical implications of cannabis use on mental health.
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