Related Experiment Video
Updated: Mar 7, 2026

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
Published on: August 18, 2020
Self-Stigma Patterns in Cannabis-Induced Versus Non-Cannabis-Induced First-Episode Psychosis
Valerio Ricci1, Giuseppe Maina1,2
1San Luigi Gonzaga Hospital, Turin, Orbassano, Italy.
Objective:
This study examined differences in self-stigma between patients with cannabis-induced first-episode psychosis (C-FEP, n = 10) and non-cannabis-induced first-episode psychosis (NC-FEP, n = 10).
Methods:
We used three core measures: the Self-Stigma of Mental Illness Scale (SSMIS), the Rosenberg Self-Esteem Scale (RSES), and qualitative interviews.
Results:
Despite similar levels of stereotype awareness, C-FEP patients showed significantly lower stereotype concurrence (p < .01) and self-application (p < .05) than NC-FEP patients. C-FEP patients attributed their symptoms to cannabis use rather than inherent vulnerability, potentially buffering against internalized stigma, but expressed greater disclosure concerns. Self-esteem was higher in the C-FEP group (p < .05).
Conclusions:
These findings suggest that causal attribution influences self-stigma manifestation, with important implications for tailored stigma interventions in early psychosis.
Related Concept Videos
Psychological and Sociocultural Causes of Schizophrenia
Positive Symptoms Schizophrenia: Hallucinations and Delusions
Hallucinations
Hallucinations in...
Positive Symptoms of Schizophrenia: Hallucinations and Delusions
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes...
Negative and Cognitive Symptoms of Schizophrenia
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...
Personality Disorders: Paranoid and Schizoid
Paranoid Personality Disorder
Paranoid personality disorder is...
Self-Presentation: Self-Monitoring and Self-Handicapping

