Clinical Research Directory

Inclusion Criteria: 1. Patients (male or female) aged 18-65 2. Patients with schizophrenia according to DSM 5 criteria with Comorbid diagnosis of "cannabis use disorder" 3. Stabilized patients: total score = 80 at initial PANSS score and = 3 at the following PANSS points: * conceptual disorganization * distrust * hallucinatory behaviour * Unusual content of thought 4. Patients without any other drug or psychotherapeutic treatment for cannabis dependence ("naive" patients) 5. Reported cannabis use greater than three times per week in the past three years 6. Signed consent to participate in research 7. Affiliation to a French social security scheme 8. Patient fluent in the French language Exclusion Criteria: 1. Presence of any other psychiatric disorder, as per DSM-5 criteria. 2. Pregnancy, possible pregnancy due to lack of contraception, breastfeeding. 3. Currently active suicidal or self-injurious ideation (suicidal or not) 4. Patients with Serious medical codition 5. Other "moderate" to "severe" addictions, according to DSM 5 criteria (excluding tobacco and coffee). 6. Contraindications to tDCS (presence of intracranial metal material, intracranial hypertension, etc.). 7. Subjects already treated by tDCS 8. Patients under legal guardianship (except under curatorship) 9. Patients under safeguard of justice