Validation of a VOICE MAnagement Program in Schizophrenia VVoice MAPS

Inclusion Criteria Consenting patients over 18 years of age will be enrolled in the study if they meet all of the following criteria: * Diagnosis: Fulfill DSM-5 criteria for schizophrenia or schizoaffective disorder. * Resistant AVHs: Present treatment-resistant auditory verbal hallucinations (AVHs), defined as the persistence of daily hallucinations without remission despite adequate antipsychotic medication for at least 3 months. * Motivation: Express a request for relief from voices. * Treatment Setting: Are outpatients being treated in psychiatric departments at the Public Mental Health Institution of Guadeloupe or the University Hospital Center of Nîmes. * Severity: Have a score of greater than 9 on the Psychotic Symptom Rating Scale - Auditory Hallucinations subscale (PSYRATS-AH). Exclusion Criteria : Patients will be excluded from the study if they meet any of the following criteria: * Participation in another study: Currently taking part in another clinical trial or within the exclusion period of another study. * Consent refusal: Refuse to sign the written informed consent. * Inability to provide informed consent: Failure or impossibility to provide the patient with sufficient information to allow an informed decision. * Severe substance abuse: Presence of severe substance use disorder. * Acute somatic decompensation: Experiencing an acute medical condition that may compromise participation in the study.