Efficacy evaluation of art therapy in community-based psychiatric rehabilitation

INTERVENTION: Intervention group:Receive art therapy combined with standard rehabilitation services;Control group:Receive standard rehabilitation services only; CONDITION: psychiatry PRIMARY OUTCOME: Positive and Negative Syndrome Scale (PANSS); SECONDARY OUTCOME: Life Satisfaction Inde X(LSI);Social Deficit Syndrome Scale (SDSS);Insight and Treatment Attitude Questionnaire (ITAQ);Medical Rehabilitation Status Scale (MRSS); INCLUSION CRITERIA: 1. Age 18–65 years, any sex. 2. Diagnosed by a psychiatrist according to DSM‐5 or ICD‐10/ICD‐11 with a severe mental disorder (e.g., schizophrenia spectrum disorders, schizoaffective disorder, bipolar disorder with psychotic features, or major depressive disorder with psychotic features), currently in a community‐based rehabilitation phase and clinically stable outpatient. 3. Clinically stable for at least 4 weeks: no acute exacerbation or hospitalization; no substantial changes to antipsychotic regimen (no change of agent and dose variation <=20% permitted). 4. Presence of social dysfunction: at least one domain impaired as indicated by SDSS. 5. Ability and willingness to participate in the intervention and assessments: able to follow instructions and expected to attend >=80% of sessions; ITAQ indicates basic insight/treatment attitude, or can complete procedures with caregiver support. 6. Residual psychiatric symptoms at baseline to allow measuremen