Assessment and Evolution of Narrative Identity and Its Relationship to Subjective Multidimensional Well-being and Multidimensional Recovery in First Episode Psychosis

Évaluation et évolution de l'identité Narrative et de Son Lien Avec le Bien-être Multidimensionnel Subjectif et le rétablissement Multidimensionnel Dans le Premier épisode Psychotique

First episode psychosis (FEP) constitutes an important subgroup within psychotic disorders, as the acute impact of a disorder at the time of diagnosis may differ from its long-term impact over the following decades. Narrative is identified as a sense of personal agency, of belonging to a social group, metacognition, and well-being. Patients with schizophrenia have lower levels of agency and communion compared to HIV-positive participants. However, the themes of agency and communion and metacognition do not reflect all factors representing narrative identity. In order to measure well-being, it is also necessary to introduce a specific and multidimensional measure that will allow a more precise understanding of the phenomenon.

In FEP, a link has been demonstrated between the specificity of self-recollection and functional outcomes. Given that the transitional developmental stage between adolescence and adulthood is a key developmental window for narrative identity as well as psychotic disorders and that narrative identity is positively associated with mental health, this study will therefore focus on the acquisition of narrative identity in the FEP. It will investigate the extent to which narrative identity has an impact on multidimensional subjective well-being and whether it can predict multidimensional subjective well-being over time. The study investigators hypothesize that the levels of the various components of narrative identity would be lower in cases of FEP compared to patients with other "chronic" psychotic conditions and controls.

Inclusion Criteria:

• Subject who has given their free and informed consent.
• Subject who has signed the consent form.
• Subject who is a member of or beneficiary of a health insurance plan.

For the FEP group:

• Patient treated in a psychiatric department (consultation or hospitalization) for a FEP defined by:
• Presence of positive psychotic symptoms (delusions and/or hallucinations and/or conceptual disorganization) evolving for at least one week, either every day or at least 3 times a week for at least one hour per occasion
• Never having taken neuroleptic treatment with an antipsychotic purpose (with the exception of antipsychotic treatment initiated for the current episode)
• Disorder meeting DSM 5 criteria from the following list: delusional disorder, brief psychotic disorder lasting more than 7 days, schizophreniform disorder, schizophrenia, schizoaffective disorder, substance-induced psychotic disorder lasting more than 7 days, other specific or non-specific schizophrenia spectrum disorder or other psychotic disorder, bipolar disorder I or II with mood-congruent and mood-incongruent psychotic features, substance-induced bipolar disorder with mood-congruent and mood-incongruent psychotic features, major depressive disorder with mood-congruent and mood-incongruent psychotic features

For the "Chronic" group:

• Patients diagnosed with a disorder meeting DSM-5 criteria for more than 18 months from the following list: delusional disorder, brief psychotic disorder lasting more than 7 days, schizophreniform disorder, schizophrenia, schizoaffective disorder, substance-induced psychotic disorder lasting more than 7 days, other specific or non-specific schizophrenia spectrum disorder or other psychotic disorder, bipolar I or II disorder with mood-congruent and mood-incongruent psychotic features, substance-induced bipolar disorder with mood-congruent and mood-incongruent psychotic features, major depressive disorder with mood-congruent and mood-incongruent psychotic features

Exclusion Criteria:

• The subject is participating in category 1 RIPH or a clinical drug trial or clinical investigation study, or is in a period of exclusion determined by a previous study
• The patient is unable to express consent
• It is impossible to give the subject informed information
• The patient is under safeguard of justice or state guardianship
• Pregnant or breastfeeding subject.
• Patient with a history of traumatic brain injury
• Patient with moderate to severe mental retardation (IQ ≤ 55)

For the FEP group:

• FEP related to a drug-induced psychotic disorder or due to another medical condition

For the "Control" group:

• Patient with lifetime experience of FEP
• Patient with a diagnosis of a disorder meeting DSM-5 criteria from the following list: delusional disorder, brief psychotic disorder lasting more than 7 days, schizophrenia-like disorder, schizophrenia, schizoaffective disorder, substance-induced psychotic disorder lasting more than 7 days, other specific or non-specific schizophrenia spectrum disorder or other psychotic disorder, bipolar I or II disorder with mood-congruent and mood-incongruent psychotic features, bipolar disorder with mood-congruent and mood-incongruent psychotic features substance-induced mood, major depressive disorder with psychotic features congruent and incongruent with mood