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  • Title: Anhedonia in the Psychosis Risk Syndrome: State and Trait Characteristics.
    Author: Pelizza L, Azzali S, Paterlini F, Garlassi S, Scazza I, Chiri LR, Poletti M, Pupo S, Raballo A.
    Journal: Psychiatr Danub; 2021; 33(1):36-47. PubMed ID: 33857038.
    Abstract:
    BACKGROUND: Previous studies reported deficits in pleasure experience in schizophrenia, but little is known about anhedonia in psychosis risk syndrome. Aim of this study was: (1) to assess anhedonia in distinct help-seeking subgroups of young people identified through the Ultra-High Risk (UHR) criteria, (2) to explore its association with functioning and psychopathology in the UHR group, and (3) to monitor longitudinally its stability in UHR individuals along 1-year follow-up period. SUBJECTS AND METHODS: All participants (78 UHR, 137 with a First Episode Psychosis (FEP), and 95 non-UHR/FEP), aged 13-35 years, completed the Comprehensive Assessment of At-Risk Mental States (CAARMS), the Beck Depression Inventory-II (BDI-II), the Schizotypal Personality Questionnaire - Brief version (SPQ-B), the Brief O-LIFE questionnaire (BOL), and the World Health Organization Quality of Life - Brief version (WHOQOL-BREF). We adopted two different indexes of anhedonia: i.e. CAARMS "Anhedonia" item 4.3 and BOL "Introvertive Anhedonia" subscale scores. RESULTS: In comparison with non-UHR/FEP, UHR individuals showed higher baseline CAARMS item 4.3 and BOL "Introvertive Anhedonia" subscale scores. No difference in anhedonia scores between UHR and FEP patients was found. After 1-year follow-up period, UHR subjects had a significant decrease in severity exclusively on CAARMS item 4.3 subscore. CONCLUSIONS: In the UHR group, CAARMS anhedonia showed significant correlations with functioning deterioration, negative symptoms, and comorbid depression (including suicide ideation), while BOL anhedonia with a poorer self-perceived quality of life and specific schizotypal personality traits (i.e. interpersonal deficits and disorganization). Anhedonia is prominent in the psychosis risk syndrome and its severity is indistinguishable from that of FEP patients.
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