B - 14 NEO Personality Inventory-Revised (NEO-PI-R) Domains Compared across BSNIP-2 Biotypes for Psychosis Spectrum Disorders.

This article focuses on comparing personality traits across biological and neuropsychological subgroups ("biotypes") of psychosis spectrum disorders using the NEO Personality Inventory-Revised (NEO-PI-R), which assesses the Big Five traits: Neuroticism, Extroversion, Openness, Conscientiousness, and Agreeableness. The study involved 1,086 individuals with psychosis spectrum disorders classified by biotype rather than DSM diagnosis. Results showed that healthy controls exhibited higher Extroversion, Agreeableness, and Conscientiousness, and lower Neuroticism compared to all biotypes collectively, while Biotype 3 demonstrated greater Openness than Biotypes 1, 2, and healthy controls. The findings suggest that Biotype 3's increased Openness may relate to enhanced executive functioning and cognitive flexibility despite the presence of internalizing symptoms common to all biotypes.