RELATIONSHIP BETWEEN THE 5-FACTOR MODEL OF PERSONALITY AND UNIPOLAR, BIPOLAR AND SCHIZOPHRENIC-PATIENTS

The purpose of this study was to examine personality differences among three different Axis I disorders - recovered patients with unipolar d epression (n = 62), euthymic patients with bipolar disorder (n = 34), and patients with schizophrenia in the residual phase of their illness (n = 41) using the five-factor model of personality (FFM). The dimens ions of the FFM - Neuroticism (N), Extraversion (E), Openness (O), Agr eeableness (A), and Conscientiousness (C) - were measured with composi te scores derived from the NEO Personality Inventory (NEO PI) and the Revised NEO Personality Inventory (NEO PI-R). While no group differenc es emerged on N or C, the bipolar patients scored significantly higher on the Positive Emotion facet (subscale) of E than the unipolar patie nts. The schizophrenic patients scored lower on the Feelings, Values a nd Actions facets of O than did the unipolar and bipolar patients. The unipolar patients scored higher on A than the schizophrenic patients. (C) 1997 Elsevier Science Ireland Ltd.