Introduction: Psychopathology may cause changes in particular personality traits. The aim of this study was to investigate the
association between personality traits and automatic thoughts in patients with generalised anxiety disorder (GAD) and major depressive
disorder (MDD) and to compare these personality traits.
Method: Sixty-three volunteer outpatients with GAD and 64 volunteer outpatients with MDD from the Bozok University School
of Medicine and Yozgat Public Hospital psychiatry outpatient clinics participated. Participants were given Eysenck’s Personality
Questionnaire-Revised Short Form (EPQ-RSF) and the Negative Automatic Thoughts Scale (NATQ). The EPQ-RSF and NATQ were
also administered to a comparison group of 62 healthy volunteers (CG). Additionally, patients with GAD were given the Generalised
Anxiety Disorder-7 scale (GAD-7), and patients with MDD were given the Beck Depression Inventory (BDI).
Results: The NATQ scores of patients with GAD (75.69 ± 8.22) and MDD (91.78 ± 28.049) were higher than those in the comparison
group (47.89 ± 11.98). The neuroticism subscale (EPQ-N) scores on the EPQ-RSF were also higher than those of the comparison
group (3.06 ± 1.68) in patients with GAD (5.06 ± 1.31) and MDD (5.23 ± 0.88). A strong positive relationship was observed
among the GAD-7, BDI, and NATQ scores and the NATQ and EPQ-N scores in a correlation analysis.
Conclusion: Negative automatic thoughts and neuroticism were high in patients with GAD and MDD. An association was
found between automatic thoughts and neuroticism. Thus, these findings show psychopathology-induced changes in personality
Key words: Anxiety, Depression, Personality, Automatic Thoughts, Neuroticism.