Theory of Mind in Somatization and Depression: Is It Cause or Phenomenon?

ABSTRACT: Although mentalization is important in somatic symptom disorder (SSD) and major depressive disorder (MDD), it is not fully understood. In this study, we aimed to investigate the relation between somatic and depressive symptoms with mentalization. A total of 48 patients diagnosed with SSD, 50 patients diagnosed with MDD, and 50 healthy individuals, participated the study. The Montgomery-Asperg Depression Scale, Symptom Checklist-90 Revised, and Reading the Mind in the Eyes Test (RMET) were applied to the participants. The patients with SSD showed significantly the lowest performance of theory of mind. There was no significant difference between MDD and healthy controls. High somatization score was found to be a predictor for low RMET scores (95% confidence interval, -0.339; p = 0.014). Mentalization deficit seems to be associated with somatization rather than depression.

[Adaptation and Reliability of the Structured Clinical Interview for DSM-5-Disorders - Clinician Version (SCID-5/CV) to the Turkish Language]. / DSM-5 Bozukluklari için Yapilandirilmis Klinik Görüsmenin Klinisyen Versiyonunun Türkçeye Uyarlanmasi ve Güvenilirlik Çalismasi.

OBJECTIVE: In this study, we aimed to adapt the Structured Clinical Interview for DSM-5-ClinicianVersion into Turkish and to demonstrate its reliability.  METHOD: A total of 185 patients, both inpatient and outpatient, from two different university hospitals were included. Training sessions on the features and use of SCID-5/CV were held before the data collection. During the study, in order to test the diagnostic agreement and accuracy, two psychiatrists remained present at the evaluation of each participant; alternatively being interviewer and the observer. Cohen's kappa coefficient for inter-rater reliability was calculated for every diagnostic category.  RESULTS: The patient group had a mean age of 37.2 (±13.5) years and 55.7% were female. The education status was as follows: 2.7% were illiterate, 1.7% literate with no primary education, 33% had primary education, 23.8% had secondary education and 38.9% had higher education. The calculated kappa value showed excellent agreement for schizophrenia (κ=0.93), bipolar disorder (κ=0.96), major depressive disorder (κ=0.89), dysthymic disorder (κ=0.82), alcohol use disorder (κ=0.96), panic disorder (κ=0.84), agoraphobia (κ=0.85), social anxiety disorder (κ=0.95), generalized anxiety disorder (κ=0.89), obsessive compulsive disorder (κ=0.87), posttraumatic stress disorder (κ=0.89), adult attention deficit and hyperactivity disorder (κ=1.00), specific phobias (κ=0.82) and very good agreement with adjustment disorder (κ=0.78) and somatic symptom disorder (κ=0.65).  CONCLUSION: Similar to the past SCID versions, kappa values were found to be quite high and all were statistically significant. The Turkish version of SCID-5/ CV can be reliably used in both clinical practice and clinical studies.