Contrasting Metacognitive, Emotion Recognition and Alexithymia Profiles in Bulimia, Anorexia, and Schizophrenia.

Abstract

Alexithymia, or deficits in emotion recognition, and metacognitive capacity have been noted both in psychosis and eating disorders and potentially linked to psychopathology. This study sought to compare levels of impairments in these phenomena and their associations with psychopathology in groups with eating disorders and psychosis. Participants with diagnoses of a schizophrenia spectrum disorder (SSD; n = 53), anorexia (n = 40), or bulimia (n = 40) were recruited from outpatient clinics. Alexithymia was measured with the Toronto Alexithymia Scale; emotion recognition, with the Ekman Faces Test; and metacognition, with the Metacognitive Assessment Scale-Abbreviated. Psychopathology was measured with the Eating Attitudes Test, Body Image Questionnaire, and Positive and Negative Syndrome Scale. Results indicated that the SSD group had significantly poorer metacognitive function than either eating disorder group. Metacognition was related to body image in the anorexia group and a range of different forms of general psychopathology in the bulimia group. Alexithymia was related to eating disorder behaviors in the bulimia group.