Background: The aim of our research was to examine the cognitive and intellectual functioning of a patient with anorexia nervosa, and to verify the persistence of cognitive functioning deficiencies five years after the regression of somatic symptoms of the disease. Material/Methods: A 33-year-old patient with anorexia was examined. The following methods were used: the Wechsler Adult Intelligence Scale-Revised (WAIS-R[ PL]); the Raven Matrices Test, stan dard version, classic form (TMS-K); the Coping in Stress ful Situations Questionnaire (CISS); the Life Satisfaction Scale (SWLS); the DINEMO Emotional Intelligence Inventory; the SIE-T Emotional Intelligence Scale - dFaces; the INTE Emo tional Intelligence Questionnaire; the modified Figure Rating Scale; the Minnesota Multiphasic Personality Inventory (MMPI-2); and the patient's own pictures of herself 10 years ago, ill, and now, and of the family's living space. Results: The patient obtained divergent results in the intelligence tests: the WAIS-R (PL) was below average, but the Raven Matrices Test was average. The EQ, regardless of the ap plied method, was rated very low. Intellectual and cognitive functioning determines the functioning in the intrapersonal, interpersonal and praxeological spheres. Conclusions: Eating disorders affected this patient's intellectual and cognitive functioning permanently. Cognitive changes in perception, memory, attention, and intelligence were observed, as well as emotions and motivation.
