Memory deficits associated with chronic fatigue immune dysfunction syndrome.
Fatigue Syndrome, Chronic
Immune System Diseases
Psychiatric Status Rating Scales
CHRONIC FATIGUE SYNDROME
EPSTEIN BARR VIRUS
Psychology and Cognitive Sciences
Medical and Health Sciences
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AbstractPerformance on tests of memory in 39 patients who met Center for Disease Control (CDC) criteria for chronic fatigue immune dysfunction syndrome (CFIDS) was compared with 23 depressed patients (DSM-III-R) and 129 healthy controls. Although the CFIDS patients had normal neuropsychological profiles, they significantly overestimated their ability (metamemory), performed significantly worse on tests of recall as context increased (e.g., recognition), made more errors when rehearsal was prevented, and had delayed mental scanning as memory load increased. The overall pattern indicated that CFIDS patients had a significant memory deficit, far worse than implied by CDC criteria. The pattern for CFIDS patients was consistent with temporal-limbic dysfunction and significantly different than depressed patients and control subjects.