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Fifty patients of depression and thirty normal subjects were assessed using clinical rating scales and also for the executive functions by Wisconsin Card Sorting Test (WCST). The depressed subjects demonstrated poor performance on WCST suggesting cognitive inflexibility and prefrontal dysfunction. More severe illness was associated with greater impairment in the executive functioning. This pattern of result in conjunction with previous studies supported the idea that depressed patients may have fixed frontally based dysfunction and calls for the use of cognitive assessment and rehabilitation in the patients with depression.