Electrophysiological and cognitive function in young euthymic patients with bipolar affective disorder

Objectives: EEG abnormalities and neurocognitive deficits have been reported in patients with bipolar affective disorder. The aim of this study was to ascertain whether brain function remains impaired in young bipolar patients who have become euthymic in response to treatment. Methods: Brain function was assessed by quantitative electroencephalographic (EEG) power‐spectral mapping and by a battery of neuropsychological tests. The subjects were 29 euthymic bipolar patients aged 18–40 years and 26 healthy volunteers of similar age, IQ and socioeconomic status. Results: Grand means of spectral power of the resting EEG showed significantly (from p