Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Poorer sustained attention in bipolar I than bipolar II disorder. | Kung et al. Annals of General Psychiatry 2010 9 8 http content 9 1 8 ANNALS OF GENERAL PSYCHIATRY PRIMARY RESEARCH Open Access Poorer sustained attention in bipolar I than bipolar II disorder Chian-Huei Kung1 Sheng-Yu Lee2 3 Yun-Hsuan Chang2 4 Jo Yung-Wei Wu4 Shiou-Lan Chen1 2 3 Shih-Heng Chen1 2 3 Chun-Hsien Chu1 2 3 I-Hui Lee2 3 Tzung-Lieh Yeh2 3 Yen-Kuang Yang2 3 Ru-Band Lu1 2 3 4 Abstract Background Nearly all information processing during cognitive processing takes place during periods of sustained attention. Sustained attention deficit is among the most commonly reported impairments in bipolar disorder BP . The majority of previous studies have only focused on bipolar I disorder BP I owing to underdiagnosis or misdiagnosis of bipolar II disorder BP II . With the refinement of the bipolar spectrum paradigm the goal of this study was to compare the sustained attention of interepisode patients with BP I to those with BP II. Methods In all 51 interepisode BP patients 22 with BP I and 29 with BP II and 20 healthy controls participated in this study. The severity of psychiatric symptoms was assessed by the 17-item Hamilton Depression Rating Scale and the Young Mania Rating Scale. All participants undertook Conners Continuous Performance Test II CPT-II to evaluate sustained attention. Results After controlling for the severity of symptoms age and years of education BP I patients had a significantly longer reaction times F 2 68 P worse detectability d values F 2 68 P and more commission errors F 2 68 P than BP II patients and healthy controls. BP II patients and controls scored significantly higher than BP I patients for d F P . No significant difference was found among the three groups in omission errors and no significant correlations were observed between CPT-II performance and clinical characteristics in the three groups. Conclusions These findings suggested that impairments in .