title: Did a brief nap break have positive benefits on information processing among nurses working on the first 8-h night shift?
abstract: Shift workers frequently experience acute sleep deprivation on first night shift. This study compared the efficacy of 30-min nap (between 2 and 3 a.m.) on the visual attention ability of the nurses working at first 8-h night shift at the time of maximum fatigue (between 3 and 4 a.m.). In addition, we measured cognitive function (between 9 and 10 a.m.) in nurses working on daytime shift, which we defined as baseline wakefulness. The results showed that working on the night shift groups was associated with sleep loss, leading to a decrease in visual attention performance compared to the daytime shift group. There was no statistically significant difference in the visual attention performance between those taking and not taking a nap during the night shift, however the effect size was medium in the information process. It was still needed increase sample size to draw the conclusion regarding a 30-min nap break have positive benefits on perceptual speed during the first night shift.
authors: Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, No. 100, Tzyou 1st Road, Kaohsiung 807, Taiwan, ROC; Faculty of Nursing Department, Meiho University, No. 23, Pingguang Road, Neipu, Pingtung, Taiwan, ROC; Kaohsiung Municipal Kai-Syuan Psychiatric Hospital, No. 130, Kai-Syuan Second Road, Ling-Ya District, Kaohsiung 802, Taiwan, ROC.
authors: Yu-San
authors: YS
authors: Chang
authors: Kaohsiung Municipal Kai-Syuan Psychiatric Hospital, No. 130, Kai-Syuan Second Road, Ling-Ya District, Kaohsiung 802, Taiwan, ROC.
authors: Yu-Hsuan
authors: YH
authors: Wu
authors: Kaohsiung Municipal Kai-Syuan Psychiatric Hospital, No. 130, Kai-Syuan Second Road, Ling-Ya District, Kaohsiung 802, Taiwan, ROC.
authors: Mei Rou
authors: MR
authors: Lu
authors: Department of Neurology, Kaohsiung Medical University Hospital, No. 100, Tzyou 1st Road, Kaohsiung 807, Taiwan, ROC.
authors: Chung-Yao
authors: CY
authors: Hsu
authors: Kaohsiung Medical University Hospital, No. 100, Tzyou 1st Road, Kaohsiung 807, Taiwan, ROC. Electronic address: yusanc@kcg.gov.tw.
authors: Ching-Kuan
authors: CK
authors: Liu
authors: Department of Physiology, Kaohsiung Medical University, No. 100, Tzyou 1st Road, Kaohsiung 807, Taiwan, ROC.
authors: Chin
authors: C
authors: Hsu
mesh_terms: D000328:Adult; D001288:Attention; D003071:Cognition; D006801:Humans; D009741:Nursing Staff, Hospital / Q000523:psychology*; D011581:Psychological Tests; D012890:Sleep; D012892:Sleep Deprivation / Q000523:psychology; D013997:Time Factors; D014851:Wakefulness; D014940:Work Schedule Tolerance / Q000523:psychology
keywords: Cognitive function; Nap; Night shift