The impact of sleep loss on sustained and transient attention: an EEG study

PeerJ

article

Lucienne Shenfield¹  Vanessa Beanland²  Ashleigh Filtness³  Deborah Apthorp⁵ 

[1] Research School of Psychology, Australian National University;Department of Psychology, University of Otago;School of Design and Creative Arts, Loughborough University;Queensland University of Technology ,(QUT), Centre for Accident Research and Road Safety – Queensland;School of Psychology, University of New England;Research School of Computer Science, Australian National University

关键词: Sleep;    EEG;    Attention;    Sustained attention;    Transient attention;    Sleep restriction;    Attentional blink;    PVT;    Alpha EEG;    Delta EEG;   

DOI  :  10.7717/peerj.8960

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

Sleep is one of our most important physiological functions that maintains physical and mental health. Two studies examined whether discrete areas of attention are equally affected by sleep loss. This was achieved using a repeated-measures within-subjects design, with two contrasting conditions: normal sleep and partial sleep restriction of 5-h. Study 1 compared performance on a sustained attention task (Psychomotor Vigilance task; PVT) with performance on a transient attention task (Attentional Blink; AB). PVT performance, but not performance on the AB task, was impaired after sleep restriction. Study 2 sought to determine the neural underpinnings of the phenomenon, using electroencephalogram (EEG) frequency analysis, which measured activity during the brief eyes-closed resting state before the tasks. AB performance was unaffected by sleep restriction, despite clearly observable changes in brain activity. EEG results showed a significant reduction in resting state alpha oscillations that was most prominent centrally in the right hemisphere. Changes in individual alpha and delta power were also found to be related to changes in subjective sleepiness and PVT performance. Results likely reflect different levels of impairment in specific forms of attention following sleep loss.

【 授权许可】

CC BY