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Effects of cumulative sleep restriction on self‐perceptions while multitasking
Author(s) -
Sallinen Mikael,
Onninen Jussi,
Tirkkonen Katriina,
Haavisto MarjaLeena,
Härmä Mikko,
Kubo Tomohide,
Mutanen Pertti,
Virkkala Jussi,
Tolvanen Asko,
PorkkaHeiskanen Tarja
Publication year - 2013
Publication title -
journal of sleep research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.297
H-Index - 117
eISSN - 1365-2869
pISSN - 0962-1105
DOI - 10.1111/jsr.12013
Subject(s) - sleep restriction , sleep (system call) , human multitasking , psychology , sleep deprivation , task (project management) , perception , audiology , developmental psychology , clinical psychology , medicine , cognition , cognitive psychology , psychiatry , computer science , management , neuroscience , economics , operating system
Summary This study addressed a rarely studied question of self‐perceptions of performance and overall functional state during cumulative sleep restriction and the ensuing recovery period. Twenty healthy male volunteers, aged 19–29 years, were divided into a sleep restriction group ( n = 13) and a control group ( n = 7). On the first 2 nights, the sleep restriction group had an 8‐h sleep opportunity that was restricted to 4 h for the next 5 nights, and then restored to 8 h for the last 2 nights. The control group had an 8‐h sleep opportunity each night. Each day participants accomplished 50‐min multitask sessions and gave self‐ratings in their connection. Similar to our previous findings on multitasking performance, self‐perceived task performance, sleepiness and mental fatigue impaired during the sleep restriction and returned to baseline during the recovery phase. Self‐perceived mental effort, tension, task difficulty and task pace showed no sensitivity to the sleep restriction. We concluded that sleep‐restricted individuals can probably make use of some self‐perceptions when assessing their ‘fitness for duty’. However, at the individual level these measures seem to be inaccurate in revealing actual performance impairments.