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doi: 10.1111/j.1365-2869.2008.00671.x Sleep loss affects vigilance: effects of chronic insomnia and sleep (2008)
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@MISC{08doi:10.1111/j.1365-2869.2008.00671.x,
author = {},
title = {doi: 10.1111/j.1365-2869.2008.00671.x Sleep loss affects vigilance: effects of chronic insomnia and sleep},
year = {2008}
}
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Abstract
SUMMARY Although complaints of impaired daytime functioning are essential to the diagnosis of primary insomnia, objective evidence for cognitive dysfunction has been hard to establish. A prerequisite for understanding the neurocognitive consequences of primary insomnia is to establish task paradigms that robustly differentiate insomniacs from well-sleeping subjects. We hypothesized that the decline in performance that typically occurs with an increasing cognitive demand would provide a more sensitive measure than performance on a single task version. The hypothesis was tested, first, by assessing the performance on two vigilance tasks with different cognitive demands in 25 elderly patients with primary insomnia and 13 healthy well-sleeping age-matched subjects. Secondly, we investigated the performance response to sleep therapy using a waiting-list controlled design. Sleep therapy consisted of a multi-component intervention including sleep restriction, cognitive behavioral therapy, bright-light therapy, structured physical activity and body temperature manipulations. The results show that insomniacs differed markedly from controls in their reaction times across tasks with different cognitive demands: patients responded faster on the simple vigilance task, yet slower on the
Keyphrases
sleep loss affect vigilance primary insomnia chronic insomnia different cognitive demand task paradigm cognitive behavioral therapy performance response impaired daytime functioning reaction time vigilance task simple vigilance task sleep restriction well-sleeping subject objective evidence healthy well-sleeping age-matched subject sensitive measure cognitive dysfunction waiting-list controlled design cognitive demand multi-component intervention elderly patient physical activity sleep therapy neurocognitive consequence body temperature manipulation bright-light therapy single task version
