Working memory performance of older adults with insomnia Lovato, Nicole Lack, Leon Colburn Wright, Helen Ruth Cant, M Humphries, J 2013-08-26T04:52:35Z 2013-08-26T04:52:35Z 2012-11-21
dc.description This article appeared in a journal published by Wiley-Blackwell. Under Wiley's copyright, mandated authors are not permitted to make work available in an institutional repository. en
dc.description.abstract Older individuals suffering insomnia typically report declines in their cognitive performance beyond what they consider to be normal changes due to the aging process. Recent neuro-imaging studies have demonstrated frontal lobe hypo-activation among insomniac populations when compared with healthy, good sleepers. However, research is yet to confirm whether frontal lobe hypo-activation translates into objective declines when performing tasks hypothesized to draw upon this brain region. This study aimed to investigate whether older insomnia sufferers demonstrate significantly impaired performance on a challenging working memory task when compared with age-matched good sleepers. Forty-nine older individuals (mean age = 69.43 years, SD = 4.83) suffering from sleep maintenance insomnia were compared with 49 age-matched good sleepers. Cognitive performance was assessed using the Double Span Memory Task, a computer-based working memory task that requires participants to indicate the names and/or spatial locations of increasingly longer sequences of visually presented objects. After controlling for general intelligence, the individuals suffering from insomnia did not perform differently when compared with the good sleepers on either the simpler or more cognitively demanding components of the task. Older individuals with insomnia did not display an observable impairment of working memory in this study relative to good sleepers. Despite the mixed results from previous research, this study adds weight to the absence of objective impairment in insomniacs, at least while performing short-term demanding cognitive tasks. en
dc.description.sponsorship Australian National Health & Medical Research Council en
dc.identifier.citation Lovato, N., Lack, L., Wright, H., Cant, M. and Humphries, J., 2013. Working memory performance of older adults with insomnia. Journal of Sleep Research, 22, 251-257. en
dc.identifier.doi en
dc.identifier.issn 0962-1105
dc.language.iso en en_US
dc.publisher Wiley-Blackwell en_US
dc.relation.grantnumber NHMRC/480462
dc.rights Copyright 2012 European Sleep Research Society
dc.rights.holder Wiley-Blackwell
dc.subject Insomnia
dc.subject Aged
dc.subject Memory
dc.title Working memory performance of older adults with insomnia en_US
dc.type Article en