Does cognitive behavioural therapy for insomnia improve cognitive performance? A systematic review and narrative synthesis

Individuals with insomnia report difficulties pertaining to their cognitive functioning. Cognitive behavioural therapy for insomnia (CBT-I) is associated with robust, long-term improvements in sleep parameters, however less is known about the impact of CBT-I on the daytime correlates of the disorder...

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Main Authors: Herbert, V, Kyle, S, Pratt, D
Format: Journal article
Published: Elsevier 2017
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author Herbert, V
Kyle, S
Pratt, D
author_facet Herbert, V
Kyle, S
Pratt, D
author_sort Herbert, V
collection OXFORD
description Individuals with insomnia report difficulties pertaining to their cognitive functioning. Cognitive behavioural therapy for insomnia (CBT-I) is associated with robust, long-term improvements in sleep parameters, however less is known about the impact of CBT-I on the daytime correlates of the disorder. A systematic review and narrative synthesis was conducted in order to summarise and evaluate the evidence regarding the impact of CBT-I on cognitive functioning. Reference databases were searched and studies were included if they assessed cognitive performance as an outcome of CBT-I, using either self-report questionnaires or cognitive tests. Eighteen studies met inclusion criteria, comprising 923 individuals with insomnia symptoms. The standardised mean difference was calculated at post-intervention and follow-up. We found preliminary evidence for small to moderate effects of CBT-I on subjective measures of cognitive functioning. Few of the effects were statistically significant, likely due to small sample sizes and limited statistical power. There is a lack of evidence with regards to the impact of CBT-I on objective cognitive performance, primarily due to the small number of studies that administered an objective measure (n=4). We conclude that adequately powered randomised controlled trials (RCT), utilising both subjective and objective measures of cognitive functioning are required.
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spelling oxford-uuid:661243f1-5fce-4a47-8ad0-7afa464cab7f2022-03-26T18:29:33ZDoes cognitive behavioural therapy for insomnia improve cognitive performance? A systematic review and narrative synthesisJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:661243f1-5fce-4a47-8ad0-7afa464cab7fSymplectic Elements at OxfordElsevier2017Herbert, VKyle, SPratt, DIndividuals with insomnia report difficulties pertaining to their cognitive functioning. Cognitive behavioural therapy for insomnia (CBT-I) is associated with robust, long-term improvements in sleep parameters, however less is known about the impact of CBT-I on the daytime correlates of the disorder. A systematic review and narrative synthesis was conducted in order to summarise and evaluate the evidence regarding the impact of CBT-I on cognitive functioning. Reference databases were searched and studies were included if they assessed cognitive performance as an outcome of CBT-I, using either self-report questionnaires or cognitive tests. Eighteen studies met inclusion criteria, comprising 923 individuals with insomnia symptoms. The standardised mean difference was calculated at post-intervention and follow-up. We found preliminary evidence for small to moderate effects of CBT-I on subjective measures of cognitive functioning. Few of the effects were statistically significant, likely due to small sample sizes and limited statistical power. There is a lack of evidence with regards to the impact of CBT-I on objective cognitive performance, primarily due to the small number of studies that administered an objective measure (n=4). We conclude that adequately powered randomised controlled trials (RCT), utilising both subjective and objective measures of cognitive functioning are required.
spellingShingle Herbert, V
Kyle, S
Pratt, D
Does cognitive behavioural therapy for insomnia improve cognitive performance? A systematic review and narrative synthesis
title Does cognitive behavioural therapy for insomnia improve cognitive performance? A systematic review and narrative synthesis
title_full Does cognitive behavioural therapy for insomnia improve cognitive performance? A systematic review and narrative synthesis
title_fullStr Does cognitive behavioural therapy for insomnia improve cognitive performance? A systematic review and narrative synthesis
title_full_unstemmed Does cognitive behavioural therapy for insomnia improve cognitive performance? A systematic review and narrative synthesis
title_short Does cognitive behavioural therapy for insomnia improve cognitive performance? A systematic review and narrative synthesis
title_sort does cognitive behavioural therapy for insomnia improve cognitive performance a systematic review and narrative synthesis
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