TY - JOUR
T1 - Insomnia and cognitive performance
T2 - A systematic review and meta-analysis
AU - Wardle-Pinkston, Sophie
AU - Slavish, Danica C.
AU - Taylor, Daniel J.
N1 - Funding Information:
We would like to thank Joshua Hook, Jennifer Callahan, and Jessica Dietch who provided guidance and editorial support for the manuscript. Research supported by NIH/NIAID [R01AI128359-01].
Funding Information:
We would like to thank Joshua Hook, Jennifer Callahan, and Jessica Dietch who provided guidance and editorial support for the manuscript. Research supported by NIH/NIAID [ R01AI128359-01 ].
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/12
Y1 - 2019/12
N2 - Cognitive performance has been extensively investigated in relation to insomnia, yet review of the literature reveals discrepant findings. The current study aimed to synthesize this literature with a systematic review and meta-analysis. 48 studies (k = 50 independent samples, n = 4539 total participants) met inclusion criteria. Omnibus meta-analysis revealed insomnia was associated with poorer overall cognitive performance (Hedge's g = −0.24, p < 0.001). Analyses by cognitive domain revealed insomnia was specifically associated with impairments in subjective cognitive performance (g = −0.35), and objective measures of perceptual function (g = −0.24), manipulation (g = −0.52) and retention/capacity in working memory (g = −0.30), complex attention (g = −0.36), alertness (g = −0.14), episodic memory (g = −0.29), and problem solving in executive functions (g = −0.39). Age, percent female, publication year, and insomnia measure did not consistently moderate findings. Approximately 44% of studies failed to use diagnostic criteria when categorizing insomnia and cognitive measures varied widely. This indicates a need for standardization of methods assessing insomnia and cognitive performance in research. Overall, findings from this meta-analysis indicate insomnia is associated with impairment in objective and subjective cognitive performance, highlighting the utility of treating insomnia to potentially improve cognitive outcomes.
AB - Cognitive performance has been extensively investigated in relation to insomnia, yet review of the literature reveals discrepant findings. The current study aimed to synthesize this literature with a systematic review and meta-analysis. 48 studies (k = 50 independent samples, n = 4539 total participants) met inclusion criteria. Omnibus meta-analysis revealed insomnia was associated with poorer overall cognitive performance (Hedge's g = −0.24, p < 0.001). Analyses by cognitive domain revealed insomnia was specifically associated with impairments in subjective cognitive performance (g = −0.35), and objective measures of perceptual function (g = −0.24), manipulation (g = −0.52) and retention/capacity in working memory (g = −0.30), complex attention (g = −0.36), alertness (g = −0.14), episodic memory (g = −0.29), and problem solving in executive functions (g = −0.39). Age, percent female, publication year, and insomnia measure did not consistently moderate findings. Approximately 44% of studies failed to use diagnostic criteria when categorizing insomnia and cognitive measures varied widely. This indicates a need for standardization of methods assessing insomnia and cognitive performance in research. Overall, findings from this meta-analysis indicate insomnia is associated with impairment in objective and subjective cognitive performance, highlighting the utility of treating insomnia to potentially improve cognitive outcomes.
KW - Cognitive performance
KW - Insomnia
KW - Meta-analysis
KW - Standardization
UR - http://www.scopus.com/inward/record.url?scp=85072013384&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85072013384&partnerID=8YFLogxK
U2 - 10.1016/j.smrv.2019.07.008
DO - 10.1016/j.smrv.2019.07.008
M3 - Review article
C2 - 31522135
AN - SCOPUS:85072013384
VL - 48
JO - Sleep Medicine Reviews
JF - Sleep Medicine Reviews
SN - 1087-0792
M1 - 101205
ER -