Effect of Ambient Bright Light on Behavioral and Psychological Symptoms in People With Dementia: A Systematic Review.
Alzheimer’s disease
Ambient light, Behavior
BPSD, Dementia
Journal
Innovation in aging
ISSN: 2399-5300
Titre abrégé: Innov Aging
Pays: England
ID NLM: 101703706
Informations de publication
Date de publication:
2022
2022
Historique:
received:
28
10
2021
entrez:
23
5
2022
pubmed:
24
5
2022
medline:
24
5
2022
Statut:
epublish
Résumé
Behavioral and psychological symptoms of dementia (BPSD) commonly occur in persons living with dementia. Bright light (BL) interventions have shown some positive impact on BPSD. Ambient lighting is a more efficient approach to delivering BL with better compliance and less staff workload than individual-based lighting interventions. Yet, its effect has not been systematically reviewed. This review synthesized research evidence on the effect of ambient BL on BPSD. This review searched literature from PubMed (Medline), CINAHL, Scopus, Web of Science, and Cochrane in February 2021. Original research testing the effect of ambient BL on BPSD in persons with dementia was included. Two reviewers independently screened, extracted data, and assessed the quality of each article. Nine studies were reviewed with 1 randomized controlled trial and 8 quasi-experimental studies. The sample size ranged from 14 to 89 participants across care settings. While not all studies showed positive results, evidence from multiple studies revealed the positive effect of ambient BL on depressive symptoms and agitation in persons with dementia. The ambient BL that showed a positive effect targeted at approximately 350-750 lux, 4,500-9,325 K, and/or circadian stimulus = 0.375-0.4 for 10-12 hr a day for 4 weeks or longer. Evidence on other BPSD was mixed or too limited to draw conclusions. A preponderance of evidence suggests that, when properly designed and implemented, ambient BL shows promise in reducing depressive symptoms and agitation. Future research, using more rigorous designs, is needed to further test the effect of ambient BL on BPSD with attention to lighting parameters, measurement approaches, and intervention fidelity.
Sections du résumé
Background and Objectives
UNASSIGNED
Behavioral and psychological symptoms of dementia (BPSD) commonly occur in persons living with dementia. Bright light (BL) interventions have shown some positive impact on BPSD. Ambient lighting is a more efficient approach to delivering BL with better compliance and less staff workload than individual-based lighting interventions. Yet, its effect has not been systematically reviewed. This review synthesized research evidence on the effect of ambient BL on BPSD.
Research Design and Methods
UNASSIGNED
This review searched literature from PubMed (Medline), CINAHL, Scopus, Web of Science, and Cochrane in February 2021. Original research testing the effect of ambient BL on BPSD in persons with dementia was included. Two reviewers independently screened, extracted data, and assessed the quality of each article.
Results
UNASSIGNED
Nine studies were reviewed with 1 randomized controlled trial and 8 quasi-experimental studies. The sample size ranged from 14 to 89 participants across care settings. While not all studies showed positive results, evidence from multiple studies revealed the positive effect of ambient BL on depressive symptoms and agitation in persons with dementia. The ambient BL that showed a positive effect targeted at approximately 350-750 lux, 4,500-9,325 K, and/or circadian stimulus = 0.375-0.4 for 10-12 hr a day for 4 weeks or longer. Evidence on other BPSD was mixed or too limited to draw conclusions.
Discussion and Implications
UNASSIGNED
A preponderance of evidence suggests that, when properly designed and implemented, ambient BL shows promise in reducing depressive symptoms and agitation. Future research, using more rigorous designs, is needed to further test the effect of ambient BL on BPSD with attention to lighting parameters, measurement approaches, and intervention fidelity.
Identifiants
pubmed: 35602310
doi: 10.1093/geroni/igac018
pii: igac018
pmc: PMC9116897
doi:
Types de publication
Journal Article
Review
Langues
eng
Pagination
igac018Informations de copyright
© The Author(s) 2022. Published by Oxford University Press on behalf of The Gerontological Society of America.
Références
J Alzheimers Dis Rep. 2020 Aug 04;4(1):297-312
pubmed: 33024938
PLoS Med. 2009 Jul 21;6(7):e1000097
pubmed: 19621072
Clin Interv Aging. 2021 May 24;16:909-937
pubmed: 34079240
J Am Geriatr Soc. 2004 Oct;52(10):1610-7
pubmed: 15450035
J Alzheimers Dis. 2013;33(4):913-22
pubmed: 23099814
Geriatr Psychol Neuropsychiatr Vieil. 2019 Mar 1;17(1):83-91
pubmed: 30907372
Sleep Health. 2015 Dec 1;1(4):322-330
pubmed: 27066526
J Clin Sleep Med. 2019 Dec 15;15(12):1757-1767
pubmed: 31855161
Environ Health Perspect. 2010 Jan;118(1):A22-7
pubmed: 20061218
Clocks Sleep. 2019 Jul 1;1(3):280-289
pubmed: 31281903
Curr Alzheimer Res. 2017;14(10):1063-1075
pubmed: 28545364
Neurodegener Dis Manag. 2017 Apr;7(2):119-145
pubmed: 28534696
Dement Geriatr Cogn Disord. 2018;46(5-6):371-384
pubmed: 30537760
Curr Alzheimer Res. 2017;14(10):1076-1083
pubmed: 28595522
Psychiatry Clin Neurosci. 2014 Nov;68(11):777-84
pubmed: 24735203
Clin Interv Aging. 2014 Sep 12;9:1527-37
pubmed: 25246779
Int J Geriatr Psychiatry. 2010 Oct;25(10):1013-21
pubmed: 20104513
J Am Geriatr Soc. 2007 Nov;55(11):1817-24
pubmed: 17944896
Geriatr Nurs. 2003 Jul-Aug;24(4):239-43
pubmed: 14560298
J Gerontol. 1989 May;44(3):M77-84
pubmed: 2715584
J Biophotonics. 2019 Dec;12(12):e201900102
pubmed: 31433569
BMJ. 2011 Oct 18;343:d5928
pubmed: 22008217
Clin Interv Aging. 2018 May 30;13:1071-1077
pubmed: 29881263
Curr Treat Options Neurol. 2019 Jun 24;21(7):30
pubmed: 31231784