Pilot experimental study; Effect of environmental stimulation consisting of sound with high-frequency components, aromas, and light exposure from organic light-emitting diodes (OLEDs) toward rest-activity rhythm in institutionalized patients with dementia
- 1 April 2022
- journal article
- Published by Peertechz Publications Private Limited in Annals of Alzheimer's and Dementia Care
- Vol. 6 (1), 019-025
- https://doi.org/10.17352/aadc.000024
Abstract
Environmental stimulation is expected to have a positive impact on night sleep, psychological or functional states in dementia. The objective of this pilot study was to examine the effects of environmental stimulation consisting of sounds with high-frequency components, aromas, and light exposure from organic light-emitting diodes (OLEDs) to create comfortable living spaces for persons with dementia. Subjects (n =6) were recruited from elderly persons admitted to a single nursing home in Akita Prefecture, Japan, between August and September 2020. The night-time sleep state, the rest-activity rhythm, and the light exposure of the subjects living in environments with or without environmental stimulation consisting of sounds with high-frequency components, aromas, and light exposure from OLEDs were measured for 46.3 consecutive days using wrist activate devices under free-living conditions in a nursing home. In a period of environmental stimulation depending on the presence or absence of sounds with high-frequency components, reduction of the fragmented rest-activity rhythms was significantly observed in the subjects (p < 0.05). However, changes in the night-time sleep state had no significant difference during the study period. In conclusion, these preliminary results suggest that future examinations are warranted not only to inform effective or comfortable living conditions for elderly persons with dementia but also to improve the disruption of rest-activity rhythms in persons with dementia.Keywords
This publication has 16 references indexed in Scilit:
- Light therapy for improving cognition, activities of daily living, sleep, challenging behaviour, and psychiatric disturbances in dementiaEmergencias, 2014
- Do Sound Levels and Space Contribute to Agitation in Nursing Home Residents with Dementia?Research in Gerontological Nursing, 2012
- ETHICS AND METHODS FOR BIOLOGICAL RHYTHM RESEARCH ON ANIMALS AND HUMAN BEINGSChronobiology International, 2010
- Lavender aroma therapy for behavioral and psychological symptoms in dementia patientsGeriatrics & Gerontology International, 2008
- Circadian activity rhythm in demented and non‐demented nursing‐home residents measured by telemetric actigraphyJournal of Sleep Research, 2005
- Aromatherapy as a Safe and Effective Treatment for the Management of Agitation in Severe DementiaBritish Journal of Psychology, 2002
- Illumination levels in nursing home patients: effects on sleep and activity rhythmsJournal of Sleep Research, 2000
- Dose-response relationships for resetting of human circadian clock by lightNature, 1996
- Alterations in the circadian rest-activity rhythm in aging and Alzheimer's diseaseBiological Psychiatry, 1990
- A New Clinical Scale for the Staging of DementiaThe British Journal of Psychiatry, 1982