Effect of Light Treatment on Sleep and Circadian Rhythms in Demented Nursing Home Patients

Ancoli‐Israel, Sonia; Martin, Jennifer L.; Kripke, Daniel F.; Marler, Matthew; Klauber, Melville R.

doi:10.1046/j.1532-5415.2002.50060.x

Cited by 265 publications

(276 citation statements)

References 51 publications

(60 reference statements)

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“…The old age, severity of dementia, and large inter-individual differences in our sample may also explain, in part, the lack of treatment effects. It is possible that subjects respond to light differently across the lifespan and range of cognitive impairment (Yamadera et al, 2000;Ancoli-Israel et al, 2002). Since 96% of our sample scored in the moderate or severe range of MMSE scores, subjects may have had only a weak sensitivity to the light exposure as suggested by Yamadera et al (2000).…”

Section: Discussionmentioning

confidence: 99%

“…Other investigators have used similar methods to define day and night intervals (e.g. Ancoli-Israel et al, 2002) and these methods correlate well with actual nurse recorded time in bed. For example, Fetveit and colleagues (2003) reported actual time in bed to be approximately 12 hours in a study of 11 patients with dementia who participated in a light study.…”

Section: Discussionmentioning

confidence: 99%

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Effect of timed bright light treatment for rest-activity disruption in institutionalized patients with Alzheimer's disease

Dowling

Mastick

Hubbard

et al. 2005

Int. J. Geriat. Psychiatry

101

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effect of timed bright light treatment for rest-activity disruption in institutionalized patients with Alzheimer's disease

Dowling

Mastick

Hubbard

et al. 2005

Int. J. Geriat. Psychiatry

101

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“…However, these studies have focused primarily on dementia sufferers with greater effects observed when combined with melatonin [38]. By contrast, some studies have seen little effect of light therapy on sleep of demented care home residents [39][40][41][42]. Bright light has also been shown to improve the sleep and cognitive performance of older people living in the community not suffering from dementia [43].…”

Section: Introductionmentioning

confidence: 99%

Blue-Enriched Lighting for Older People Living in Care Homes: Effect on Activity, Actigraphic Sleep, Mood and Alertness

Hopkins

Morgan

Schlangen

et al. 2017

CAR

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Environmental (little outdoor light; low indoor lighting) and age-related physiological factors (reduced light transmission through the ocular lens, reduced mobility) contribute to a light-deprived environment for older people living in care homes. This study investigates the effect of increasing indoor light levels with blueenriched white lighting on objective (rest-activity rhythms, performance) and self-reported (mood, sleep, alertness) measures in older people. Eighty residents (69 female), aged 86 ± 8 yrs (mean ± SD), participated (MMSE 19 ± 6). Overhead fluorescent lighting was installed in communal rooms (n=20) of seven care homes.Four weeks of blue-enriched white lighting (17000 K  900 lux) were compared with four weeks of control white lighting (4000 K  200 lux), separated by three weeks wash-out. Participants completed validated mood and sleep questionnaires, psychomotor vigilance task (PVT) and wore activity and light monitors (AWL). Restactivity rhythms were assessed by cosinor, non-parametric circadian rhythm (NPCRA) and actigraphic sleep analysis. Blue-enriched (17000 K) light increased wake time and activity during sleep decreasing actual sleep time, sleep percentage and sleep efficiency (p < 0.05) (actigraphic sleep). Compared to 4000 K lighting, blueenriched 17000 K lighting significantly (p < 0.05) advanced the timing of participants' rest-activity rhythm (cosinor), increased daytime and night-time activity (NPCRA), reduced subjective anxiety (HADA) and sleep quality (PSQI). There was no difference between the two light conditions in daytime alertness and performance (PVT). Blue-enriched lighting produced some positive (increased daytime activity, reduced anxiety) and negative (increased night-time activity, reduced sleep efficiency and quality) effects in older people.Keywords: care home, light therapy; mood; elderly; rest-activity; sleep. 3 Graphical AbstractThe effect of blue-enriched 17000 K lighting (right) on the rest-activity, sleep and mood of older people living in care homes has been investigated compared to control 4000 K lighting (middle) (left, original lighting) 4

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“…In randomizedcontrolled trials, long-term care residents exposed to bright light showed improved sleep relative to participants who received placebo interventions. 21,22,35,36 Researchers have also examined the effectiveness of supplemental melatonin (a hormone, typically secreted at night, that is closely linked to sleep), but results are mixed. Several aspects of the use of melatonin to improve sleep in long-term care residents, specifically, administration timing, dose, and preparation (acute vs. sustained release) are not clear.…”

Section: Non-pharmacological Treatment Of Sleep Problemsmentioning

confidence: 99%

Sleep Disturbances in Long-Term Care

Martin¹,

Ancoli‐Israel²

2008

Clinics in Geriatric Medicine

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SYNOPSISNighttime sleep disruption is characteristic of long-term care residents, is typically accompanied by daytime sleepiness and may be caused by a multitude of factors. Causal factors include medical and psychiatric illness, medications, circadian rhythm abnormalities, sleep disordered breathing and other primary sleep disorders, environmental factors and lifestyle habits. There is some suggestion that these factors are amenable to treatment; however, further research on the implementation of treatments within the long-term care setting is needed. Additional work is also needed to understand the administrative and policy factors that might lead to systemic changes in how sleep is viewed and sleep problems are addressed in long-term care settings.A growing number of older adults reside in long-term care facilities. In this setting, residents commonly suffer from nighttime sleep disruption, which is often accompanied by daytime sleepiness and may be caused by a multitude of factors. Importantly, sleep disturbance is associated with negative health outcomes, including risk for falling, and elevated mortality risk among long-term care residents. A number of factors contribute to sleep disturbance in the long-term care setting including medical and psychiatric illness, medications, circadian rhythm abnormalities, sleep disordered breathing and other primary sleep disorders, environmental conditions (e.g., noise and light) and lifestyle habits. Based on research with older adults in the community and work conducted within long-term care settings, there is some suggestion that these factors are amenable to nonpharmacological treatments. Further research on the broad implementation of treatments for sleep problems within the long-term care setting is still needed. Additional work is also needed to understand the administrative and policy factors that might lead to systemic changes in how sleep is viewed and sleep problems are addressed in long-term care settings.

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Effect of Light Treatment on Sleep and Circadian Rhythms in Demented Nursing Home Patients

Cited by 265 publications

References 51 publications

Effect of timed bright light treatment for rest-activity disruption in institutionalized patients with Alzheimer's disease

Effect of timed bright light treatment for rest-activity disruption in institutionalized patients with Alzheimer's disease

Blue-Enriched Lighting for Older People Living in Care Homes: Effect on Activity, Actigraphic Sleep, Mood and Alertness

Sleep Disturbances in Long-Term Care

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