Dementia, Alzheimer's disease, Frontotemporal dementia, Vascular dementia, Lewy-body dementia, bright light, biodynamic light, circadian rhytm, cognition, mood, quality of life
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: - Patiënts with a clear diagnosis of dementia according to the ICD-10 and/or DSM criteria - Patiënts with dementia staying in a long-term care nursing home 'Atlant Zorggroep' in Apeldoorn - The Netherlands
Exclusion criteria
Exclusion criteria: - Patiënts without a clear diagnosis of dementia according to the ICD-10 and/or DSM criteria - Patiënts who are terminally ill (life expectation < 4 weeks according to physican) - Patiënts and legal representatives who refused to complete the informed consent form. - Patiënts with a serious eye disease incompatible with light therapy, such as aphakia or retinitis pigmentosa.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| - Cognition (SIB-II, MMSE) - Quality of life (QUALIDEM) - Depression (MADRS) - Apathy (NPI-NH Apathy scale) - Agitation (CMAI) - Rest-activity Rythm (actigraphy) - Activities of Daily Life (Katz-ADL) | — |
Secondary
| Measure | Time frame |
|---|---|
| - Dementia Severity (GDS) - Year diagnosis dementia - Dementia Types - Age - Gender - Education Level (according to verhage criteria) - Medical comorbidities in the last 6 months - Medication use in the last 6 months - Presence/absence of walking function - falls incidence (number of falls a month before and during the study). - Lux measurement: Before, after and during the intervention the light intensity will be measured by the supplier. During the intervention the light intensity will be independently measured by a luxmeter at the eye level in the gaze direction. The measurements take place two times in the week at the same time (12 o'clock PM) - Light colour: Before, after and during the intervention the light colour (kelvin) will be measured by the supplier. | — |