Sleep patterns in Parkinson's disease patients with visual hallucinations
Jim Barnes1, Vince Connelly, Luci Wiggs
1Department of Psychology, Oxford Brookes University, Oxford, United Kingdom. jim.barnes@brookes.ac.uk
The International Journal of Neuroscience
|July 10, 2010
Summary
Visual hallucinations (VHs) in Parkinson's disease (PD) are linked to poor sleep. Hallucinating PD patients experienced less sleep and more daytime sleepiness than non-hallucinating patients.
Area of Science:
- Neurology
- Sleep Medicine
Background:
- Visual hallucinations (VHs) affect 33% of Parkinson's disease (PD) patients on long-term treatment.
- Sleep disturbances are an emerging risk factor for VHs in PD.
Purpose of the Study:
- To compare sleep patterns in PD patients with VHs, PD patients without VHs, and a control group.
- To investigate the relationship between sleep quality, daytime sleepiness, and VHs in PD.
Main Methods:
- Nocturnal sleep assessed via actigraphy and sleep diaries.
- Daytime sleepiness and function evaluated using self-rating questionnaires.
- Comparison of sleep parameters across three groups: hallucinating PD patients, non-hallucinating PD patients, and age-matched controls.
Main Results:
- Both PD groups exhibited more sleep problems and altered sleep patterns than controls.
- Hallucinating PD patients had reduced sleep duration, increased awakenings, lower sleep efficiency, and greater daytime sleepiness compared to non-hallucinating PD patients.
Conclusions:
- VHs in some PD patients may stem from poor sleep and excessive daytime sleepiness.
- Arousal mechanisms might contribute to the development of VHs in Parkinson's disease.
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