Electrophysiologic disturbances during daytime in patients with restless legs syndrome: Further evidence of cognitive dysfunction?

Jung, Ki Young; Koo, Yong Seo; Kim, Byung Jo; Ko, Deokwon; Lee, Gwan Taek; Kim, Kyung Hwan; Im, Chang-Hwan

doi:10.1016/j.sleep.2010.08.018

Cited by 31 publications

(21 citation statements)

References 35 publications

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“…This study demonstrated that RLS patients had significant cognitive impairment due to sleep loss compared with their age-matched controls. These results were confirmed by another survey based on cognitive tasks [61] and by a recent neurophysiological study performing EEG and event-related potential analyses [62].…”

Section: Consequencessupporting

confidence: 64%

Sleep-related movement disorders

Merlino

Gigli

2011

Neurol Sci

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Several movement disorders may occur during nocturnal rest disrupting sleep. A part of these complaints is characterized by relatively simple, non-purposeful and usually stereotyped movements. The last version of the International Classification of Sleep Disorders includes these clinical conditions (i.e. restless legs syndrome, periodic limb movement disorder, sleep-related leg cramps, sleep-related bruxism and sleep-related rhythmic movement disorder) under the category entitled sleep-related movement disorders. Moreover, apparently physiological movements (e.g. alternating leg muscle activation and excessive hypnic fragmentary myoclonus) can show a high frequency and severity impairing sleep quality. Clinical and, in specific cases, neurophysiological assessments are required to detect the presence of nocturnal movement complaints. Patients reporting poor sleep due to these abnormal movements should undergo non-pharmacological or pharmacological treatments.

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Section: Consequencessupporting

confidence: 64%

Sleep-related movement disorders

Merlino

Gigli

2011

Neurol Sci

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“…According to the current study data, RLS patients are known to have sleep disorders and cognitive deficits in various forms [12]. Sleep disorders, in particular, may also cause some symptoms such as carelessness reflected into day, moodiness and paradoxical hyperactivity [13].…”

Section: Introductionmentioning

confidence: 78%

Daytime cerebral electrical activity in patients with restless legs syndrome

Titiz

Mungan

Mutlu

et al. 2015

Sleep Biol. Rhythms

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It is aimed to investigate whether the restless legs syndrome (RLS) relates to change in the cerebral electrical activity spreading to daylight hours by the way of comparing the awake EEG of patients who were diagnosed as RLS with the healthy control group. The study was conducted on 23 patients diagnosed as RLS and 20 healthy volunteers. Information about the history of RLS study group, biochemical parameters in both groups, 18-channel scalp EEG recordings and polysomnographic recordings were evaluated. In the patient group, beta band in background activity in 13, rare slow-wave paroxysms in the ground alpha band in 8 and alpha band in 2 patients were detected, while in the control group alpha band at 15, the beta band in 4 people and mild paroxysmal nonspecific findings in 1 person were detected. In our study mostly seen background activity featured in the EEG of RLS patients were found to be the beta activity. This led us to consider that beta band may be a common finding in RLS especially in ones with insomnia.

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“…10) The EEG reflects a particularly important physiological state of arousal which can be characterized using frequency analysis. 11) In particular, alpha oscillation is a sensitive measure of attentional demands in cognitive tasks, 12) and further, fluorescent light with low frequency ballasts has significantly decreased alpha power compared with high frequency ballasts. 6) Nevertheless, we fund no significant differences in EEG spectral power along all frequency bands, between the LED and fluorescent light conditions in our study.…”

Section: Discussionmentioning

confidence: 99%

Effects of Light-Emitting Diode Light on Human Electroencephalogram in Comparison with Fluorescent Light

Lee¹,

Lee²,

Kim³

et al. 2012

J Korean Sleep Res Soc

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Objectives: Selecting suitable illumination is an integral part of increasing productivity in the office or factory, because poor lighting conditions may often cause decreased work efficiency. Light emitting diode (LED) light is becoming recognized as one of the most promising general sources of illumination. We conducted spectral power analysis of electroencephalograms (EEGs) obtained during resting and cognitive task activities to identify the effects on human arousal and cognitive performance under LED light compared with conventional fluorescent light. Methods: Thirteen healthy, right-handed students participated in the present study. Each subject took part in two experimental sessions, one under fluorescent and one under LED lighting conditions. The experimental measurements consisted of a resting state EEG, an event-related potential (ERP) during a visual working memory (VWM) task, and a questionnaire about subjective feelings regarding the lighting conditions. The EEG power spectra, the amplitude and latency of the P300 ERP component, the behavioral responses for the VWM task, and the questionnaire data were compared for the two lighting conditions. Results: The EEG spectral power showed no difference between the LED and fluorescent lighting conditions. The amplitude of the P300 component decreased significantly with increasing numbers of items, while there were no differences between the two lighting conditions. Additionally, behavioral responses and subjective feelings were the same under the two lighting conditions. Conclusions: Our study suggests that there are no significant differences between LED light and fluorescent light on the human arousal state and VWM. J Korean Sleep Res Soc 2012;9:28-33

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Electrophysiologic disturbances during daytime in patients with restless legs syndrome: Further evidence of cognitive dysfunction?

Cited by 31 publications

References 35 publications

Sleep-related movement disorders

Sleep-related movement disorders

Daytime cerebral electrical activity in patients with restless legs syndrome

Effects of Light-Emitting Diode Light on Human Electroencephalogram in Comparison with Fluorescent Light

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