Journal ArticleDOI
Aircraft noise effects on sleep: a systematic comparison of EEG awakenings and automatically detected cardiac activations.
TLDR
An algorithm for the automatic identification of cardiac activations associated with cortical arousals, which uses heart rate information derived from a single electrocardiogram (ECG) channel, may be used as estimates for EEG awakenings.Abstract:
OBJECTIVES: Polysomnography is the gold standard for investigating noise effects on sleep, but data collection and analysis are sumptuous and expensive. We recently developed an automatic algorithm for the identification of cardiac activations associated with cortical arousals, which uses heart rate information derived from a single electrocardiogram (ECG) channel (Basner et al. 2007a). We hypothesized that cardiac arousals can be used as estimates for EEG awakenings. METHODS: Polysomnographic EEG awakenings and automatically detected cardiac activations were systematically compared using laboratory data of 112 subjects (47 male, mean ± SD age 37.9 ± 13 years), 985 nights and 23,855 aircraft noise events (ANEs). RESULTS: The overall agreement was higher in control (81.9 %) compared to noise nights (76.4 %). However, if corrected for chance expected agreement according to Landis and Koch (1977), agreement was higher in noise (к=0.60) compared to control nights (к=0.33), representing “moderate to substantial” and “fair” agreement respectively. The probability of automatically detected cardiac arousals increased monotonously with increasing maximum sound pressure levels of ANEs, exceeding the probability of EEG awakenings by up to 18.1 %. If spontaneous reactions were taken into account, exposure-response curves were practically identical for EEG awakenings and cardiac arousals. CONCLUSIONS: Automatically detected cardiac arousals can be used as estimates for EEG awakenings. This inexpensive, objective, and non-invasive method facilitates large scale field studies on the effects of traffic noise on sleep. More investigations are needed to further validate the ECG algorithm in the field and to investigate interindividual differences in its ability to predict EEG awakenings.read more
Citations
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Journal ArticleDOI
Sleep and circadian rhythm disruption in psychiatric and neurodegenerative disease
TL;DR: It is proposed that brain disorders and abnormal sleep have a common mechanistic origin and that many co-morbid pathologies that are found in brain disease arise from a destabilization of sleep mechanisms.
Journal ArticleDOI
Single and combined effects of air, road, and rail traffic noise on sleep and recuperation.
TL;DR: In this article, the effects of air, road and rail traffic noise on sleep and recuperation were investigated for 11 consecutive nights, which included eight noise exposure nights and one noise-free control night.
Journal ArticleDOI
Evaluating the links between schizophrenia and sleep and circadian rhythm disruption.
David Pritchett,Katharina Wulff,Peter L. Oliver,David M. Bannerman,Kay E. Davies,Paul Harrison,Stuart N. Peirson,Russell G. Foster +7 more
TL;DR: It is argued that an understanding of the mechanistic overlap between SCRD and schizophrenia will ultimately lead to novel treatment approaches, which will not only ameliorate SCRD in schizophrenia patients, but also will improve their broader health problems and overall quality of life.
Journal ArticleDOI
On the Influence of Freight Trains on Humans: A Laboratory Investigation of the Impact of Nocturnal Low Frequency Vibration and Noise on Sleep and Heart Rate
TL;DR: Nocturnal vibration has a negative impact on sleep and that the impact increases with greater vibration amplitude, therefore, it is necessary to define levels that protect residents against sleep disruptive vibrations that may arise from night time railway freight traffic.
Journal ArticleDOI
Examining nocturnal railway noise and aircraft noise in the field: Sleep, psychomotor performance, and annoyance☆☆☆
Eva-Maria Elmenhorst,S. Pennig,Vinzent Rolny,J. Quehl,Uwe Mueller,Hartmut Maaß,Mathias Basner +6 more
TL;DR: Nocturnal freight train noise exposure in Germany was associated with increased awakening probabilities exceeding those for aircraft noise and contrasting the findings of many annoyance surveys and annoyance ratings of the study.
References
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Journal Article
EEG arousals: Scoring rules and examples. A preliminary report from the Sleep Disorders Atlas Task Force of the American Sleep Disorder Association
Michael H. Bonnet,David W. Carley,Mary A. Carskadon,P. Easton,Christian Guilleminault,R. Harper,B. Hayes,Max Hirshkowitz,P. Ktonas,S. Keenan,Mark R. Pressman,Timothy Roehrs,J. Smith,James K. Walsh,S. Weber,P. Westbrook,B. Jordan +16 more
Journal ArticleDOI
On Judging the Significance of Differences by Examining the Overlap Between Confidence Intervals
TL;DR: In this article, the authors compare this technique to the standard method of testing significance under the common assumptions of consistency, normality, and asymptotic independence of the estimates.
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