ArticleNeurobiology of sleep and circadian rhythms2026
Analytical amplitude/phase markers for neurological sleep apnea events.
Article in Neurobiology of sleep and circadian rhythms, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: Utilizing non-linear band-pass filtering, dominant wave forms representing apnea events are found to classify unstable ventilation systems. Methods: Data sets were gathered online from the 'St Vincent's University Hospital, Dublin', which consists of PSG recordings from subjects required to be older than 18 years of age, with no known cardiac disease or autonomic dysfunction, and not taking medication known to interfere with heart rate. Twenty-five subjects were selected for this study. An equation that represents the dominance of the amplitude component on apnea waveforms is described as the Amplitude Waveform AW(t) formula. Results: Sensitivity values for CSA events are 82.14%, where specificity/precision within this group is 71.43% (P < 0.0001). The upper and lower bound thresholds that delineate the apnea events have a fitting across all apnea cohorts where R Conclusions: Within the theta bandwidth, the amplitude component of the EEG signal has shown to be the dominant indicator of apnea locations, and the addition of the phase component enables precise identification of apnea events. Significance: Most apnea events occur in clusters that demonstrate a buildup of CO
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