electroencephalogram

Gamma Power of Electroencephalogram Arousal is Modulated by Respiratory Event Type and Severity in Obstructive Sleep Apnea

Gamma Power of Electroencephalogram Arousal is Modulated by Respiratory Event Type and Severity in Obstructive Sleep Apnea IEEE Transactions on Biomedical Engineering (TBME)
This work investigated breathing obstruction-related arousal intensity via high-frequency spectral content in nocturnal electroencephalogram (EEG). Gamma band (30–40 Hz) power in EEG was studied during arousals caused by different respiratory events in 869 patients with suspected obstructive sleep apnea (OSA). Arousal gamma power was higher in deeper sleep and increased alongside the respiratory event severity. As elevated gamma activity could indicate a greater shift towards wakefulness, the results illustrate that the magnitude of sleep disruption might vary depending on the respiratory event characteristics. These findings can bring more insight into respiratory event-related sleep fragmentation in OSA severity assessment. read more

Matching Pursuit Based Time-Variant Bispectral Analysis and its Application to Biomedical Signals

Author(s): Karin Schiecke, Matthias Wacker, Franz Benninger, Martha Feucht, Lutz Leistritz, Herbert Witte
Matching Pursuit Based Time-Variant Bispectral Analysis and its Application to Biomedical Signals 260 216 IEEE Transactions on Biomedical Engineering (TBME)

Advanced time-variant and non-linear approaches can be beneficially used for analysis of biomedical signals and are able to gain new insights into specific signal characteristics like short term patterns in…

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