Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
505174 | Computers in Biology and Medicine | 2013 | 9 Pages |
Abstract
Breathing dynamics vary between infant sleep states, and are likely to exhibit non-linear behaviour. This study applied the non-linear analytical tool recurrence quantification analysis (RQA) to 400 breath interval periods of REM and N-REM sleep, and then using an overlapping moving window. The RQA variables were different between sleep states, with REM radius 150% greater than N-REM radius, and REM laminarity 79% greater than N-REM laminarity. RQA allowed the observation of temporal variations in non-linear breathing dynamics across a night's sleep at 30 s resolution, and provides a basis for quantifying changes in complex breathing dynamics with physiology and pathology.
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Authors
Philip I. Terrill, Stephen J. Wilson, Sadasivam Suresh, David M. Cooper, Carolyn Dakin,