| Attractor structure discriminates sleep states: recurrence plot analysis applied to infant breathing patterns. | |
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MedLine Citation:
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PMID: 20172814 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Breathing patterns are characteristically different between infant active sleep (AS) and quiet sleep (QS), and statistical quantifications of interbreath interval (IBI) data have previously been used to discriminate between infant sleep states. It has also been identified that breathing patterns are governed by a nonlinear controller. This study aims to investigate whether nonlinear quantifications of infant IBI data are characteristically different between AS and QS, and whether they may be used to discriminate between these infant sleep states. Polysomnograms were obtained from 24 healthy infants at six months of age. Periods of AS and QS were identified, and IBI data extracted. Recurrence quantification analysis (RQA) was applied to each period, and recurrence calculated for a fixed radius in the range of 0-8 in steps of 0.02, and embedding dimensions of 4, 6, 8, and 16. When a threshold classifier was trained, the RQA variable recurrence was able to correctly classify 94.3% of periods in a test dataset. It was concluded that RQA of IBI data is able to accurately discriminate between infant sleep states. This is a promising step toward development of a minimal-channel automatic sleep state classification system. |
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Authors:
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Philip Ian Terrill; Stephen James Wilson; Sadasivam Suresh; David M Cooper; Carolyn Dakin |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-02-17 |
Journal Detail:
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Title: IEEE transactions on bio-medical engineering Volume: 57 ISSN: 1558-2531 ISO Abbreviation: IEEE Trans Biomed Eng Publication Date: 2010 May |
Date Detail:
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Created Date: 2010-07-27 Completed Date: 2010-12-15 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0012737 Medline TA: IEEE Trans Biomed Eng Country: United States |
Other Details:
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Languages: eng Pagination: 1108-16 Citation Subset: IM |
Affiliation:
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School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, Qld. 4067, Australia. p.terrill@uq.edu.au |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Algorithms* Diagnosis, Computer-Assisted / methods* Discriminant Analysis Female Humans Infant Male Pattern Recognition, Automated / methods* Plethysmography, Impedance / methods* Polysomnography / methods* Reproducibility of Results Respiratory Rate / physiology* Sensitivity and Specificity Sleep Stages / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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