Ontology type: schema:ScholarlyArticle Open Access: True
2006-08
AUTHORSMark Brink, Christopher H. Müller, Christoph Schierz
ABSTRACTWe describe a noncontact method for the ambulant measurement of basic sleep physiology parameters in humans, particularly for field studies involving sleep research and sleep disturbances. This method traces the body movements, respiration, and heart action of a person at rest or asleep on a bed, using four high-resolution force sensors installed under the bedposts. The recoil movement of the body at each heartbeat, known as the cardioballistic effect, as well as the lifting and lowering of the thorax, while breathing, causes very small shifts of the center of gravity of the bed and the subject. These shifts are reflected in the altering force distributions across the four sensors. Cardiac and respiratory parameters and the subject’s movement activity can be calculated from the sensor signals. Neither electrodes nor other kinds of transducers are in direct contact with the subject, which is the main advantage of this technique over conventional methods. Laboratory experiments were carried out to estimate validity and practicability. The method has been found to be adequate, especially for automated and unattended sleep-data collection over long periods of time. More... »
PAGES511-521
http://scigraph.springernature.com/pub.10.3758/bf03192806
DOIhttp://dx.doi.org/10.3758/bf03192806
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PUBMEDhttps://www.ncbi.nlm.nih.gov/pubmed/17186762
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