Understanding the underlying science of the generation of electrophysiologic signals
is necessary to monitor and interpret sleep studies accurately. There are many factors
that can alter a signal observed on a polysomnogram. Armed with the knowledge of how
an electrophysiologic signal is generated and recorded, those who study sleep and
its disorders are expected to be able to separate true from artifactual signals, and
know the difference between accurate signal data and unexpected alterations in these
signals. At any step in the process the diagnostic accuracy of a polysomnogram may
be altered or unreliable, which, if not detected and corrected, could adversely affect
the care of the patient.
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References
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© 2009 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
