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Automated polysomnographic assessment for rapid eye movement sleep behavior disorder

  • US 7,996,076 B2
  • Filed: 04/02/2008
  • Issued: 08/09/2011
  • Est. Priority Date: 04/02/2007
  • Status: Expired due to Fees
First Claim
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1. A method for diagnosing and assessing rapid eye movement sleep behavior disorder (RBD) in a patient, comprising:

  • measuring at least one physiological signal of the patient during at least one rapid eye movement (REM) sleep time interval and at least one non-rapid eye movement (NREM) sleep time interval;

    determining a REM variance for the physiological signal within the at least one REM sleep time interval and an NREM variance for the physiological signal within the at least one NREM sleep time interval;

    establishing a threshold based on the NREM variance; and

    calculating a percentage of REM sleep time intervals with variance above the threshold, where the steps of determining, establishing and calculating are executed by a computer processor.

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