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Reducing noise in a technique for diagnosing attention deficit hyperactivity disorder

  • US 6,527,730 B2
  • Filed: 12/21/2000
  • Issued: 03/04/2003
  • Est. Priority Date: 12/21/2000
  • Status: Expired due to Fees
First Claim
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1. A method of determining whether an individual has Attention Deficit Hyperactivity Disorder (ADHD) comprising:

  • sampling the peripheral skin temperature of a human subject during a predetermined time interval when the subject is in an inactive state to provide a sampled peripheral skin temperature signal containing noise;

    modulating said sampled peripheral skin temperature signal containing noise with a known reference signal to produce a modulated signal;

    inputting said modulated signal and said known reference signal to a Lock-in amplifier to produce a sampled peripheral skin temperature signal free of said noise; and

    analyzing the sampled peripheral skin temperature signal free of said noise for a pre-selected parameter to determine whether said predetermined parameter has a value indicative of ADHD.

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