Spectrophotometer for tissue examination
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United States of America Patent
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Apr 15, 2003
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N/A
app pub date -
Jul 14, 1998
filing date -
May 16, 1991
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Abstract
A method and apparatus for transcranial examination of brain activity. Electromagnetic radiation of a selected wavelength is introduced into the brain from an input port located on an exterior of the subject's head. Radiation that has migrated through the subject's head is detected at a detection port to generate detected signals. While introducing and detecting the electromagnetic radiation, stimulation of brain activity is induced. The detected radiation signals are processed, and the processed signals are analyzed to determine a characteristic of the brain activity by correlating the processed signals with the stimulation.
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