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Psychological state assessment device, psychological state assessment method

  • US 20050154322A1
  • Filed: 01/11/2005
  • Published: 07/14/2005
  • Est. Priority Date: 01/14/2004
  • Status: Active Grant
First Claim
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1. A psychological state assessment device which has a subject perform an assignment that comprises multiple tasks and that sets up a rest, a time during which a task is not given, between a specified task and the following task, and which assesses the psychological state when performing the assignment, comprising:

  • a measurement unit that detects specified parameter signals having a correlation to the amount of blood and/or the amount of blood components in a specified measurement site in the brain of the aforementioned subject, and measures the intensity of the parameter signals;

    a calculator that calculates the amount of blood and/or amount of blood components based on the parameter signal intensities that the measurement unit measures;

    a time change data generator that generates time change data indicating the time changes for the amount of blood and/or the amount of blood components when performing a task and when resting respectively by acquiring sequentially over time the amount of blood and/or the amount of blood components that the calculator calculates; and

    an output unit that outputs such that a distinction can be made between time change data while performing a task and time change data while at rest, both of which are generated by the time sequence data generator, and also outputs such that the time change data during a specified rest can be compared with time change data while performing the immediately prior and immediately following tasks; and

    configured such that the psychological state of the subject when performing the assignment is assessed based on the aforementioned time change data while at rest.

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