Management of physiological and psychological state of an individual using images biometric analyzer

• US 6,309,342 B1
• Filed: 10/29/1999
• Issued: 10/30/2001
• Est. Priority Date: 02/26/1998
• Status: Expired due to Fees

• Current Assignee: CareStream Health Incorporated
• Original Assignee: Eastman Kodak Company
• Inventors: Fedorovskaya, Elena A., Patton, David L., Fredlund, John R., Mir, Jose M., Prabhu, Girish V., Parks, Peter A., Miller, Paige, Blazey, Richard N., Horwitz, Cecelia M.
• Primary Examiner(s): Dvorak, Linda C. M.
• Assistant Examiner(s): Kearney, R.
• Application Number:
  US09/430,445
• Time in Patent Office: 732 Days
• Field of Search: 600/26, 600/27, 600/300, 600/301, 600/544, 600/545-547, 434/236-238, 434/262, 434/267, 128/898
• US Class Current: 600/26
• CPC Class Codes: A61B 5/16 Devices for psychotechnics using teaching or educational appliances G09B1/00 - G09B7/00; Testing reaction times ; Devices for evaluating the psychological state
• CPC Class Codes: A61B 5/486 Bio-feedback A61B5/375 takes precedence
• CPC Class Codes: A61B 5/7257 using Fourier transforms
• CPC Class Codes: A61B 5/7264 Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems neural networks per se G06N3/00; expert systems per se G06N5/00
• CPC Class Codes: G16H 20/70 relating to mental therapies, e.g. psychological therapy or autogenous training
• CPC Class Codes: G16H 30/40 for processing medical images, e.g. editing

Abstract

A method of determining the physiological reactivity of an individual with respect to images, comprising: measuring at least one physiological parameter of an individual during a baseline calm period of time; measuring the said at least one physiological parameter of said individual during a stress period of time and a succeeding rest period of time; dividing said measured data for each of said periods of time into a plurality of predetermined time segments; computing a histogram or Fourier analysis as appropriate on said predetermined time segments for each said period of time; standardizing said computed data; conducting a principal component analysis, a canonical discriminant analysis, or a neural network, on said data to establish a baseline calm or rest period set of scores and a stress period set of scores; measuring the said at least one physiological parameter of said individual during an image presentation period of time; repeating said time segmenting, said histogram or Fourier analysis, and said standardizing steps on said measured physiological data for said image presentation period of time; applying said vectors from said conducting step to said image data to produce an image set of scores which are compared with said baseline and stress sets of scores; and determining whether said presented image is activating, deactivating, or neutral based on said comparison.

Claims

1. A method of determining the physiological reactivity of an individual with respect to images, comprising:

measuring at least one physiological parameter of an individual during a baseline calm period of time;

measuring the said at least one physiological parameter of said individual during a stress period of time and a succeeding rest period of time;

dividing said measured data for each of said periods of time into a plurality of predetermined time segments;

computing a histogram or Fourier analysis as appropriate on said predetermined time segments for each said period of time;

standardizing said computed data;

conducting a principal component analysis, a canonical discriminant analysis, or a neural network, on said data to establish a baseline calm or rest period set of scores and a stress period set of scores;

measuring the said at least one physiological parameter of said individual during an image presentation period of time;

repeating said time segmenting, said histogram or Fourier analysis, and said standardizing steps on said measured physiological data for said image presentation period of time;

applying vectors from said conducting step to said image data to produce an image set of scores which are compared with said baseline and stress sets of scores; and

determining whether said presented image is activating, deactivating, or neutral based on said comparison.

2. The method of claim 1 wherein a plurality of physiological parameters are measured during said calm, stress, rest and image periods of time.

3. The method of claim 2 wherein said plurality of physiological parameters are heart rate, EMG, and eye saccades.

4. The method of claim 1 wherein said data is sampled many times a second.

5. The method of claim 1 wherein said time segments are 15 second periods.

6. The method of claim 1 wherein in said applying step said comparing constitutes one of the following, distance from baseline set of scores, distance from stress set of scores, the ratio of the distance from the baseline set of scores and the distance from stress set of scores.