Abstract: A psychosomatic diagnosis system in which evaluation of the psychosomatic condition of a person to be diagnosed is performed automatically and objectively, based on the response by voice with respect to a question and the like asked to the person to be diagnosed. The system includes an index database, a speech processing section for obtaining voice as a speech signal, an analog to digital conversion section for converting the speech signal into a digital speech signal, a data processing section for calculating a human strange attractor by using the chaos theory and storing the human strange attractor in the index database, an attractor evaluation section for performing a quantitative evaluation by using the calculated human strange attractor, and a display section for displaying the evaluation result.

Abstract: It is an object of the present invention to provide a psychosomatic diagnosis system in which evaluation of the psychosomatic condition of a person to be diagnosed is performed automatically and objectively, based on the response by voice with respect to a question and the like asked to the person to be diagnosed. This is a psychosomatic diagnosis system for diagnosing the psychosomatic condition by the voice responded to the question and the like, comprising an index database, a speech processing section for obtaining voice as a speech signal, an analog to digital conversion section for converting the speech signal into a digital speech signal, a data processing section for calculating a human strange attractor by using the chaos theory and storing the human strange attractor in the index database, an attractor evaluation section for performing a quantitative evaluation by using the calculated human strange attractor, and a display section for displaying the evaluation result.

Abstract: A device for chaological evaluation of human factor comprises a Lyapunov index calculator 23 for calculating a Lyapunov index by analyzing a digitized sound signal, which is changed into a digital data from a sound uttered by a person, by using a chaological method; a Lyapunov index change detector 24 for detecting a change in the Lyapunov index of the uttered sound, which is calculated by using the Lyapunov index calculator 23. A psychosomatic activity is predicted and determined by measuring a level of the load generated in the cerebrum on the basis of the change in the Lyapunov index detected by the Lyapunov index change detector 24.