DISPOSITIF ET SYSTÈME D'ÉVALUATION DE L'APTITUDE À LA DISCRIMINATION DE LA PAROLE, DISPOSITIF DE DÉTERMINATION DU GAIN DE PROTHÈSE AUDITIVE, PROCÉDÉ ET PROGRAMME D'ÉVALUATION DE L'APTITUDE À LA DISCRIMINATION DE LA PAROLE
The present invention makes it possible to evaluate a user's speech-discrimination ability with high precision. A speech-discrimination-ability evaluation system obtains the following from a brain-wave signal from the user: an event-related electric potential starting at a point in time at which first speech outputted with a first frequency was outputted； an event-related electric potential starting at a point in time at which first speech outputted with a second frequency was outputted； an event-related electric potential starting at a point in time at which second speech outputted with the first frequency was outputted； and an event-related electric potential starting at a point in time at which second speech outputted with the second frequency was outputted. For both the first speech and the second speech, an MNN evaluation unit: acquires differential information on the difference between the event-related electric potential obtained when the speech in question was outputted at the first frequency and the event-related electric potential obtained when said speech was outputted at the second frequency； and evaluates whether or not said differential information contains a negative component in a prescribed time period after the speech was outputted. If the result of said evaluation indicates the presence of a negative component, a discrimination-ability evaluation unit evaluates the user as discriminating between the first and second speech.La présente invention permet d'évaluer avec une précision élevée l'aptitude à la discrimination de la parole d'un utilisateur. Un système d'évaluation de l'aptitude à la discrimination de la parole obtient d'un signal d'onde cérébrale de l'utilisateur : un potentiel électrique lié à un événement, débutant à un moment dans le temps où la première parole sortie avec une première fréquence a été sortie ； un potentiel électrique lié à un événement, débutant à un moment dans le temps où la première parole sortie avec une deuxième fré
