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1. WO2022004868 - AUDITORY ACUITY TEST SYSTEM AND AUDITORY ACUITY TEST METHOD

Publication Number WO/2022/004868
Publication Date 06.01.2022
International Application No. PCT/JP2021/025065
International Filing Date 02.07.2021
IPC
A61B 5/12 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
12Audiometering
A61B 5/372 2021.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
24Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
316Modalities, i.e. specific diagnostic methods
369Electroencephalography
372Analysis of electroencephalograms
A61B 5/38 2021.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
24Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
316Modalities, i.e. specific diagnostic methods
369Electroencephalography
377using evoked responses
38Acoustic or auditory stimuli
Applicants
  • 国立大学法人東京大学 THE UNIVERSITY OF TOKYO [JP]/[JP]
Inventors
  • 高橋 宏知 TAKAHASHI, Hirokazu
  • 可部 泰生 KABE, Yasuo
Agents
  • 稲葉 良幸 INABA, Yoshiyuki
  • 大貫 敏史 ONUKI, Toshifumi
Priority Data
2020-11487102.07.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) AUDITORY ACUITY TEST SYSTEM AND AUDITORY ACUITY TEST METHOD
(FR) SYSTÈME DE TEST D’ACUITÉ AUDITIVE ET PROCÉDÉ DE TEST D’ACUITÉ AUDITIVE
(JA) 聴力検査システムおよび聴力検査方法
Abstract
(EN) The present invention comprises: an EEG measuring unit for measuring EEG signals when a subject is exposed to an amplitude-modulated sound; an EEG dividing unit for dividing the measured EEG signals into segments that are no longer than the modulation period of the amplitude-modulated sound; a degree of similarity calculating unit for calculating the degree of similarity in EEG signals between any two out of all segments; and an assessing unit for assessing auditory acuity on the basis of the distribution of the degree of similarity.
(FR) La présente invention comprend : une unité de mesure d’EEG pour mesurer des signaux EEG lorsqu’un sujet est exposé à un son modulé en amplitude ; une unité de division d’EEG pour diviser les signaux EEG mesurés en segments qui ne sont pas plus longs que la période de modulation du son modulé en amplitude ; une unité de calcul de degré de similarité pour calculer le degré de similarité dans des signaux EEG entre deux quelconques parmi tous les segments ; et une unité d’évaluation pour évaluer l’acuité auditive sur la base de la distribution du degré de similarité.
(JA) 被験者に振幅変調音を与えた際の脳波信号を測定する脳波測定部と、測定された脳波信号を、振幅変調音の変調周期以下の長さの区間に分割する脳波分割部と、全区間のうちの任意の2つの区間の脳波信号の類似度を算出する類似度算出部と、類似度の分布に基づいて、聴力の判定を行う聴力判定部と、を備える。
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