言語聴覚障害に関する遠隔診断システムの構築 (第2報)

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  • ゲンゴ チョウカク ショウガイ ニ カンスル エンカク シンダン システム ノ コウチク ダイ2ホウ

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We gained an opportunity to be involved in the construction of a remote diagnosis system relating to speech-1anguage-hearing disorders as a part of a research and development project for such as (supplementary) result evolution for FY2000, 'Multi-media model medical care evolution project in Nobeoka City in Miyazaki Prefecture' by Telecommunications Advancement Organization of Japan ; TAO. Prior remote systems were mostly relating to electrocardiogram and imaging diagnosis, and were hardly used in the rehabilitation, or speech-1anguage-hearing treatment domain. We therefore constructed a system to realize presentation of test-stimuli and collection of responses of the subjects through the Internet, as a basic research for development of a remote system effective for speech-language-hearing treatment. This system is a server client system connected to the Internet, and it was possible to carry out in three respects, i.e. phonation and articulation, language comprehension and language representation, and hearing. In the first practical experiment carried out in May, 2002, it was confirmed that presentation of stimuli for the vowel phonation task in respect of phonation and articulation, picture-pointing task and picture-naming task in respect of language comprehension and language representation, and pure tone detection task in respect of hearing, and collection of responses of the subjects were possible. In our second practical experiment in February 2003, the content of stimulus signal to present for each task and the number of trials were reconsidered and the way of responding with a touch panel was improved, resulting that the mean test time, which was 20 min for the first practical experiment was shortened to 13 min. It was found that this test is applicable even to a subject younger than 10 years old. However, the recognition rate was low in the voice recognition program of a phonation-articulation task, resulting that the frequency to make a retrial became high. Whereas for a hearing task, the rate of detection was low, especially for weak stimuli because of the influence of surrounding noises in addition to the inadequate test procedures. In December 2003, the third practical experiment is scheduled as the last experiment of our research project, in which we have a plan to improve the test procedures on a large scale as possible. Furthermore, we will investigate the practical applicability of this system through collecting information about each normal value of various measurement items.

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