Development of a new measurement system to automatically identify swallowing events during daily life

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K20437
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Prosthodontics/ Dental materials science and
• Research Institution: Okayama University
• Principal Investigator: Maeda Naoto 岡山大学, 医歯薬学総合研究科, 助教 (10708051)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 摂食・嚥下 / 嚥下音 / 嚥下回数 / 自動解析

Outline of Final Research Achievements

The purpose of this study was to develop a noninvasive and simple swallowing frequency measurement system that can automatically discriminate swallowing events during daily life.
Focusing on the physiological phenomenon that respiration stops when swallowing, a waveform recorded simultaneously of laryngeal sound and nostril sound was analyzed. As a result, it was possible to establish a protocol that can identify swallowing events under everyday environmental sounds. However, programming the protocol was difficult, and we could not build an analysis system that could automatically detect swallowing.
We also worked on elucidating the problem of "Which part of the cervical part of the neck can be gathered the optimum swallowing sound" that was derived during the research, and it was possible to summarize the result in the paper.

Free Research Field

補綴・理工系歯学　顎口腔機能学