Development of an Instrument for Plethysmography on the Forehead
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- ITOU Satoshi
- Department of Economics and Information, Gifu Shotoku Gakuen University
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- WASHINO Kaei
- Department of Nursing, Gifu Shotoku Gakuen University
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- INOUE Shoshi
- Hokkaido University of Education
Bibliographic Information
- Other Title
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- 測定部位に額を用いた脈波計の開発
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Abstract
The low frequency/high frequency (LF/HF) value and the coefficient of variation (CV) value of the R-R interval on electrocardiograms are known to be indices for autonomic nervous functions. A similar autonomic nervous function index is obtained with an optical method where plethysmography is used to detect blood volume at the capillaries on the tip of a finger or at an ear lobe. Since these methods require body restraint, we developed a portable detection system for autonomic nervous functions by attaching an optical sensor on the forehead. We demonstrated that this system gives similar results to the LF/HF value and the CV value from the autonomic nervous function systems and is an effective measure of activity in daily life.
Journal
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- The Journal of Education and Health Science
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The Journal of Education and Health Science 61 (2), 198-205, 2015
Japanese Society of Education and Health Science
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Details
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- CRID
- 1390289564744361216
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- NII Article ID
- 130008095905
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- NII Book ID
- AN00056330
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- ISSN
- 24349127
- 02850990
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- NDL BIB ID
- 026946932
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed