DEVELOPMENT OF A SELF-CHECK SYSTEM FOR MENTAL HEALTH USING A PULSE WAVE MOUSE

Mayumi Oyama-Higa, Teijyu Miao, Kazuo Sato, Kazuyoshi Tanaka, Huaichang Cheng

2007

Abstract

We applied nonlinear chaos analysis to fingertip pulse wave data and found that the Lyapunov exponent, a measure of the “divergence” of the trajectory of the attractor, was a useful index of mental health in humans, particularly for the early detection of dementia and depressive psychosis, and for monitoring mental changes in healthy persons. We developed an easy-to-use economical device, a PC mouse with an integrated sensor for measuring the pulse waves, and its required software, to make the measurements. After about 1 min of measurement, the Lyapunov exponent is calculated and displayed as a graph on the PC. An advantage of this system is that the measurements can be made very easily and mental health can be assessed when the PC is not being used for other work. Moreover, the measured data can be saved according to the time and date, so diurnal changes and changes over longer time periods can be monitored as a time series. The changes in the Lyapunov exponent are displayed on the PC as constellation graphs.

Paper Citation

in Harvard Style

Oyama-Higa M., Miao T., Sato K., Tanaka K. and Cheng H. (2007). DEVELOPMENT OF A SELF-CHECK SYSTEM FOR MENTAL HEALTH USING A PULSE WAVE MOUSE . In Proceedings of the Second International Conference on Software and Data Technologies - Volume 3: EHST, (ICSOFT 2007) ISBN 978-989-8111-07-4, pages 239-248. DOI: 10.5220/0001322702390248

in Bibtex Style

@conference{ehst07,
author={Mayumi Oyama-Higa and Teijyu Miao and Kazuo Sato and Kazuyoshi Tanaka and Huaichang Cheng},
title={DEVELOPMENT OF A SELF-CHECK SYSTEM FOR MENTAL HEALTH USING A PULSE WAVE MOUSE},
booktitle={Proceedings of the Second International Conference on Software and Data Technologies - Volume 3: EHST, (ICSOFT 2007)},
year={2007},
pages={239-248},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001322702390248},
isbn={978-989-8111-07-4},
}

in EndNote Style

TY - CONF
JO - Proceedings of the Second International Conference on Software and Data Technologies - Volume 3: EHST, (ICSOFT 2007)
TI - DEVELOPMENT OF A SELF-CHECK SYSTEM FOR MENTAL HEALTH USING A PULSE WAVE MOUSE
SN - 978-989-8111-07-4
AU - Oyama-Higa M.
AU - Miao T.
AU - Sato K.
AU - Tanaka K.
AU - Cheng H.
PY - 2007
SP - 239
EP - 248
DO - 10.5220/0001322702390248