Toshihito Matsui
Kyoto University
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Publication
Featured researches published by Toshihito Matsui.
Noise & Health | 2006
Masamitsu Miyakawa; Toshihito Matsui; Hiroki Kishikawa; Rumiko Murayama; Iwao Uchiyama; Toshihiro Itoh; Takahiko Yoshida
Effects of noise on the secretion of salivary chromogranin A (CgA), which is considered to be a substitute measure of catecholamines, were investigated in a laboratory experiment. This study included 20 male subjects with normal hearing; their ages ranged from 21 to 24 years. Prior to the experiment, the subjects were asked to answer a questionnaire containing the 28-item General Health Questionnaire (GHQ-28) and Weinsteins noise sensitivity scale. White noise at 90 dB was presented to the subjects for 15 min with 15-minute-rest periods before and after noise exposure. It was shown that salivary CgA levels increased significantly during noise exposure and decreased immediately after it (Friedmans test, p = 0.001, two tailed). This result suggests that salivary CgA can be used to measure the stress response to noise. Furthermore, individual differences in the change in salivary CgA levels were discussed in relation to the subjective responses of the participants to the questionnaire. Some subjects showed prolonged elevation in the salivary CgA levels and the others showed immediate recovery or no effects. These individual differences correlated with the score on the somatic symptoms in GHQ-28; this implies that the score on the somatic symptoms in GHQ-28 could be a measure of physiological sensitivity to noise.
Noise & Health | 2006
Hiroki Kishikawa; Toshihito Matsui; Iwao Uchiyama; Masamitsu Miyakawa; Kozo Hiramatsu; Stephen Stansfeld
Many studies have shown the significant correlation between noise annoyance and noise sensitivity identified by Weinsteins noise sensitivity scale (WNS). However, the validity of the scale has not been sufficiently assessed. This study was designed to investigate the validity of each question in WNS and to develop a more valid noise sensitivity measurement scale. A questionnaire study was conducted in a residential area along trunk roads in Kusatsu, Japan, and 301 responses were collected. In this paper, noise sensitivity was defined as the factor that induced individual variability in reactions caused by noise exposure and that is not affected by the noise exposure. The relationship between noise exposure and answers to each question in WNS was investigated by multiple logistic regression analysis, and the influence of response bias on the score of WNS was examined. The results showed that WNS contained some questions that were inappropriately related to noise exposure level and that the score was affected by response bias. The reported correlation between annoyance and the score of WNS could be confounded by noise exposure and response bias. A noise sensitivity measurement scale named WNS-6B was newly developed, excluding the biased questions from the original WNS and applying binary coding to six-response options in order to reduce the response bias. WNS-6B seemed to be more appropriate to assess noise sensitivity than the original scale.
Journal of Sound and Vibration | 2004
Toshihito Matsui; Takashi Uehara; Takashi Miyakita; Kozo Hiramatsu; Yasutaka Osada; Takeo Yamamoto
Noise & Health | 2009
Hiroki Kishikawa; Toshihito Matsui; Iwao Uchiyama; Masamitsu Miyakawa; Kozo Hiramatsu; Stephen Stansfeld
Archive | 2008
Kenichi Morio; Yoshio Tadahira; Koichi Yamashita; Shinji Ohashi; Toshihito Matsui
Nippon Eiseigaku Zasshi (japanese Journal of Hygiene) | 2003
Toshihito Matsui; Tomoyuki Matsuno; Kaoru Ashimine; Takashi Miyakita; Kozo Hiramatsu; Takeo Yamamoto
Archive | 2008
Masamitsu Miyakawa; Toshihito Matsui; Iwao Uchiyama; Kozo Hiramatsu; Naoki; Iwao Morita; Kenichi Morio; Koichi Yamashita; Shinji Ohashi
Journal of Sound and Vibration | 2004
Kozo Hiramatsu; Toshihito Matsui; A. Ito; Takashi Miyakita; Yasutaka Osada; Takeo Yamamoto
Journal of Sound and Vibration | 1997
K. Minoura; K. Hiramatsu; Toshihito Matsui; Koichi Takagi; K. Oi
Epidemiology | 2011
Chantana Padungtod; Chatchai Ekpanyaskul; Piyarat Nuchpongsai; Nattapong Laemun; Toshihito Matsui; Kozo Hiramatsu