著者

Tomoharu Ishikawa Muneto Tatsumoto Katuhiro Maki Minoru Mitsui Hiroshi Hasegawa Koichi Hirata

出版者

The Japanese Society of Internal Medicine

雑誌

Internal Medicine (ISSN:09182918)

巻号頁・発行日

pp.2206-18, (Released:2019-02-01)

参考文献数

33

被引用文献数

9

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Objectives Sound hypersensitivity is highly comorbid with migraine headaches. To elucidate the pathogenic mechanism of migraine attacks, we must first identify the types of everyday environmental sounds they perceive as unpleasant and clarify the acoustic properties of such sounds. This study aimed to clarify the true nature of "noise," i.e. everyday sounds perceived as unpleasant by migraineurs, by evaluating their subjective comfort/discomfort in response to several sounds commonly heard in everyday life. Methods Participants were presented with 20 environmental sounds they would likely hear daily. Subjects rated the pleasantness/unpleasantness of each stimulus using a nine-step scale. Patients We recruited 50 adults with migraine headaches (46 women, 4 men) and 50 healthy controls (35 women, 15 men). Results Migraineurs provided statistically significantly lower (more unpleasant) ratings to ambulance sirens, police car sirens, and railroad crossing bells than did controls. Our analysis also investigated the acoustic characteristics associated with higher rating gaps between the two groups. Greater divergence in ratings for the same stimulus was associated with less power (smaller amplitude envelope) and slower temporal variation in signals in the 400-Hz band. Conclusion We identified specific signal components associated with different subjective (un) pleasantness scores between migraineurs and healthy adults, which may lead to the elucidation of the pathogenic mechanism underlying migraine attacks triggered by sound.

著者

Genki Kato Kosuke Oiwa Tatsuya Iwaki Tomoharu Ishikawa Akio Nozawa

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)

巻号頁・発行日

vol.138, no.7, pp.805-811, 2018-07-01 (Released:2018-07-01)

参考文献数

20

被引用文献数

1

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Selfies may have an effect on the psychophysiological state. The objective of the present study was to evaluate the psychophysiological state by providing feedback for selfies. The effect of the time period was also investigated. The period from the date a selfie was taken to the experiment date was configured as 2 conditions: a Short period (1-40 days) and a Long period (41-80 days). In this study, the evocation of emotions was attempted by providing feedback for four types of selfie 1: good face, 2: bad face, 3: good psychological state, and 4: bad psychological state. “Comfort emotion”, “Like emotion”, and “Awareness” significantly increased when providing feedback for a selfie evaluated as having a good face and a good psychological state. The experimental results using two-way analysis of variance revealed that the physiological state was not affected by the time period, but the psychological state was affected by the time period. The combination of (Positive Face Evaluation) × (Long period) selfies had more positive effect on “Awareness”.

著者

渡辺 久晃 石川 智治 徳弘 一路 Hisateru Watanabe Tomoharu Ishikawa Ichiro Tokuhiro

出版者

神奈川工科大学

雑誌

神奈川工科大学研究報告.B,理工学編 (ISSN:09161902)

巻号頁・発行日

vol.20, pp.157-164, 1996-03-20

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電気電子工学