Evaluation of adaptation to visually induced motion sickness by using physiological index associated with baroreflex function.

Evaluation of adaptation to visually induced motion sickness by using physiological index associated with baroreflex function. Research Abstract Details 

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Evaluation of adaptation to visually induced motion sickness by using physiological index associated with baroreflex function. Abstract Text:

Norihiro Sugita,Makoto Yoshizawa,Makoto Abe,Akira Tanaka,Shigeru Chiba,Tomoyuki Yambe,Shin-Ichi Nitta,Norihiro Sugita,Makoto Yoshizawa,Makoto Abe,Akira Tanaka,Shigeru Chiba,Tomoyuki Yambe,Shin-ichi Nitta,

Visual images including intensive motions and the experience of virtual reality sometimes induce visually-indeuced motion sickness (VIMS). There are few studies that have objectively evaluated the effects of repetitive exposures to these stimuli on humans. In this study, an experiment was carried out in which the same video image was presented to human subjects three times. We evaluated changes of the intensity of VIMS they suffered from with a subjective score and a physiological index, ¿max, which is defined as the maximum cross-correlation coefficient between heart rate and pulse wave transmission time and is considered to reflect baroreflex function. The results showed that the adaptation to VIMS could be represented by a decrease in the objective index ¿max as well as the subjective score. On the contrary, however, some subjects' ¿max increased in a few similar time regions at every trial. This fact suggests that we can specify the part of the video image which is closely related to VIMS by analyzing the change in ¿max with time.

Evaluation of adaptation to visually induced motion sickness by using physiological index associated with baroreflex function. Publishing Authors By Initials

N Sugita,M Yoshizawa,M Abe,A Tanaka,S Chiba,T Yambe,S Nitta,N Sugita,M Yoshizawa,M Abe,A Tanaka,S Chiba,T Yambe,S Nitta,

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Evaluation of adaptation to visually induced motion sickness by using physiological index associated with baroreflex function. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Conference proceedings : ... Annual International

VOLUME: 1

Page Numbers: 303-6

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ISSN: 1557-170X

DAY: 16

MONTH: 11

YEAR: 2007

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LANGUAGE: eng

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AFFILIATION: Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan. phone: +81-22-795-7130; fax +81-22-263-9163; e-mail: sugita@yoshizawa.ecei.tohoku.ac.jp.

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