• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2012.05a
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• pp.15-16
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• 2012

• Journal of Korean Ophthalmic Optics Society
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• v.7 no.2
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• pp.101-105
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• 2002

Spontaneous blinking as a function of visual activity and environmental condition with 60 healthy Korean young people(M=30, F=30) was estimated. Spontaneous blink rate of male and female was $19.2{\pm}2.0/min$ and $18.7{\pm}2.0/min$, respectively. There was no significant difference of blink rate in both contact lens wearer and non-wearer of female and also by various visual activity between female and male. Spontaneous blink rate was changed in response to changes in levels of visual activity and environmental condition such as windiness, rut not changed by light. In the more intense fixation spontaneous blink rate was lesser, but in the stronger windiness, the rate was higher than that in normal.

• Journal of Information Display
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• v.10 no.4
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• pp.188-194
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• 2009

Conventional stereoscopic (3D) displays using binocular parallax generate unnatural conflicts between convergence and accommodation. These conflicts can affect the observer's ability to fuse binocular images and may cause visual fatigue. In this study, time series changes in visual fatigue and depth sensation when viewing stereoscopic images with changing parallax were examined. In particular, the physiological changes, including the subjective symptoms of visual fatigue, when viewing five parallax conditions, were examined. Then a comparative analysis of the 2D and 3D conditions was performed based on the visual function. To obtain data regarding the visual function, the time series changes in the spontaneous-blinking rate before and during the viewing of 3D images were measured. The time series change results suggest that 2D and 3D images cause significantly different types of visual fatigue over the range of binocular disparity.

• Science of Emotion and Sensibility
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• v.19 no.4
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• pp.33-40
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• 2016

The purpose of this study is to improve social protection and benefits for pregnant women with the usage of LED care emblem. The study was conducted in the Seoul Metro by two research assistants on January 20th to 30th, 2015. One of subjects wore the LED care emblem and the other was present to record the data. An experiment was carried out total 60 times by wearing LED care emblem in 2 positions ((a) necklace and (b) bag), and 3 usages of Light ((1) Constant light, (2) No light which is like existing care emblem, and (3) blinking light at one-second intervals). Experimental results show there was a significant difference depending on the type of light. Mostly seat offering was the type of light (1) Constant light and it has 8 times (13.4%). The type of light (3) blinking light at one-second intervals has only 2 times (3.4%) seat offering. However, there were no seat offerings at the type of light (2) No light. Meanwhile, there were no significant differences in wearing position, time, the number of people in the train and gender. This study suggests that it is necessary to make LED care emblem with constant light in order to induce spontaneous seat offering.