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In this study, we carried out experiments to measure the effect of viewing distance on visual fatigue using two kinds of visual content. Both experiments showed that visual fatigue reached a minimum at a distance of 3 to 4 times the height of the display (3–4H) and that sympathetic nerve activity peaked at around 3H. These results indicate that the viewing distance for less visual fatigue and a closer...
In this study, we carried out experiments to investigate the influence of display resolution on psychophysiological state while viewing various types of video content at 4K and 2K on a 65-inch 4K TV as a comparison between age groups. The participants viewed four kinds of TV video content (two types of scenic material and two kinds of material with movement and action). The results showed the psychological...
We experimentally evaluated the effect of display resolution on physiological and psychological state while viewing video content at 4K and 2K on a 65-inch 4K TV. Four kinds of video content (two types of scenic material and two types of material with movement and action) were used. Each program comprised two minutes of 4K and two minutes of 2K content. The results showed that the scores for “presence,”...
Using 3DTV, we experimentally estimated the relationship between TV viewers' emotional states and selected physiological indices. The results suggest near-infrared spectroscopy (NIRS), representing central nervous system activity, to be a potentially useful index for evaluating emotional states that include “feeling of involvement.” The low frequency/high frequency ratio (LF/HF), which represents...
Using 42-inch plasma screens and showing four kinds of content, we experimentally evaluated the relationship between TV viewers' emotional state and selected physiological and psychological indices. Our results indicated that near-infrared spectroscopy (NIRS) and low frequency/high frequency ratio (LF/HF), representing nervous system activities, are potentially useful indices for evaluating emotional...
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