An experimental study of work load on VDT performance. Part 2. Effects of difference in input devices.

Misawa, Tetsuo; Shigeta, Sadayoshi

doi:10.1539/joh1959.28.462

Cited by 7 publications

(8 citation statements)

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“…At the same time, blinking is a physiologic function that may be affected by the environment and a subject's state of mind. 37,38 Further studies in which serial wavefront measurements are obtained in patients with dry eye or in subjects who wear contact lenses would be helpful to understand the dynamic optical quality of the eye related to the tear film, because unstable and irregular tear film in these eyes may induce impaired optical quality during steady gaze.…”

Section: Figurementioning

confidence: 99%

Serial Measurements of Higher-Order Aberrations after Blinking in Normal Subjects

Koh¹,

Maeda²,

Hirohara

et al. 2006

Invest. Ophthalmol. Vis. Sci.

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Section: Figurementioning

confidence: 99%

Serial Measurements of Higher-Order Aberrations after Blinking in Normal Subjects

Koh¹,

Maeda²,

Hirohara

et al. 2006

Invest. Ophthalmol. Vis. Sci.

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“…Lobes mapped under negative polarity had higher lobe roundness, symmetry, and regularity than those mapped under the positive polarity. Previous studies had shown superiority of positive polarity on optical distortion and speed of accommodation (Bauer & Cavonius, 1983), near point distance (Misawa & Shigeta, 1986), and visual comfort (Saito, et al, 1993). However, foveal acuity was not much better under the negative polarity condition (Westheimer, et al, 2003).…”

Section: Polar It^mentioning

confidence: 82%

“…Positive presentation displays were rated higher than negative ones when visual acuity and luminance contrast were considered important for a task (Bergqvist, 1984), and when pupil and lens accommodation were tested (Saito, Ishikawa, & Hatada, 1989). Misawa and Shigeta (1986) studied the effect of polarity on critical fusion frequency, near point distance, accommodation time, and subjective fatigue symptoms. Their results showed that the visual load using a negative presentation screen was greater than that for a positive one.…”

mentioning

confidence: 99%

Display Polarity, Stimulus Exposure Duration, and Visual Lobe Shape

Chiu

Chan

2007

Percept Mot Skills

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This study investigated the effects of visual display polarity and stimulus exposure duration on visual lobe shape. Analysis showed that regardless of display polarity and exposure duration combinations tested here, visual lobe contours were slightly irregular and asymmetric, of medium roundness, with a moderately rough boundary, and horizontally elongated with a mean length-width ratio of 1.53. Visual lobes mapped with negative display polarity were significantly rounder, slightly more regular and more symmetric along the vertical axis, compared with those mapped with positive polarity. Under the different polarity conditions, there were no significant differences in visual lobe area, perimeter, boundary smoothness, and elongation. When stimulus exposure duration increased from 200 to 400 msec. and from 200 to 300 msec., there were significant increases in the visual lobe area, perimeter, roundness, boundary smoothness, and regularity. No such changes were found when duration increased from 300 to 400 msec. Exposure durations did not have a significant effect on the shape categories of elongation and horizontal symmetry for the different stimuli. There were no statistically significant interactions between polarity and stimulus exposure duration for any of the lobe shape indexes used here.

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“…Many studies have attempted to find which approach is better. To evaluate visual load under these two different display polarities, Misawa and Shigeta (1986) investigated the accommodation time, critical fusion frequency, near-point distance, and subjective fatigue symptoms. In another study, changes in pupil size were measured (Taptagaporn & Saito, 1990).…”

Section: Display Polaritymentioning

confidence: 99%

Effects of Translational and Rotational Motions and Display Polarity on Visual Performance

et al. 2008

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This study investigated effects of both translational and rotational motion and display polarity on a visual identification task. Three different motion types--heave, roll, and pitch--were compared with the static (no motion) condition. The visual task was presented on two display polarities, black-on-white and white-on-black. The experiment was a 4 (motion conditions) x 2 (display polarities) within-subjects design with eight subjects (six men and two women; M age = 25.6 yr., SD = 3.2). The dependent variables used to assess the performance on the visual task were accuracy and reaction time. Motion environments, especially the roll condition, had statistically significant effects on the decrement of accuracy and reaction time. The display polarity was significant only in the static condition.

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An experimental study of work load on VDT performance. Part 2. Effects of difference in input devices.

Cited by 7 publications

References 0 publications

Serial Measurements of Higher-Order Aberrations after Blinking in Normal Subjects

Serial Measurements of Higher-Order Aberrations after Blinking in Normal Subjects

Display Polarity, Stimulus Exposure Duration, and Visual Lobe Shape

Effects of Translational and Rotational Motions and Display Polarity on Visual Performance

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