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Volume 24, Issue 3
Displaying 1-8 of 8 articles from this issue
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Tenji WAKE1988 Volume 24 Issue 3 Pages 137-142
Published: June 15, 1988
Released on J-STAGE: March 11, 2010
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Hiromi WAKE1988 Volume 24 Issue 3 Pages 143-149
Published: June 15, 1988
Released on J-STAGE: March 11, 2010
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Tohru IFUKUBE1988 Volume 24 Issue 3 Pages 151-156
Published: June 15, 1988
Released on J-STAGE: March 11, 2010
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Yutaka SHIMIZU1988 Volume 24 Issue 3 Pages 157-163
Published: June 15, 1988
Released on J-STAGE: March 11, 2010
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Mitsuo AI1988 Volume 24 Issue 3 Pages 165-176
Published: June 15, 1988
Released on J-STAGE: March 11, 2010
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Kenji ITOH1988 Volume 24 Issue 3 Pages 177-187
Published: June 15, 1988
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSAccording to the development of hardware and software technology, computer systems have been widely used in many fields. Information displayed on VDT, which is used as their visual interface, play an important part to ease the operation of computer systems. This research intends to provide some useful information for the design of human-computer interface, for example, the method of presentation of information displayed on VDT, which matches characteristics on human visual information processing of VDT tasks. In this research, visual recognition process is focused on as a basic and common human cognitive processing, and this recognition process is divided into six components. They are acquisition of displayed information on VDT, generation of visual information, judgement of eye-movement, programming of eye-movement, eye-movement and transformation of visual into recognized information. In particular, some human characteristics on each component, for various positions of displayed information, are clarified through two experiments taking up the upper-case letters as visual stimuli. In addition, in order to provide useful information for actual systems design and work design, a visual recognition model is built on the basis of psychological background, and is verified by using experimental data.View full abstractDownload PDF (1367K) -
Kazuyuki KUROBE, Toshio HORIUCHI, Yutaka TOMITA1988 Volume 24 Issue 3 Pages 189-194
Published: June 15, 1988
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSA visual division characteristics of an interval between two scale lines (visual interpolation) is experimentally studied. Two scale lines are displayed on CRT and subjects are required to divide them into 10 equal intervals and to read the position of a pointer which appears between the scale lines randomly.
In the first experiment, the subjects answer if the pointer is on one of the 10 equally devided positions. After 2250 trials, it is found that at the positions of 3/10, 4/10, 6/10 and 7/10, the readings are less accurate than the others (i.e. 1/10, 2/10, 5/10, 8/10 and 9/10) and are closer to the center than the pointer positions. In the second experiment, the subjects are required to round off the positions of the pointer to the 10 equally devided positions (round off task). Each subject has 4000 trials. They seem to image the third scale line at the midpoint of the scale lines, and their readings deviate to the nearest scale line.View full abstractDownload PDF (515K) -
Akinori KOMATSUBARA, Yoshimi YOKOMIZO1988 Volume 24 Issue 3 Pages 195-202
Published: June 15, 1988
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSThe psychologically acceptable upper limits of computer system response time (SRT) are experientially proposed by R. B. Miller (1968). The difference of the kinds of psychological stress under the upper limits are studied in this paper. At several levels of SRT, calculation and odd-even discriminating task were imposed on subjects with a personal computer. Performance time, psychological stress and eye movements were analyzed. As the results, psychological stress are almost acceptable situation under the proposed upper limits by Miller. However the differences of the kinds of psychological stress, such that rather long SRT brings relaxed feelings but rather short SRT brings self-paced feelings, are observed. Too short SRT brings more psychological stress, and when the task requires eye movements, performance time decreases. These results mean there exist lower limits of SRT in the ergonomic sense. In conclusion, Miller's proposed upper limits of SRT are generally accepted in this study. However kinds of stress slightly differ even under the upper limits and the lower limits of SRT appear to exist in the ergonomic sense.View full abstractDownload PDF (884K)
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