The Japanese Journal of Ergonomics
Online ISSN : 1884-2844
Print ISSN : 0549-4974
ISSN-L : 0549-4974
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Volume 8, Issue 6
Displaying 1-5 of 5 articles from this issue
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  • Learing processes on mental and physical responses about driving
    T. Okubo
    1972 Volume 8 Issue 6 Pages 247-262
    Published: December 15, 1972
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.8.247
    JOURNAL FREE ACCESS
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    One of the most important factors that we should take into consideration when we estimate the output of the system is that man has a learning ability. In the wider field of Ergonomics, a tremendous number of studies have been done to investigate the relationship between skills and various responses of people who are engaged in many varieties of work.
    The results of the author's studies are related to the results of a seried of experiments that were carried out both in Japan and in England during the last 2 years using 3 male Japanese students and 12 English (also male) students as unskilled-drivers and beginner-drivers to determine the learning patterns and psychophysiological responses while their learning of driving.
    The results of these experiments show that the gradual acquiring of driving skills gained through an increasing number of practices are distinetly revealed in psychophysiological reactions. The heart-rate, respiration rate, galvanic skin reflex, E. O. G and Critical Flicker Frequencies of the subjects show their highest level in ther first practice, and gradual decrease to their final levels as practices proceed.
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  • Material hardness detecting hand
    H. Naganuma, I. Kato
    1972 Volume 8 Issue 6 Pages 263-271
    Published: December 15, 1972
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.8.263
    JOURNAL FREE ACCESS
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    A living body has five senses, such are the sense of sight, that of hearing, that of taste, that of smell and that of skin. This study deals with the human sense of hardness which relates to the compression of the sense organ of skin. With respect to the material hardness, none of the customary research papers have been published from the viewpoint of bionics. Then the object of this paper is to produce the artificial hand by way of experiments, which has the same sense of hardness as a living body has. As test pieces, about forty sorts of things which we could touch in daily life, and fifteen sorts of beams which were different in length and thickness were selected.
    Consequently, it was found that the actual measurements of material hardness by the mechanical model corresponded to the human sense of hardness. From now on this method of detecting can be applied to a robot or an artificial hand.
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  • Multidimensional analysis of similarity judgements of forms
    H. Kamisasa, Y. Inukai
    1972 Volume 8 Issue 6 Pages 273-283
    Published: December 15, 1972
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.8.273
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    In an attempt to recover the underlying structure of similarity judgements by using random polygons as the stimuli, we have applied the several types of multidimensional scaling techniques to the data. The spatial representations of perceived forms show considerably good fit of the models.
    The psychological factors thus obtained were also related to physical factors independently constructed from the physical variables.
    The future developments of the field concerning with similarity judgments of forms and methodology for analyses are discussed.
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  • Learning characteristics of human operator in man-machine system
    H. Akashi, H. Hashimoto
    1972 Volume 8 Issue 6 Pages 285-292
    Published: December 15, 1972
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.8.285
    JOURNAL FREE ACCESS
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    This paper deals with a problem on the learning characteristics of human operator in a compensatory tracking control task.
    It is already known that the human operator can learn and adapt himself to changes in control dynamics.
    It is therefore essential for a system designer to analyze the learning behavior of the human operator. However, the process of learning has not been nivestigated in much detail. A new method to assess the learning process of a human operator is proposed here by fitting the experimental curve to logarithmic function. Variations of the coefficients are then considered to provide a measure for the learning speed.
    The new method of evaluating the learning process is applied to the cases of step response and frequency response. Also, in order to reduce the training interval, the method of performance scores display is used for the detection of optimal switching point in a relay control system. The result of these investigations presented in this paper are expected to be of use in the design of man-machine systems.
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  • Abstracts of Kanto Branchi '72 Anual meeting of J. E. R. S.
    1972 Volume 8 Issue 6 Pages 293-297
    Published: December 15, 1972
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.8.293
    JOURNAL FREE ACCESS
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