腕の運動知覺に於ける時間錯誤
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The influence of time-interval upon the time-error was shown by <I>köhler</I> and <I>Wada</I> concerning the successive comparison of the intensity or the pitch of tone.<BR>In my experiments, such influence was investigated by comparing the range of arm motion successively.<BR><I>Apparatus:</I> Kinematometer.<BR>Procedure: Method: Wirth's method of 'complete series.'<BR>The range of arm motion was indicated in angle; Standard: 10°, Variables: 7°, 8°, 9°, 10°, 11°, 12°. 13°.<BR>Kinds of time-interval: 1, 2, 4, 8 sec.<BR>Manners of arm motion: active-fast; active-slow; passive-fast; passive-slow.<BR>Results:<BR>1. When the manner of arm motion was active-fast and under good conditions, either the positive time-error decreased or the negative time-error increased with the increase of time-interval.<BR>2. When arm motion was passive-slow, such a relation was reversed.<BR>3. This difference may be due to the structure of kinematic perception the segregation in the perceptual field is greatest when the manner of arm motion is active-fast while the segregation is weakest when it is passive-slow.
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