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  • 标题:Evaluating Tactile Sensitivity Adaptation by Measuring the Differential Threshold of Archers
  • 本地全文:下载
  • 作者:Kentaro Kotani ; Seiji Ito ; Toshihiro Miura
  • 期刊名称:Journal of PHYSIOLOGICAL ANTHROPOLOGY and Applied Human Science
  • 印刷版ISSN:1345-3475
  • 出版年度:2007
  • 卷号:26
  • 期号:2
  • 页码:143-148
  • DOI:10.2114/jpa2.26.143
  • 出版社:Japan Society of Physiological Anthropology
  • 摘要:

    This study investigated the relationship between the force applied to a finger and the differential threshold of the force. Further, it presented an improvement function for tactile perception in archers by adapting to circumstances in which enhanced tactile perception and finger dexterity are required to practice archery on a daily basis. For this purpose, a tactile display using an air jet was developed. The air was aimed at the center of the fingertip of the index finger. The inner diameter of the nozzle was set to 3 mm. In this study, a psychophysical experiment was conducted to obtain the differential threshold from two subject groups—an archery athlete group and a control group. A total of six levels of standard stimuli ranging from 2.0 gf to 7.0 gf was obtained. As a result, the differential threshold of the archery group was significantly higher than that of the control group. The Weber ratio of the archery group remained around 0.13 and that of control group was 0.10. The experiment also revealed that the differential threshold for archers exhibited less fluctuation between the trials and between the days, which implied that the tactile perception of archery athletes may be more stable than that of non-experienced subjects. This may be a plasticity property of tactile perception.

  • 关键词:Weber ratio; adaptation; differential threshold; tactile sensation; air-jet; archery athlete
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