ONTOGONY ON MECHANISMS OF INFORMATION PROCESSING CONCERNING HEAVINESS PERCEPTION

重量感知信息处理机制的本体论

• 批准号: 11680067
• 负责人: KAWAI Satoru
• 金额: $ 2.18万
• 依托单位: TEZUKAYAMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11680067/
• 关键词: HEAVINESS; WEIGHT; FINGERTIP; HAPTIC SIZE; DENSITY; HUMAN

With all visual input totally blocked, subjects in this study utilized fingertips only to investigate the involvement of Haptically Perceived Size in Heaviness Perception among humans. The objects used for testing consisted of three sets - copper (CP), aluminum (AL), and plastic (PL) - of ten cubes weighing 0.05, 0.10, 0.15, 0.20, 0.25, 0.29, 0.39, 0.49, 0.74, and 0.98 N respectively. All of the cubes were completely covered with a smooth vinyl material to eliminate any extraneous input concerning the actual composition of the individual cubes. Strategically placed screens totally enclosed the working space to eliminate any possible visual cues. Each comparison was between a pair of cubes of the same material - CP vs. CP, AL vs. AL, and PL vs. PL - to eliminate the effect of Density. Fifteen subjects (<M>__- = 19.2, <SD>___- = 0.68 yr.) attempted to judge differences in heaviness between the first and second cube in each trial that had been handed to them by the experimenter and were g … More rasped between the thumb and the index finger. A total of 340 trials with 70 combinations of Weight composed of 160 Ascending Trials (heavier), 160 Descending Trials (lighter), and 20 Identical Weight Trials were pseudo-randomly presented to each subject for each material. Combinations of difference in Weight and the number of trials were identical for all materials so that Haptic Size was regarded as the single independent factor. Accuracy of the subjects' responses for Identical Weight Differences that resulted from placing a pair of cubes of the same combination was compared among the three materials. It was observed that a material like CP that had a lesser Size Effect facilitated significantly more accurate discrimination of the Identical Weight Differences than PL with its more significant Size Effect. This suggests that small changes in Haptically Perceived Size by the fingertips have a direct influence on Heaviness Perception when comparing objects of equal Density ; although it did not exist in the conditions established for this study, this finding can be considered analogous to the Size-Weight Illusion when comparing objects of unequal Density (Charpentier 1891). The findings of this study also suggest the constant involvement of Haptic Size in Heaviness Perception by humans along with the existence of a processing mechanism that integrates the factors of Weight and Haptic Size in which heaviness increases either as Weight increases or as Size decreases, and vice versa Less

随着所有视觉输入完全阻塞，本研究的受试者仅利用指尖来研究人类中触觉感知的大小在沉重感中的参与。用于测试的对象由三组 - 铜（CP），铝（Al）和塑料（PL）组成，分别为0.05、0.10、0.10、0.15、0.20、0.20、0.25、0.25、0.29、0.39、0.49、0.49、0.49、0.74和0.98 n。所有的立方体都用光滑的乙烯基材料覆盖，以消除有关单个立方体实际组成的任何无关输入。策略上放置的屏幕完全封闭了工作空间，以消除任何可能的视觉提示。每个比较都是相同材料的一对立方体-CP与CP，Al vs. Al和PL与PL的比较，以消除密度的效果。 15个受试者（<m> __- = 19.2，<sd> ___- = 0.68年）试图判断专家将第一个和第二个立方体之间的天堂差异判断，而专家已将其交给了他们，并且被G…在拇指和索引手指之间均倍增。总共进行了340次试验，其中70种由160次上升试验组成（重），160次降级试验（较轻）和20次相同的体重试验，每种材料都呈现伪随机试验。所有材料的重量差异和试验数的组合都是相同的，因此触觉大小被认为是单个独立因素。在三种材料中比较了受试者对相同重量差异的相同重量差异的响应的准确性。据观察，具有较小尺寸效应的材料像CP相同的重量差异比PL具有更明显的尺寸效应，从而明显更准确地辨别相同的重量差异。这表明，在比较相等密度的物体时，通过指尖对触觉感知的大小的小变化会直接影响沉重感。尽管在本研究建立的条件下不存在，但在比较不等密度的物体时，这一发现可以被认为类似于大小的幻觉（Charpentier 1891）。这项研究的发现还表明，触觉大小不断参与人类沉重感，以及存在一种加工机制的存在，该机制整合了体重和触觉大小的因素，其中天上随着体重的增加或尺寸的减小而增加，而越来越小，而越来越小的vice vicea vicea vise vise。

项目成果

Satoru Kawai: "Heaviness perception II. Contributions of object weight, haptic size, and density to the accurate perception of heaviness or lightness"Experimental Brain Research. 147. 23-28 (2002)

Satoru Kawai：“重量感知 II。物体重量、触觉大小和密度对准确感知重量或重量的贡献”实验性大脑研究。

Satoru Kawai: "Heaviness perception I. Constant involvement of haptically perceived size in weight discrimination"Experimental Brain Research. 147. 16-22 (2002)

Satoru Kawai：“重量感知 I. 触觉感知尺寸在体重辨别中的不断参与”实验性大脑研究。