ONTOGONY ON MECHANISMS OF INFORMATION PROCESSING CONCERNING HEAVINESS PERCEPTION

重量感知信息处理机制的本体论

基本信息

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

项目摘要

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

由于所有视觉输入完全被阻挡，本研究中的受试者仅使用指尖来调查触觉感知尺寸在人类重量感知中的参与情况，用于测试的物体由三组组成：铜（CP）、铝（AL）和塑料。 (PL) - 十个立方体，重量分别为 0.05、0.10、0.15、0.20、0.25、0.29、0.39、0.49，所有立方体均完全覆盖有光滑的乙烯基材料，以消除与各个立方体的实际成分有关的任何无关输入。精心放置的屏幕完全封闭了工作空间，以消除任何可能的视觉线索。位于一对相同材料的立方体之间 - CP 与 CP、AL 与 AL、PL 与 PL - 以消除密度的影响十五个受试者 (<M>__- = 19.2，<SD>___- = 0.68 年）试图判断实验者交给他们并用拇指和食指摩擦的每次试验中第一个和第二个立方体之间的重量差异。总共 340 次试验，70 种重量组合，其中包括 160 次上升试验（较重）、160 次下降试验（较轻）和 20 次每种材料的相同重量试验是伪随机地呈现给每个受试者的，所有材料的重量差异和试验次数都是相同的，因此触觉大小被视为受试者对相同重量的反应的准确性。对三种材料中放置一对相同组合的立方体产生的重量差异进行了比较，发现像 CP 这样具有较小尺寸效应的材料有利于更准确地辨别相同的重量。与 PL 的差异具有更显着的尺寸效应，这表明在比较相同密度的物体时，指尖感知的尺寸的微小变化对重量感知有直接影响；尽管在本研究建立的条件下不存在这种影响。当比较不同密度的物体时，这一发现可以被认为类似于尺寸重量错觉（Charpentier 1891）。这项研究的结果还表明触觉尺寸不断参与其中。人类对重量的感知以及整合了重量和触觉尺寸因素的处理机制的存在，其中重量随着重量的增加或尺寸的减小而增加，反之亦然更少