@phdthesis{oai:nagoya.repo.nii.ac.jp:00014768,
 author = {Miyaoka, Tetsu and Mano, Tadaaki and Ohka, Masahiro},
 month = {Apr},
 note = {The purpose of this study was to evaluate the ability of touch to discriminate fine-surface textures and to suggest possible mechanisms of the discriminations. Two experiments were performed. In experiment 1, aluminum-oxide abrasive papers were adopted as stimuli, and psychometric functions and difference thresholds were determined in fine-surface-texture discrimination tasks. The grit values of abrasive papers were 400, 600, 1200, 2000, 3000, 4000, and 8000; corresponding average particle sizes were 40, 30, 12, 9, 5, 3, and 1 μm, respectively. Ten subjects participated in experiment 1. The difference thresholds obtained in experiment 1 were between 2.4 and 3.3 μm. In experiment 2, the tasks were discriminations of ridge height. The cross sections of the etched ridges were rectangular and the ridge heights were 6.3, 7.0, 8.6, 10.8, 12.3, 18.5, and 25.0 μm. Six subjects participated in experiment 2. The difference thresholds in experiment 2 were between 0.95 and 2.0 μm. It was reasoned, based on the Weber fraction values calculated from the difference thresholds and on the limit of neural information-processing ability of humans, that the subjects discriminate fine roughness only from the amplitude information presented in surface unevenness., 名古屋大学博士学位論文 学位の種類 : 博士(医学)(論文) 学位授与年月日:平成11年7月30日 宮岡徹氏の博士論文として提出された},
 school = {名古屋大学, NAGOYA University},
 title = {Mechanisms of fine-surface-texture discrimination in human tactile sensation},
 year = {1999}
}