1992 Fiscal Year Final Research Report Summary
Sensory Information Processing Mechanisms of Touch Discrimination for Fine Surface Textures
| Project/Area Number |
03831007
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
認知科学
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| Research Institution | Shizuoka Institute of Science and Technology |
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Principal Investigator |
MIYAOKA Tetsu Shizuoka Institute of Science and Technology Department of Computer Science Associate Professor, 理工学部, 助教授 (00111815)
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| Project Period (FY) |
1991 – 1992
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| Keywords | Touch Sensations / Discrimination of Fine Surface Textures / Absolute Thresholds / Difference Thresholds / Psychophysics / Weber Fractions / Mechanoreceptive Units / ロボティクス |
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| Research Abstract |
Purposes of this study were to evaluate discriminating ability of touch for fine surface textures and to estimate sensory information processing mechanisms for the ability
In the most important experiment aluminum oxide abrasive papers were adopted as the stimuli. Their grit values were 400, 600, 1200, 2000, 3000, 4000, and 8000. Difference thresholds were measured with two-way forced choice technique, and were between 2.4 mum and 3.0 mum when they could be determined.
It was reasoned, based on Weber's fractions of difference thresholds and on the limits of neural information processing ability in humans, that the subjects knew degrees of roughness only from amplitude information present in surface unevenness.
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