Measurement of human tactile sensation capability to discriminate fine surface textures using a variable step-height presentation system
The purpose of this study is to analyze the human sensory information processing of fine-surface textures in three psychophysical experiments. We measured difference thresholds of fine step-height discrimination. These values are important in examining the sensitivity of human mechanoreceptive units...
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| Vydáno v: | 1996 IEEE 5th International Workshop on Robot and Human Communication s. 274 - 279 |
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| Hlavní autoři: | , , , |
| Médium: | Konferenční příspěvek |
| Jazyk: | angličtina |
| Vydáno: |
IEEE
1996
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| ISBN: | 9780780332539, 0780332539 |
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| Abstract | The purpose of this study is to analyze the human sensory information processing of fine-surface textures in three psychophysical experiments. We measured difference thresholds of fine step-height discrimination. These values are important in examining the sensitivity of human mechanoreceptive units. To begin with, we developed a computer-controlled measurement system to present fine step-heights of 0 to 30 /spl mu/m to five human subjects. To obtain the thresholds efficiently, the subjects distinguished between two step-heights presented in a PEST (parameter estimation by sequential testing) trial sequence. In Experiment A, the subjects actively touched the step-heights (active-touch). In Experiment B, they passively touched the step-heights that were driven linearly by an X-table with cyclic movement (passive-touch). In Experiment C they actively touched the step-heights cooled to 15/spl deg/C. The result shows that the thresholds in the active-touch experiment agreed almost with those in the passive-touch experiment. Also, the distinctive sensitivity did not decline even if the step-heights were cooled at 15/spl deg/C. |
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| AbstractList | The purpose of this study is to analyze the human sensory information processing of fine-surface textures in three psychophysical experiments. We measured difference thresholds of fine step-height discrimination. These values are important in examining the sensitivity of human mechanoreceptive units. To begin with, we developed a computer-controlled measurement system to present fine step-heights of 0 to 30 /spl mu/m to five human subjects. To obtain the thresholds efficiently, the subjects distinguished between two step-heights presented in a PEST (parameter estimation by sequential testing) trial sequence. In Experiment A, the subjects actively touched the step-heights (active-touch). In Experiment B, they passively touched the step-heights that were driven linearly by an X-table with cyclic movement (passive-touch). In Experiment C they actively touched the step-heights cooled to 15/spl deg/C. The result shows that the thresholds in the active-touch experiment agreed almost with those in the passive-touch experiment. Also, the distinctive sensitivity did not decline even if the step-heights were cooled at 15/spl deg/C. |
| Author | Ohka, M. Mitsuya, Y. Kawamura, T. Miyaoka, T. |
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| DOI | 10.1109/ROMAN.1996.568845 |
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| Snippet | The purpose of this study is to analyze the human sensory information processing of fine-surface textures in three psychophysical experiments. We measured... |
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| StartPage | 274 |
| SubjectTerms | Anthropometry Humans Inspection Psychology Reactive power Rough surfaces Surface roughness Surface texture Testing Vibrations |
| Title | Measurement of human tactile sensation capability to discriminate fine surface textures using a variable step-height presentation system |
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