TY - JOUR
T1 - Discrimination Thresholds for Passive Tactile Volume Perception by Fingertips
AU - Zhang, Jian
AU - Zhang, Zhilin
AU - Go, Ritsu
AU - Li, Chunlin
AU - Wu, Jinglong
N1 - Funding Information:
Zhang Jian Intelligent Robotics Institute, School of Mechatronical Engineering, Beijing Institute of Technology, China Zhang Zhilin Department of Psychiatry, Graduate School of Medicine, Kyoto University, Japan Go Ritsu Intelligent Robotics Institute, School of Mechatronical Engineering, Beijing Institute of Technology, China https://orcid.org/0000-0002-4437-558X Li Chunlin School of Biomedical Engineering, Capital Medical University, Beijing, China Wu Jinglong Intelligent Robotics Institute, School of Mechatronical Engineering, Beijing Institute of Technology, China Chunlin Li, School of Biomedical Engineering, Capital Medical University, No. 10, Xi TouTiao, You An Men Wai, 100069 Beijing, China. Email: lichunlin1981@163.com 2019 0301006619878560 4 3 2019 5 9 2019 © The Author(s) 2019 2019 SAGE Publications Haptic object perception is still poorly understood up to now. This study investigated the ability of human fingers to discriminate the volume of objects by passive touch. Experiments measured the discrimination threshold of volume using three tasks: passive tactile volume perception, passive tactile area perception, and active tactile volume perception. In each trial, we utilized two plastic cubes to successively stimulate the fingers, and participants were instructed to make comparisons between the stimulus objects’ volume and area. Results showed that there was no significant difference in the discrimination thresholds of tactile volume perception between passive touch and active touch, whereas significant differences in the discrimination thresholds between fingertips, such as the thumb versus the pinky finger. In passive touch, the discrimination thresholds of volume perception were larger than that with surface area perception. We found that the discrimination of the volume of objects is more difficult than the discrimination of the area of the objects. passive tactile perception active tactile perception volume perception area perception discrimination threshold Beijing Nova Program http://doi.org/10.13039/501100005090 Z171100001117057 National Key Research and Development Program of China 2018YFC0115400 Beijing Municipal Science and Technology Commission Z161100002616020 Z181100003118007 National Natural Science Foundation of China http://doi.org/10.13039/501100001809 61633018 61727807 81671776 81771909 edited-state corrected-proof
Publisher Copyright:
© The Author(s) 2019.
PY - 2019/12/1
Y1 - 2019/12/1
N2 - Haptic object perception is still poorly understood up to now. This study investigated the ability of human fingers to discriminate the volume of objects by passive touch. Experiments measured the discrimination threshold of volume using three tasks: passive tactile volume perception, passive tactile area perception, and active tactile volume perception. In each trial, we utilized two plastic cubes to successively stimulate the fingers, and participants were instructed to make comparisons between the stimulus objects’ volume and area. Results showed that there was no significant difference in the discrimination thresholds of tactile volume perception between passive touch and active touch, whereas significant differences in the discrimination thresholds between fingertips, such as the thumb versus the pinky finger. In passive touch, the discrimination thresholds of volume perception were larger than that with surface area perception. We found that the discrimination of the volume of objects is more difficult than the discrimination of the area of the objects.
AB - Haptic object perception is still poorly understood up to now. This study investigated the ability of human fingers to discriminate the volume of objects by passive touch. Experiments measured the discrimination threshold of volume using three tasks: passive tactile volume perception, passive tactile area perception, and active tactile volume perception. In each trial, we utilized two plastic cubes to successively stimulate the fingers, and participants were instructed to make comparisons between the stimulus objects’ volume and area. Results showed that there was no significant difference in the discrimination thresholds of tactile volume perception between passive touch and active touch, whereas significant differences in the discrimination thresholds between fingertips, such as the thumb versus the pinky finger. In passive touch, the discrimination thresholds of volume perception were larger than that with surface area perception. We found that the discrimination of the volume of objects is more difficult than the discrimination of the area of the objects.
KW - active tactile perception
KW - area perception
KW - discrimination threshold
KW - passive tactile perception
KW - volume perception
UR - http://www.scopus.com/inward/record.url?scp=85074014429&partnerID=8YFLogxK
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U2 - 10.1177/0301006619878560
DO - 10.1177/0301006619878560
M3 - Article
C2 - 31558099
AN - SCOPUS:85074014429
VL - 48
SP - 1252
EP - 1267
JO - Perception
JF - Perception
SN - 0301-0066
IS - 12
ER -