Short-term memory characteristics of vibro-tactile perception in human fingertips / 生理学报
Acta Physiologica Sinica
;
(6): 643-650, 2020.
Article
in Chinese
| WPRIM
| ID: wpr-878209
ABSTRACT
This paper discusses the short-term memory of vibro-tactile perception of human fingertips. By using a self-developed vibro-tactile expression device, a recall experiment was firstly carried out among 20 subjects aged 20-30 (10 males and 10 females) to discover the memory span about the vibro-tactile perception of human fingertips. Within this memory span, a cognitive experiment analyzing the recognition accuracy and the reaction time was carried out. The results showed (1) The vibro-tactile memory span of human fingertip is 4 ± 1; (2) The vibro-tactile memory span increases as the discrete intensity between vibration stimuli increases; (3) Too long or too short vibration duration will reduce the vibro-tactile memory span, and the optimal vibration duration for men is 400 ms, for women is 300 ms; (4) The more the number of vibration stimuli is perceived by the human fingertip, the lower the recognition accuracy and the longer the reaction time it needs; (5) Compared with the vibration stimuli in disorder, people are more likely to remember the vibration stimuli in increasing/decreasing order; (6) The information extraction mechanism of the short-term memory about fingertip vibro-tactile perception bases a point to point scanning process among these stimuli. These results help to understand the human fingertip tactile characteristics and provide a physiological basis for the study of tactile feedback technologies.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Touch
/
Vibration
/
Touch Perception
/
Fingers
/
Memory, Short-Term
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Acta Physiologica Sinica
Year:
2020
Type:
Article
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