Short-term memory characteristics of vibro-tactile perception in human fingertips.
- Author:
Xin-Yu TONG
1
,
2
;
Xin-Li WU
1
,
2
;
Si-Ru LI
1
,
2
;
Jin-Peng HUANG
1
,
2
;
Wen-Zhen YANG
1
,
3
Author Information
1. Virtual Reality Laboratory
2. Zhejiang Sci-Tech University, Hangzhou 310018, China.
3. Zhejiang Sci-Tech University, Hangzhou 310018, China. ywz@zstu.edu.cn.
- Publication Type:Journal Article
- MeSH:
Adult;
Female;
Fingers;
Humans;
Male;
Memory, Short-Term;
Touch;
Touch Perception;
Vibration;
Young Adult
- From:
Acta Physiologica Sinica
2020;72(5):643-650
- CountryChina
- Language:Chinese
-
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.
