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本文设计了一个回忆性实验和一个再认性实验,使用自行研制的振动触觉表达装置作为实验平台,研究了人手腕部的振动强度触觉感知短时记忆特性。首先通过回忆性实验确定了人手腕部的振动强度触觉感知平均记忆容量(简称振动强度记忆容量),然后在记忆容量范围内又进行了再认性实验,对人手腕部的振动触觉再认正确率和反应时进行了数据分析。通过实验,我们得到人手腕部振动强度触觉感知相关的5个重要特性:(1)振动强度记忆容量为3±1;(2)振动触觉刺激的振动强度离散间隔越大,振动强度记忆容量就越大;(3)振动强度记忆容量具有显著的性别差异;(4)振动触觉短时记忆信息的提取是逐个比较的遍历扫描过程;(5)触觉感知再认正确率和反应时表现均远逊于视觉和听觉。这些实验结果有助于充分了解人体的触觉感知特性,是振动触觉表达编码方案的重要设计依据。
In this paper, a recall experiment and a receptivity experiment are designed. Using the self-developed vibrating tactile expression device as an experimental platform, the tactile perception of short-term memory characteristics of the vibration intensity of the human wrist is studied. Firstly, the tactile sense of the average memory capacity (referred to as the vibration strength memory capacity) of the vibration intensity of the wrist of the human hand is determined through the recall experiment, and then the receptivity experiment is conducted within the memory capacity range to recognize the vibration tactile sense of the human wrist again Data was analyzed for rates and reactions. Through experiments, we get five important characteristics related to the tactile perception of the vibration intensity of the wrist: (1) the vibration memory capacity is 3 ± 1; (2) the vibration intensity of vibration tactile stimulation The greater the discrete interval, the vibration memory capacity (3) Vibration intensity memory capacity has significant gender difference; (4) Vibrating tactile short-term memory information extraction is one by one compared with traversal scanning process; (5) Tactile perception recognition accuracy and reaction time are far Less than visual and auditory. These experimental results help to fully understand the tactile perception of the human body, which is an important design basis of the vibration haptic expression coding scheme.