Vibro-Tactile and Visual Asynchronies: Sensitivity and Consistency
Vibro-Tactile and Visual Asynchronies: Sensitivity and Consistency
复制标题
振动触觉和视觉异步：灵敏度和一致性
作者：
Jan B. F. van Erp;P. Werkhoven
我们调查了实际和视觉上指定的空时间间隔之间的一致性。在一个强迫选择辨别任务中，参与者判断两个间隔中的第二个间隔是比第一个间隔短还是长。两个脉冲定义了间隔。脉冲要么是指尖出现的振动触觉爆发，要么是中央凹出现的白色方形。对单模态和跨模态音程进行了比较。我们在100-800毫秒的范围内使用了四个级别的标准间隔持续时间。结果表明，触觉空间隔必须比视觉空间隔短8.5%，才能被感知到与视觉空间隔一样长。这种跨模态偏差在小间隔时较大，并随着标准间隔的增加而减小。韦伯分数（阈值除以标准区间）是20%，在标准区间内是恒定的。这表明韦伯定律适用于所测试的区间长度范围。此外，韦伯分数在单模态和跨模态比较中是一致的，这表明跨模态比较中没有额外的噪声。
We investigated the consistency between tactually and visually designated empty time intervals. In a forced-choice discrimination task, participants judged whether the second of two intervals was shorter or longer than the first interval. Two pulses defined the intervals. The pulse was either a vibro-tactile burst presented to the fingertip, or a foveally presented white square. The comparisons were made for uni-modal and cross-modal intervals. We used four levels of standard interval durations in the range of 100–800 ms. The results showed that tactile empty intervals must be 8.5% shorter to be perceived as long as visual intervals. This cross-modal bias is larger for small intervals and decreases with increasing standard intervals. The Weber fractions (the threshold divided by the standard interval) are 20% and are constant over the standard intervals. This indicates that the Weber law holds for the range of interval lengths tested. Furthermore, the Weber fractions are consistent over uni-modal and cross-modal comparisons, which indicates that there is no additional noise involved in the cross-modal comparisons.
频率选择性在听觉和振动触觉时间分辨率测量中的作用。
DOI：
10.1121/1.402772
发表时间：
1992
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
Formby,C;Morgan,LN;Forrest,TG;Raney,JJ
通讯作者：
Raney,JJ
振动触觉时间间隙检测作为年龄的函数。
DOI：
10.1121/1.399187
发表时间：
1990
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
VanDoren,CL;Gescheider,GA;Verrillo,RT
通讯作者：
Verrillo,RT