An analysis of the processing of intramodal and intermodal time intervals
An analysis of the processing of intramodal and intermodal time intervals
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DOI：
10.3758/s13414-019-01900-7
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发表时间：
2020-06-01
影响因子：
1.7
通讯作者：
Grondin, Simon
中科院分区：
文献类型：
--
作者：
Azari, Leila;Mioni, Giovanna;Grondin, Simon
在这3个实验的研究中，在300-ms和900-ms的持续时间范围内的韦伯分数获得与9种类型的空间隔从三种类型的信号的组合产生的标记的开始和结束的信号：听觉（A），视觉（V），或触觉（T）。有三种类型的模态内间期（AA，TT和VV）和六种类型的模态间间期（AT，AV，VA，VT，TA和TV）。在实验1（A）、2（V）和3（T）中，第二个标记总是相同的。在不确定性策略中，第一个标记是从试验到试验随机呈现的2个感觉信号中的1个，该研究提供了不同标记类型间隔的感知长度的直接比较。结果表明，韦伯分数是几乎恒定的三种类型的内模式的间隔，但明显低于在900毫秒比在300毫秒的联运条件。在几种情况下，模态内间隔被感知为短于模态间间隔，这被解释为检测模态内间隔的第二标记的效率的影响。TA和VA间期（实验1）以及AV和TV间期（实验2）之间无显著差异，但在实验3中，AT间期被认为长于VT间期。的结果进行解释的广义形式的韦伯定律，使用的信号的属性，用于解释额外的非时间噪声中观察到的联运条件。
In this 3-experiment study, the Weber fractions in the 300-ms and 900-ms duration ranges are obtained with 9 types of empty intervals resulting from the combinations of three types of signals for marking the beginning and end of the signals: auditory (A), visual (V), or tactile (T). There were three types of intramodal intervals (AA, TT, and VV) and 6 types of intermodal intervals (AT, AV, VA, VT, TA, and TV). The second marker is always the same during Experiments1(A), 2 (V), and 3 (T). With an uncertainty strategy where the first marker is 1 of 2 sensory signals being presented randomly from trial to trial, the study provides direct comparisons of the perceived length of the different marker-type intervals. The results reveal that the Weber fraction is nearly constant in the three types of intramodal intervals, but is clearly lower at 900 ms than at 300 ms in intermodal conditions. In several cases, the intramodal intervals are perceived as shorter than intermodal intervals, which is interpreted as an effect of the efficiency in detecting the second marker of an intramodal interval. There were no significant differences between the TA and VA intervals (Experiment1) and between the AV and TV intervals (Experiment2), but in Experiment3, the AT intervals were perceived as longer than the VT intervals. The results are interpreted in terms of the generalized form of Weber's law, using the properties of the signals for explaining the additional nontemporal noise observed in the intermodal conditions.