Discrimination of two neighboring intra- and intermodal empty time intervals marked by three successive stimuli
Discrimination of two neighboring intra- and intermodal empty time intervals marked by three successive stimuli
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DOI：
10.1016/j.actpsy.2013.11.013
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发表时间：
2014-06-01
影响因子：
1.8
通讯作者：
Grondin, Simon
中科院分区：
文献类型：
--
作者：
Kuroda, Tsuyoshi;Hasuo, Emi;Grondin, Simon
我们研究了由三个连续刺激标记的两个相邻的通道内或通道间空时间间隔的区分。三个标记中的每一个都是闪光（视觉V）或声音（听觉A）。第一个和最后一个标记具有相同的模态，而第二个标记是A或V，导致四种情况：VVV，VAV，AVA和AAA。参与者判断第二个间隔的持续时间是系统性变化的，是否比500毫秒的第一个间隔更短或更长。与VVV和AAA相比，VAV对辨别力的损害更大，而AVA对辨别力的损害更小（实验1）。而VAV和AVA由相同的一组单一的联运间隔（VA和AV），歧视是受损的VAV相比，AVA条件。VAV和AVA之间的这种差异不能归因于参与者执行辨别任务的策略，例如，忽略标准间隔或用声音代替视觉刺激（实验2）。这些结果进行了讨论，根据感官相似性的顺序分组。(C)2013爱思唯尔有限公司版权所有。
We investigated the discrimination of two neighboring intra- or inter-modal empty time intervals marked by three successive stimuli. Each of the three markers was a flash (visual V) or a sound (auditory A). The first and last markers were of the same modality, while the second one was either A or V, resulting in four conditions: VVV, VAV, AVA and AAA. Participants judged whether the second interval, whose duration was systematically varied, was shorter or longer than the 500-ms first interval. Compared with VVV and AAA, discrimination was impaired with VAV, but not so much with AVA (in Experiment 1). Whereas VAV and AVA consisted of the same set of single intermodal intervals (VA and AV), discrimination was impaired in the VAV compared to the AVA condition. This difference between VAV and AVA could not be attributed to the participants' strategy to perform the discrimination task, e.g., ignoring the standard interval or replacing the visual stimuli with sounds in their mind (in Experiment 2). These results are discussed in terms of sequential grouping according to sensory similarity. (C) 2013 Elsevier B.V. All rights reserved.