Effects of sound-marker durations on rhythm perception
Effects of sound-marker durations on rhythm perception
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DOI：
10.1068/p6846
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发表时间：
2011-01-01
期刊：
影响因子：
1.7
通讯作者：
Hirose, Yukiko
中科院分区：
文献类型：
--
作者：
Hasuo, Emi;Nakajima, Yoshitaka;Hirose, Yukiko
本研究的目的是探讨声音标记持续时间对简单节奏模式感知的影响。这些包括三个连续的声音，标记两个相邻的时间间隔，T1和T2，以及它们的开始。我们改变了三个声音标记的持续时间，使他们无论是20或60毫秒。T1和T2的持续时间也不同，但T1和T2的总持续时间固定在240或480毫秒。在实验1中，参与者比较T1和T2的持续时间。在实验2中，每个间隔的主观持续时间分别测量。我们发现，延长终止一个间隔的声音标记的持续时间增加了该间隔的主观持续时间：延长第二个标记的持续时间增加了T1的主观持续时间，延长第三个标记的持续时间增加了T2的主观持续时间。当T1 + T2 = 240 ms时，第一标记的持续时间越长，T1的主观持续时间越长，尤其是当T1 > T2时。第一标记持续时间的这种效应，在对照条件下使用的单一间隔无法观察到，似乎增强了T1和T2之间的对比。标记持续时间的影响与以前的时间知觉研究，其中使用单一的时间间隔。他们在节奏感知研究的背景下进行了讨论，其中使用了更复杂的声音模式。
Our aim in this study was to examine the influence of sound-marker durations on the perception of simple rhythm patterns. These comprised three successive sounds marking two neighbouring time intervals, T1 and T2, with their onsets. We varied the durations of each of the three sound markers to make them either 20 or 60 ms. Durations of T1 and T2 were also varied, but the total duration of T1 and T2 was fixed at either 240 or 480 ms. In experiment 1, participants compared the durations of T1 and T2. In experiment 2, the subjective duration of each interval was measured separately. We found that lengthening the duration of the sound marker which terminated an interval increased the subjective duration of that interval: lengthening the duration of the second marker increased the subjective duration of T1, and lengthening the duration of the third marker increased the subjective duration of T2. Lengthening the duration of the first marker increased the subjective duration of T1 when T1 + T2 = 240 ms, especially when T1 > T2. This effect of first-marker duration, which could not be observed with single intervals used in the control conditions, seemed to enhance the contrast between T1 and T2. The effects of marker durations are associated with previous time-perception studies, in which single time intervals were used. They are discussed in the context of rhythm-perception studies, in which more complex sound patterns have been used.