Rhythm deficits in 'tone deafness'
Rhythm deficits in 'tone deafness'
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DOI：
10.1016/j.bandc.2006.03.005
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发表时间：
2006-10-01
影响因子：
2.5
通讯作者：
Griffiths, Timothy D.
中科院分区：
文献类型：
--
作者：
Foxton, Jessica M.;Nandy, Rachel K.;Griffiths, Timothy D.
人们普遍观察到，音调失聪的人听不到旋律的节拍，但在简单的计时测试中还没有发现缺陷。在这项研究中，我们调查了9名先天性失语症患者和9名对照组的节奏处理。参与者被呈现了成对的5音符序列，并被要求检测是否存在延长的间隔。在不同的条件下，声音序列被等时或以整数比节奏呈现，并且这些声音序列要么是单调的，要么是在音调上随机变化的。研究发现，“音盲”参与者对音高变化的序列的节奏分析能力比那些没有变化的人差，而控制组在这两种情况下获得了相同的阈值。这些结果表明，先天性健忘症的节奏缺陷是由音乐中的音高变化引起的。(C)2006 Elsevier Inc.保留所有权利。
It is commonly observed that 'tone deaf individuals are unable to hear the beat of a tune, yet deficits on simple timing tests have not been found. In this study, we investigated rhythm processing in nine individuals with congenital amusia ('tone deafness') and nine controls. Participants were presented with pairs of 5-note sequences, and were required to detect the presence of a lengthened interval. In different conditions the sound sequences were presented isochronously or in an integer-ratio rhythm, and these were either monotonic or varied randomly in pitch. It was found that the 'tone deaf' participants exhibited inferior rhythm analysis for the sequences that varied in pitch compared to those that did not, whereas the controls obtained equivalent thresholds for these two conditions. These results suggest that the rhythm deficits in congenital amusia result from the pitch-variations in music. (c) 2006 Elsevier Inc. All rights reserved.