Receptive amusia: temporal auditory processing deficit in a professional musician following a left temporo-parietal lesion
Receptive amusia: temporal auditory processing deficit in a professional musician following a left temporo-parietal lesion
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DOI：
10.1016/j.neuropsychologia.2003.12.004
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发表时间：
2004-01-01
期刊：
影响因子：
2.6
通讯作者：
Schnider, A
中科院分区：
文献类型：
--
作者：
Di Pietro, M;Laganaro, M;Schnider, A
本研究探讨了一位职业音乐家在左颞顶叶中风后患失乐症的音乐加工过程。病人在旋律处理的各个方面表现出保留的度量判断和正常的表现。相比之下，他失去了辨别或再现节奏的能力。心律失常仅在听觉模态中观察到：对听觉呈现的节律的辨别严重受损，而视觉模态中的表现正常。此外，长度效应被观察到的节奏的歧视，而这是不是旋律歧视的情况。心律失常不能解释为低水平的听觉处理障碍，如间隔和长度的歧视和损害是有限的听觉输入，因为病人产生正确的节奏模式，从乐谱。由于节奏处理选择性干扰的听觉模态，心律失常不能归因于超模态的时间处理的损害。相反，我们的研究结果表明，特定的方式编码的音乐时间信息。此外，还提出听觉节奏序列的加工涉及一个特定的左半球颞叶缓冲区。(C)2004 Elsevier Ltd.保留所有权利。
This study examined the musical processing in a professional musician who suffered from amusia after a left temporo-parietal stroke. The patient showed preserved metric judgement and normal performance in all aspects of melodic processing. By contrast, he lost the ability to discriminate or reproduce rhythms. Arrhythmia was only observed in the auditory modality: discrimination of auditorily presented rhythms was severely impaired, whereas performance was normal in the visual modality. Moreover, a length effect was observed in discrimination of rhythm, while this was not the case for melody discrimination. The arrhythmia could not be explained by low-level auditory processing impairments such as interval and length discrimination and the impairment was limited to auditory input, since the patient produced correct rhythmic patterns from a musical score. Since rhythm processing was selectively disturbed in the auditory modality, the arrhythmia cannot be attributed to a impairment of supra-modal temporal processing. Rather, our findings suggest modality-specific encoding of musical temporal information. Besides, it is proposed that the processing of auditory rhythmic sequences involves a specific left hemispheric temporal buffer. (C) 2004 Elsevier Ltd. All rights reserved.