Tanaka Y, Yamadori A, Mori E
Brain. 1987 Apr;110 ( Pt 2):381-403. doi: 10.1093/brain/110.2.381.
A detailed clinical and psychophysical study of a woman who had developed pure word deafness associated with amusia after bilateral temporoparietal destructions is reported. The patient had a defect in temporal resolution encompassing auditory, visual and somatosensory modalities, but the clinical defect was limited to the auditory sphere. Auditory comprehension did not improve even if she was spoken to slowly, although marked improvement of temporal resolution was observed as the duration of a nonlinguistic sound was extended. Also, she exhibited a supramodal defect in the perception and reproduction of rhythm, which was rate-dependent. These and other findings led to the following conclusions: the auditory modality is much more dependent on temporal resolution than other sensory modalities; for a full understanding of the mechanism of pure word deafness, not only the defect of temporal resolution but also many other factors, for example, defective discrimination of loudness, pitch or tone duration have to be taken into consideration; and rhythm sense strongly depends on a supramodal capacity of temporal resolution.
本文报告了对一名双侧颞顶叶受损后出现纯词聋并伴有失乐感的女性进行的详细临床和心理物理学研究。该患者在包括听觉、视觉和体感模态的时间分辨率方面存在缺陷，但临床缺陷仅限于听觉领域。即使对她缓慢说话，其听觉理解能力也没有改善，尽管随着非语言声音持续时间的延长，时间分辨率有明显改善。此外，她在节奏的感知和再现方面表现出一种超模态缺陷，且这种缺陷与速率有关。这些及其他发现得出了以下结论：听觉模态比其他感觉模态更依赖时间分辨率；为全面理解纯词聋的机制，不仅要考虑时间分辨率缺陷，还必须考虑许多其他因素，例如响度、音高或音调持续时间的辨别缺陷；并且节奏感强烈依赖于时间分辨率的超模态能力。
