Praamstra P, Hagoort P, Maassen B, Crul T
Institute of Neurology, University Hospital Nijmegen, The Netherlands.
Brain. 1991 Jun;114 ( Pt 3):1197-225. doi: 10.1093/brain/114.3.1197.
A patient who already had Wernicke's aphasia due to a left temporal lobe lesion suffered a severe deterioration specifically of auditory language comprehension, subsequent to right temporal lobe infarction. A detailed comparison of his new condition with his language status before the second stroke revealed that the newly acquired deficit was limited to tasks related to auditory input. Further investigations demonstrated a speech perceptual disorder, which we analysed as due to deficits both at the level of general auditory processes and at the level of phonetic analysis. We discuss some arguments related to hemisphere specialization of phonetic processing and to the disconnection explanation of word deafness that support the hypothesis of word deafness being generally caused by mixed deficits.
一名因左侧颞叶病变已患有韦尼克失语症的患者，在右侧颞叶梗死之后，听觉语言理解能力出现严重恶化。将其新状况与第二次中风前的语言状态进行详细比较后发现，新出现的缺陷仅限于与听觉输入相关的任务。进一步调查显示存在言语感知障碍，我们分析这是由于一般听觉处理层面和语音分析层面的缺陷共同导致的。我们讨论了一些与语音处理的半球特化以及词聋的失连接解释相关的论据，这些论据支持词聋通常由混合缺陷引起这一假说。
