Yaqub B A, Gascon G G, Al-Nosha M, Whitaker H
King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia.
Brain. 1988 Apr;111 ( Pt 2):457-66. doi: 10.1093/brain/111.2.457.
A 38-year-old, right-handed Arabic-speaking male developed pure word deafness three days after myocardial infarction. He could recognize Arabic music and instruments but not words of songs; a radio broadcast from the Koran, but not the individual words; a male as opposed to female voice; Arabic and non-Arabic languages; and whether sentences were questions, exclamations, or imperatives. He discerned whether the speaker was emotionally neutral, happy, angry or sad. Contextual cues and reducing the rate of speaking aided verbal comprehension. Pure tone threshhold audiometry revealed mild bilateral sensorineural loss up to 2000 Hz and a moderate high frequency loss. Brainstem auditory evoked potentials were normal, cortical auditory evoked potentials abnormal. CT scan revealed bilateral infarcts subcortically just posterior to the left superior temporal gyrus and the right posterior superior and midtemporal regions. Neurolinguistic tests indicated that the deficit is prephonemic and not due to impairment of linguistic discrimination.
一名38岁、惯用右手、讲阿拉伯语的男性在心肌梗死后三天出现了纯词聋。他能识别阿拉伯音乐和乐器，但听不懂歌曲中的歌词；能听懂《古兰经》的广播，但听不懂其中的单个词语；能区分男性和女性的声音；能区分阿拉伯语和非阿拉伯语；能判断句子是疑问句、感叹句还是祈使句。他能辨别说话者情绪是否中立、高兴、愤怒或悲伤。上下文线索和降低语速有助于言语理解。纯音阈值听力测试显示，双侧轻度感音神经性听力损失高达2000赫兹，高频中度损失。脑干听觉诱发电位正常，皮质听觉诱发电位异常。CT扫描显示，双侧梗死位于左颞上回后方的皮质下以及右后颞上回和颞中区域。神经语言学测试表明，这种缺陷是音素前的，并非由于语言辨别能力受损所致。
