Caplan D, Waters G S
Neuropsychology Laboratory, Massachusetts General Hospital, Boston 02114, USA.
Brain Lang. 1995 Feb;48(2):191-220. doi: 10.1006/brln.1995.1009.
This paper describes the performance of an aphasic patient, R.W., in producing the sounds of words and in verbal rehearsal. R.W. showed evidence of retained abilities to access aspects of the forms of spoken words but made numerous phonemic paraphasias in single word production tasks. He did not show features of dysarthria or apraxia of speech. This pattern indicates that his deficit affected a process that plans the phonological forms of spoken words. R.W.'s performances in short-term memory and metalinguistic tasks involving single words were consistent with impaired rehearsal functions. The pattern of results indicates that rehearsal requires planning of the phonological forms of spoken items and suggests that activating entries in the phonological output lexicon is not adequate to permit rehearsal to proceed normally.
本文描述了失语症患者R.W.在发出单词声音和进行言语复述方面的表现。R.W.表现出能够提取口语单词形式方面的保留能力，但在单字生成任务中出现了大量音素性错语。他没有表现出构音障碍或言语失用症的特征。这种模式表明他的缺陷影响了一个规划口语单词语音形式的过程。R.W.在涉及单字的短期记忆和元语言任务中的表现与复述功能受损一致。结果模式表明，复述需要规划口语项目的语音形式，并表明激活语音输出词典中的词条不足以使复述正常进行。
