Rosenberg B, Zurif E, Brownell H, Garrett M, Bradley D
Brain Lang. 1985 Nov;26(2):287-303. doi: 10.1016/0093-934x(85)90044-6.
Agrammatic, Broca's aphasic patients, Wernicke's aphasic patients, and neurologically intact control subjects were asked to detect target letters in prose passages and in a scrambled word passage. The targets were embedded, in some instances, in content words (open-class vocabulary items), and in other instances, in function words (closed-class vocabulary items). With respect to the prose passages, both the control subjects and Wernicke's aphasic patients were more apt to notice target letters when they appeared in the open-class items than when in closed-class items; by contrast, the agrammatic Broca's patients showed no vocabulary class detection difference. The Wernicke's patients were not entirely normal, however: Whereas the normal subjects showed a much smaller vocabulary class effect for letter detection in the scrambled condition, the Wernicke's maintained the pattern they had shown in the prose condition. These and other findings obtained on the letter cancellation task are discussed in relation to lexical access mechanisms geared to sentence parsing.
语法缺失的布罗卡失语症患者、韦尼克失语症患者以及神经功能正常的对照受试者被要求在散文段落和乱序单词段落中检测目标字母。目标字母在某些情况下嵌入实词（开放类词汇项）中，而在其他情况下嵌入虚词（封闭类词汇项）中。对于散文段落，对照受试者和韦尼克失语症患者在目标字母出现在开放类词汇项中时比出现在封闭类词汇项中时更容易注意到；相比之下，语法缺失的布罗卡患者未表现出词汇类别检测差异。然而，韦尼克患者并不完全正常：正常受试者在乱序条件下字母检测的词汇类别效应要小得多，而韦尼克患者保持了他们在散文条件下所呈现的模式。在字母删除任务中获得的这些及其他发现将结合用于句子解析的词汇通达机制进行讨论。
