Crosson B, Warren R L
Cortex. 1981 Jul;17(2):249-58. doi: 10.1016/s0010-9452(81)80045-7.
A dichotic listening task was administered to subjects with a relatively distinct Broca's aphasia, subjects with a relatively distinct Wernicke's aphasia, and normal subjects. The dichotic stimuli consisted of C-V-C words differing in initial consonant only. Subjects were instructed to respond only to the stimulus of which they were most sure by pointing to a picture representing the dichotic stimuli or foils. while normal subjects demonstrated the usual right ear effect, both the Broca's and Wernicke's aphasia groups demonstrated left ear effects. One salient explanation for these results was that any severe defect in the language systems of the left hemisphere affects the way that the left hemisphere processes linguistic information. It was postulated that left ear stimuli, which arrive at the left hemisphere later, disrupt the processing of right ear stimuli in subjects with aphasia. However, a more definitive explanation requires further research.
对患有相对典型的布罗卡失语症的受试者、患有相对典型的韦尼克失语症的受试者以及正常受试者进行了双耳分听任务。双耳刺激由仅在初始辅音上不同的C-V-C单词组成。受试者被指示通过指向代表双耳刺激或陪衬物的图片，仅对他们最确定的刺激做出反应。虽然正常受试者表现出通常的右耳优势，但布罗卡失语症组和韦尼克失语症组都表现出左耳优势。对这些结果的一个突出解释是，左半球语言系统的任何严重缺陷都会影响左半球处理语言信息的方式。据推测，较晚到达左半球的左耳刺激会干扰失语症受试者右耳刺激的处理。然而，更确切的解释需要进一步研究。
