Katsuki-Nakamura J, Brookshire R H, Nicholas L E
Kanazawa Medical University, Ishikawa, Japan.
J Speech Hear Disord. 1988 Nov;53(4):408-15. doi: 10.1044/jshd.5304.408.
This study examined the frequently heard claim that aphasic listeners have more difficulty understanding speech in situations where there are multiple speakers than in situations where there is a single speaker. Nine stories about everyday events were written and videotaped as monologues, dialogues with one dominant speaker, and dialogues with both speakers contributing comparable amounts of information. Eighteen aphasic and 9 non-brain-damaged adults watched and listened to the videotapes. Listeners' comprehension and retention of the stories were tested by yes/no questions following each story. The three versions of the stories were understood and remembered equally well by aphasic and non-brain-damaged listeners, suggesting that listening to two speakers does not appreciably increase comprehension difficulty. These results suggest that factors other than the extent to which different speakers contribute to the topic of conversation are responsible for aphasic listeners' reported difficulties in comprehending multiple-speaker conversational interactions.
本研究检验了一个常听到的说法，即失语症患者在有多个说话者的情境中理解言语比在只有一个说话者的情境中更困难。编写了九个关于日常事件的故事，并录制为独白、有一个主导说话者的对话以及两个说话者提供相当信息量的对话。18名失语症患者和9名非脑损伤成年人观看并收听了这些录像带。通过每个故事后的是非题测试听众对故事的理解和记忆。失语症患者和非脑损伤听众对故事的三个版本理解和记忆得同样好，这表明听两个说话者讲话并不会明显增加理解难度。这些结果表明，除了不同说话者对对话主题的贡献程度之外，还有其他因素导致失语症患者在理解多说话者对话互动方面存在困难。
