Department of Communication Arts, Sciences, and Disorders, Brooklyn College / CUNY, 2900 Bedford Avenue, Brooklyn, NY 11210, United States; Brain and Behavior Laboratory, Geriatrics Division, Nathan Kline Institute for Psychiatric Research, 140 Old Orangeburg Road, Building 35, Orangeburg, NY 10962, United States.
J Commun Disord. 2022 Jul-Aug;98:106229. doi: 10.1016/j.jcomdis.2022.106229. Epub 2022 Jun 3.
Sarcasm, prevalent in everyday conversation, refers to the use of words that express negative attitudes toward persons or events. Acoustic cues associated with sarcasm have been reported to vary across studies and the relative importance of particular acoustic parameters for signaling sarcasm has not been fully determined. The hemispheric specialization for the production of acoustic cues has been a matter of controversy. This study investigated the possible prosodic cues associated with Korean sarcastic utterances and the differential effect of left hemisphere damage (LHD) or right hemisphere damage (RHD) on the production of acoustic features of Korean sarcastic utterances.
Twenty one native speakers of Korean (7 individuals with LHD, 7 individuals with RHD, and 7 healthy controls (HC)) produced six Korean utterances in two different modes: sarcastic and literal. Utterances validated by sarcasm ratings by native listeners were analyzed acoustically utilizing durational and fundamental frequency (F0) measures.
Listeners' ratings and acoustic analyses indicated that sarcastic utterances in Korean were produced with a combination of multiple acoustic cues. Discriminant function analyses and multiple linear regression showed that LHD and RHD differentially affected the production of acoustic cues associated with sarcasm.
LHD negatively affects the production of durational cues, while RHD negatively affects the production of F0 cues.
反讽在日常会话中很常见，是指使用表达对人或事的负面态度的词语。反讽的声学线索在不同的研究中有所不同，对于信号反讽的特定声学参数的相对重要性尚未完全确定。半球对声学线索的产生的专业化一直存在争议。本研究调查了与韩语反讽话语相关的可能韵律线索，以及左半球损伤（LHD）或右半球损伤（RHD）对韩语反讽话语声学特征产生的差异影响。
21 名母语为韩语的人（7 名左半球损伤者、7 名右半球损伤者和 7 名健康对照组）以两种不同模式（讽刺和字面）说出 6 个韩语句子。通过母语听众的反讽评分验证的句子进行声学分析，利用时长和基频（F0）测量。
听众的评分和声学分析表明，韩语中的反讽句子是通过多种声学线索的组合产生的。判别函数分析和多元线性回归表明，LHD 和 RHD 对与反讽相关的声学线索的产生有不同的影响。
LHD 会对时长线索的产生产生负面影响，而 RHD 会对 F0 线索的产生产生负面影响。
