Exploring semantic and phonological picture-word priming in adults who stutter using event-related potentials.
Exploring semantic and phonological picture-word priming in adults who stutter using event-related potentials.
复制标题
利用事件相关电位探索口吃成年人的语义和语音图词启动。
DOI：
10.1016/j.clinph.2011.10.003
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Constantine,JosephL
中科院分区：
文献类型：
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作者：
Maxfield,NathanD;Pizon-Moore,AngelaA;Frisch,StefanA;Constantine,JosephL
我们的目的是调查语义和语音信息是如何处理的成年人谁口吃（AWS）准备命名图片，后续的报告，事件相关电位（ERP）在AWS证明非典型语义图片词启动（Maxfield等人，2010).方法14名AWS和14名典型流利的成年人（TFA）参加。图片，在一个延迟命名，其次是探测词。Maxfield et al.（2010）中没有使用的设计元素让我们评估语音和语义的图片-单词启动。AWS证明减少语义启动，和反向的语音N400 priming.CONCLUSIONSResults点非典型的语义和语音信息加工在AWS。讨论认为AWS ERP的影响是否反映不稳定的激活目标标签的语义和语音表示，战略抑制目标标签语音邻居，和/或语音标签探针competition. SIGNAIFICANCE结果提出了问题，如何调节激活扩散机制，在AWS中运行。
OBJECTIVEOur aim was to investigate how semantic and phonological information is processed in adults who stutter (AWS) preparing to name pictures, following-up a report that event-related potentials (ERPs) in AWS evidenced atypical semantic picture–word priming (Maxfield et al., 2010).METHODSFourteen AWS and 14 typically-fluent adults (TFA) participated. Pictures, named at a delay, were followed by probe words. Design elements not used in Maxfield et al. (2010) let us evaluate both phonological and semantic picture–word priming.RESULTSTFA evidenced typical priming effects in probe-elicited ERPs. AWS evidenced diminished semantic priming, and reverse phonological N400 priming.CONCLUSIONSResults point to atypical processing of semantic and phonological information in AWS. Discussion considers whether AWS ERP effects reflect unstable activation of target label semantic and phonological representations, strategic inhibition of target label phonological neighbors, and/or phonological label–probe competition.SIGNIFICANCEResults raise questions about how mechanisms that regulate activation spreading operate in AWS.