Chinese characters elicit face-like N170 inversion effects
Chinese characters elicit face-like N170 inversion effects
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DOI：
10.1016/j.bandc.2011.08.016
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发表时间：
2011-12
影响因子：
2.5
通讯作者：
Man-Ying Wang;Bo-Cheng Kuo;Shih-Kuen Cheng
中科院分区：
文献类型：
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作者：
Man-Ying Wang;Bo-Cheng Kuo;Shih-Kuen Cheng
人脸和汉字的识别通常被认为依赖于构形信息。虽然面孔通常表现出不同于非面孔刺激的行为和N170反转效应（Rossion, Joyce, Cottrell, & Tarr, 2003），但目前的研究考察了对面孔和汉字的相似依赖是否会导致类似的反转效应。被试分别进行取向判断任务（实验1）和反向身份匹配任务（实验2）。在两个实验中，与直立的刺激相比，倒置的脸和复合汉字的N170的大小被延迟和增强。这两种刺激类型的倒置效应在潜伏期上是双侧的，在振幅上是右侧的。对于简单汉字，只有潜伏期反转效应显著。人脸对N170振幅的右半球反转效应大于汉字。这些发现表明，非人脸刺激的N170反转效应与人脸刺激的N170反转效应非常相似。中文复合字引起的N170类人脸反转效应主要是由于部分-整体整合的困难以及反转导致的关系信息的规律性被打乱。还讨论了汉字加工的半球差异。
Recognition of both faces and Chinese characters is commonly believed to rely on configural information. While faces typically exhibit behavioral and N170 inversion effects that differ from non-face stimuli (Rossion, Joyce, Cottrell, & Tarr, 2003), the current study examined whether a similar reliance on configural processing may result in similar inversion effects for faces and Chinese characters. Participants were engaged in an orientation judgment task (Experiment 1) and a one-back identity matching task (Experiment 2). Across two experiments, the N170 was delayed and enhanced in magnitude for upside-down faces and compound Chinese characters, compared to upright stimuli. The inversion effects for these two stimulus categories were bilateral for latency and right-lateralized for amplitudes. For simple Chinese characters, only the latency inversion effects were significant. Moreover, the size of the right-hemisphere inversion effects in N170 amplitude was larger for faces than Chinese characters. These findings show the N170 inversion effects from non-face stimuli closely parallel effects seen with faces. Face-like N170 inversion effects elicited by Chinese compound characters were attributed to the difficulty of part-whole integration as well as the disrupted regularity in relational information due to inversion. Hemispheric difference in Chinese character processing is also discussed.