Semantic integration in videos of real-world events: An electrophysiological investigation
Semantic integration in videos of real-world events: An electrophysiological investigation
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DOI：
10.1111/1469-8986.00016
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发表时间：
2003-01-01
期刊：
影响因子：
3.7
通讯作者：
Holcomb, PJ
中科院分区：
文献类型：
--
作者：
Sitnikova, T;Kuperberg, G;Holcomb, PJ
事件相关电位（event - relevant potential, ERPs）可以区分出现在普通活动视频片段中的情境适当和情境不适当的对象。不一致的物体引起了更大的负向偏转，这类似于之前描述的与文字和静态图片相关的N400成分，并且被认为反映了语义信息整合到前一个上下文的心理表征中。这种潜能发生在物体呈现后不久，表明语义整合是现实世界感知的快速在线组成部分。此外，电影中的异常现象在脑后区域诱发了大量的后期正电位，表明在事件知觉中，语义不一致可能触发了非单纯语义整合的认知过程。
Event-related potentials (ERPs) discriminated between contextually appropriate and inappropriate objects appearing in video film clips of common activities. Incongruent objects elicited a larger negative-going deflection which was similar to the N400 component described previously in association with words and static pictures and which has been argued to reflect the integration of semantic information into a mental representation of the preceding context. The onset of this potential occurred shortly after object presentation, indicating that semantic integration is a rapid online component of real-world perception. In addition, the anomalies in movies evoked a large late positive potential at posterior regions, suggesting that in event perception, semantic incongruity may trigger cognitive processes other than those mediating pure semantic integration.