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主观轮廓的研究及其理论 被引量:2
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作者 任旭明 《华南师范大学学报(社会科学版)》 1996年第4期29-34,共6页
主观轮廓是指在物理刺激为同质的视野中知觉到的轮廓,又称认知轮廓或错觉轮廓.斯克曼(Schumann)在1904年首次描述了主观轮廓现象;1955年意大利心理学家凯尼查(Kanizsa)提出了主观轮廓最著名的例证.其后,许多心理学家对主观轮廓现象进行... 主观轮廓是指在物理刺激为同质的视野中知觉到的轮廓,又称认知轮廓或错觉轮廓.斯克曼(Schumann)在1904年首次描述了主观轮廓现象;1955年意大利心理学家凯尼查(Kanizsa)提出了主观轮廓最著名的例证.其后,许多心理学家对主观轮廓现象进行了理论上的解释,提出了众多假说,他们从不同的角度,以不同的手段和方法,试图揭示主观轮廓的形成机制.迄今为止,主观轮廓的理论假说可分为两大类:一为认知解释,认为主观轮廓发生在中枢神经系统,包括格式塔假说、认知假说、深度线索假说等,二为生理解释,认为主观轮廓发生在外周神经系统,包括特征觉察假说、侧抑制明度对比假说,高空间频率过滤假说等. 展开更多
关键词 主观轮廓 认知性理论假说 生理理论假说
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Task Complexity and Second Language Teaching
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作者 GAO Hai-long 《Sino-US English Teaching》 2016年第12期924-927,共4页
In the past few years, the notion of task complexity has been receiving substantial attention in the field of second language acquisition. This paper explores task complexity from the cognitive perspective by analyzin... In the past few years, the notion of task complexity has been receiving substantial attention in the field of second language acquisition. This paper explores task complexity from the cognitive perspective by analyzing two studies with Skehan's limited capacity hypothesis and Robinson's cognition hypothesis. The two studies, namely You-Jin Kim's (2012) and Mirdamadi and Jong (2015), explore on how linguistic complexity affects language performance. Two hypotheses, Skehan's limited capacity hypothesis and Robinson's cognition hypothesis, explain the two studies from the cognitive perspective by predicting either that increasing task complexity reduces a pool of attentional capacity during task performance or that increasing complex tasks promotes greater accuracy and complexity of speech and writing. It is suggested that language teaching, syllabus designing in particular, should be based on the basis of task complexity. 展开更多
关键词 task complexity limited capacity hypothesis cognition hypothesis
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