The effect of time course and context on the facilitation of semantic features in the cerebral hemispheres
The effect of time course and context on the facilitation of semantic features in the cerebral hemispheres
复制标题
DOI：
10.1037/0894-4105.13.3.389
复制
发表时间：
1999-07-01
期刊：
影响因子：
2.4
通讯作者：
Keeney, M
中科院分区：
文献类型：
--
作者：
Atchley, RA;Burgess, C;Keeney, M
设计了两个分域启动实验，通过研究无歧义名词语义特征的易化来确定大脑半球词汇检索的性质。无歧义名词具有单一意义，但与这些名词相关的语义特征可能在与该单一意义兼容的程度上有所不同（例如，LAMB-WOOL与LAMB-CHOPS相比）。结果表明，左脑半球选择了与名词的主导表征相容的强关联和弱关联语义特征。优势相容性，而不是联想强度，似乎是决定左半球维持哪些特征的更重要因素。相比之下，右半球保留了更多不同的信息，包括与主导表征（实验1）和上下文信息（实验2）不太兼容的特征。
Two divided visual field priming experiments were designed to determine the nature of lexical retrieval in the cerebral hemispheres by studying the facilitation of semantic features of unambiguous nouns. Unambiguous nouns have a single meaning, yet semantic features associated with these nouns may vary in the degree to which they are compatible with this single meaning (e.g., LAMB-WOOL as compared with LAMB-CHOPS). Results suggest that the left hemisphere selects both strongly and weakly associated semantic features that are compatible with the dominant representation of the noun. Dominance compatibility, rather than association strength, seems to be the more important factor for deciding what features are maintained in the left hemisphere. In contrast, the right hemisphere maintains more varied information, including features that are less compatible with the dominant representation (Experiment 1) and context information (Experiment 2).