Structure and deterioration of semantic memory: A neuropsychological and computational investigation
Structure and deterioration of semantic memory: A neuropsychological and computational investigation
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DOI：
10.1037/0033-295x.111.1.205
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发表时间：
2004-01-01
影响因子：
5.4
通讯作者：
Patterson, K
中科院分区：
文献类型：
--
作者：
Rogers, TT;Ralph, MAL;Patterson, K
Wernicke（1900），as cited in G. H. Eggert，1977）认为，语义知识产生于物体和词语的知觉表征的相互作用。作者提出了一个并行分布式处理实现这一理论，其中语义表示出现的机制，获得对象的视觉表示和他们的口头描述之间的映射。为了测试这一理论，他们训练模型将名称、口头描述和物体的视觉表示联系起来。当它的输入和输出被构造为捕获属性规范化实验中明显的结构方面时，该模型提供了语义任务性能的直观描述。然后，作者使用该模型来了解选择性和进行性概念知识障碍患者的受损表现结构。从4个著名的语义任务的数据显示一致的模式，找到一个现成的解释模型。讨论了该模型与语义表示相关理论的关系。
Wernicke (1900, as cited in G. H. Eggert, 1977) suggested that semantic knowledge arises from the interaction of perceptual representations of objects and words. The authors present a parallel distributed processing implementation of this theory, in which semantic representations emerge from mechanisms that acquire the mappings between visual representations of objects and their verbal descriptions. To test the theory, they trained the model to associate names, verbal descriptions, and visual representations of objects. When its inputs and outputs are constructed to capture aspects of structure apparent in attribute-norming experiments, the model provides an intuitive account of semantic task performance. The authors then used the model to understand the structure of impaired performance in patients with selective and progressive impairments of conceptual knowledge. Data from 4 well-known semantic tasks revealed consistent patterns that find a ready explanation in the model. The relationship between the model and related theories of semantic representation is discussed.