学术投稿

语义记忆损伤的检测及神经机制

金花;莫雷;陈卓铭

关键词:记忆, 语义学, 认知
摘要:脑损害患者存在的语义范畴特异性损伤现象激发了人们对语义知识神经表征规则的研究.传统的神经心理学检查法及功能成像技术是研究语义记忆神经基础的主要方法.神经心理学是通过研究患者脑损伤部位与其损伤的语义知识范畴间的关系来推断语义知识的神经基础;而功能成像技术是通过直接检测正常人在提取各范畴语义知识时的脑活动模式来揭示语义知识的神经基础.因此,作为语义记忆探测材料的认知任务的设置直接影响到研究的效度与结果.因各研究所用的认知任务不同,研究结果与结论也呈现出较大的分歧,部分学者认为语义记忆是一单一的统一体,但部分学者认为语义记忆是一由类别子系统或是通道子系统组成的集合体.
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中国组织工程研究杂志

中国组织工程研究杂志

主管:中华人民共和国卫生部

主办:中国康复医学会,《中国组织工程研究与临床康复》杂志社