Smith S R, Murdoch B E, Chenery H J
Department of Speech and Hearing, University of Queensland, St. Lucia, Australia.
Brain Lang. 1989 Feb;36(2):314-24. doi: 10.1016/0093-934x(89)90068-0.
The lexical semantic abilities of 18 Alzheimer patients were investigated using confrontation naming tasks (including both visual and tactile naming tests) and compared to those of a group of institutionalized, nonneurologically impaired control subjects matched for age, sex, and educational level. The Alzheimer patients produced a greater number of naming errors than the control subjects. The errors made by subjects during the naming tasks were analyzed according to a set of 16 error response types. The Alzheimer patients' response patterns suggest that they do recognize objects which they are unable to name and are able to identify the semantic class to which the target belongs, but cannot provide the lexeme corresponding to the correct individual class member. The results support a semantic network disruption rather than a visual perceptual deficit as the basis of the naming disturbance observed in Alzheimer patients.
使用对答命名任务（包括视觉和触觉命名测试）对18名阿尔茨海默病患者的词汇语义能力进行了研究，并与一组年龄、性别和教育水平相匹配的、未患神经疾病的机构化对照受试者进行了比较。与对照受试者相比，阿尔茨海默病患者产生的命名错误更多。根据一组16种错误反应类型，对受试者在命名任务中出现的错误进行了分析。阿尔茨海默病患者的反应模式表明，他们确实能识别出自己无法命名的物体，并且能够识别目标所属的语义类别，但无法提供与正确的个体类别成员相对应的词位。这些结果支持了语义网络中断而非视觉感知缺陷是阿尔茨海默病患者命名障碍基础的观点。
