关键词: 脑损伤; 神经心理学; 语义学; Logistic模型

Abstract: Objective To investigate the role of object manipulability in semantic category-specific deficits.Methods A brain-injured patient was tested in several tasks(Object decision, picture naming, word-picture verification, naming to definition, attribute judgment, word-word association matching) to assess the living-nonliving dissociation. Logistic regression analysis was conducted to study the role of object manipulability in categorical dissociation.Results In picture naming, word-picture verification, naming to definition and attribute judgment, the patient performed better at nonliving items than at living items(P<0.01). Logistic regression revealed that the predictive role of semantic category for naming accuracy was replaced by object manipulability after the latter was included in the equation(P<0.01).Conclusion The better performance at nonliving items at living items of the patient could be due to his preservation of manipulation knowledge about nonliving things.

Key words: Brain injuries; Neuropsychology; Semantics; Logistic models