左半球中风患者在词汇判断任务中语义启动效应的异质性。
Heterogeneity in semantic priming effect with a lexical decision task in patients after left hemisphere stroke.
作者信息
Holderbaum Candice Steffen, Mansur Letícia Lessa, de Salles Jerusa Fumagalli
机构信息
PhD in Psychology (UFRGS) - Post-Graduation Program in Psychology, Federal University of Rio Grande do Sul (UFRGS).
PhD in Linguistics (University of São Paulo) - Associate Professor of the University of São Paulo.
出版信息
Dement Neuropsychol. 2016 Apr-Jun;10(2):91-97. doi: 10.1590/S1980-5764-2016DN1002004.
Investigations on the semantic priming effect (SPE) in patients after left hemisphere (LH) lesions have shown disparities that may be explained by the variability in performance found among patients. The aim of the present study was to verify the existence of subgroups of patients after LH stroke by searching for dissociations between performance on the lexical decision task based on the semantic priming paradigm and performance on direct memory, semantic association and language tasks. All 17 patients with LH lesions after stroke (ten non-fluent aphasics and seven non aphasics) were analyzed individually. Results indicated the presence of three groups of patients according to SPE: one exhibiting SPE at both stimulus onset asynchronies (SOAs), one with SPE only at long SOA, and another, larger group with no SPE.
对左半球（LH）损伤患者语义启动效应（SPE）的研究显示出差异，这些差异可能由患者之间表现的变异性来解释。本研究的目的是通过寻找基于语义启动范式的词汇判断任务表现与直接记忆、语义联想和语言任务表现之间的分离，来验证LH中风后患者亚组的存在。对所有17例中风后LH损伤患者（10例非流利性失语症患者和7例非失语症患者）进行了个体分析。结果根据SPE表明存在三组患者：一组在两个刺激起始异步（SOA）时均表现出SPE，一组仅在长SOA时表现出SPE，另一组更大的组则没有SPE。
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