Measso G, Zaidel E
Department of Psychology, University of California, Los Angeles 90024.
Neuropsychologia. 1990;28(7):635-46. doi: 10.1016/0028-3932(90)90118-8.
A lateralized tachistoscopic lexical decision task with concrete nouns and orthographically regular nonwords was administered to normal subjects in three conditions using unimanual responses: Yes-No, Go-NoGo with nonword targets, and Go-NoGo with word targets. There was an overall right visual field advantage in accuracy and sensitivity, an interaction between visual hemifield and wordness in latency, and an overall "word" bias. No effect interacted with experimental conditions, showing that response programming did not affect hemispheric asymmetries. The data suggest independent lexical access and similar response programming in each hemisphere. These results are examined in light of three psycholinguistic models of lexical access and are interpreted to support instead a fourth one which posits separate and parallel computations for word decisions and for nonword decisions in each hemisphere.
使用单手反应，在三种条件下对正常受试者进行了一项侧化速示器词汇判断任务，该任务涉及具体名词和正字法规则的非词：是-否、以非词为目标的Go-NoGo以及以词为目标的Go-NoGo。在准确性和敏感性方面总体上存在右视野优势，在潜伏期方面视觉半视野与词汇性之间存在交互作用，并且总体上存在“词”偏向。没有效应与实验条件相互作用，表明反应编程不影响半球不对称性。数据表明每个半球有独立的词汇通达和相似的反应编程。根据三种词汇通达的心理语言学模型对这些结果进行了检验，并被解释为支持第四种模型，该模型假定每个半球在词判断和非词判断方面进行单独且并行的计算。
