Distinguishing common and task-specific processes in word identification: A matter of some moment?
Distinguishing common and task-specific processes in word identification: A matter of some moment?
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DOI：
10.1037//0278-7393.27.2.514
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发表时间：
2001-03-01
影响因子：
2.6
通讯作者：
Heathcote, A
中科院分区：
文献类型：
--
作者：
Andrews, S;Heathcote, A
将相同的500个单词分为6个不同的单词识别任务（实验1：词汇决策、语义分类和3个快速命名任务；实验2：延迟命名任务），估计每个任务的反应时间（RT）分布，并分析词频和活跃度对RT分布各参数的影响。除了延迟命名外，在所有任务中，低频词比高频词产生了更多的偏态分布。差异偏差在需要词法辨别的任务中最为明显。语义分类任务对所有单词产生了高度偏态分布，但词频效应是由于RT分布位置的变化而不是偏态的变化。研究结果用于评估通用词法访问过程和任务特定过程对词法识别和命名任务性能的相对贡献。
The same 500 words were presented in 6 different word identification tasks (Experiment 1: lexical decision, semantic categorization, and 3 speeded naming tasks; Experiment 2: delayed naming), Reaction time (RT) distributions were estimated for each task and analyses tested for the effects of word frequency and animacy on various parameters of the RT distribution. Low frequency words yielded more skewed distributions than high frequency words in all tasks except delayed naming. The differential skew was most marked for tasks that required lexical discrimination, The semantic categorization task yielded highly skewed distributions for all words, but the word frequency effect was due to shifts in the location of the RT distributions rather than changes in skew. The results are used to evaluate the relative contributions of a common lexical access process and task-specific processes to performance in lexical discrimination and naming tasks.