Sequential effects in the Simon task: Conflict adaptation or feature integration?
Sequential effects in the Simon task: Conflict adaptation or feature integration?
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DOI：
10.1016/j.brainres.2009.08.003
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发表时间：
2009-10-22
期刊：
影响因子：
2.9
通讯作者：
Melara, Robert D.
中科院分区：
文献类型：
--
作者：
Chen, Sufen;Melara, Robert D.
顺序效应--在不一致的试验后减少行为干扰--提供了一个独特的机会来检验以前的经验对当前注意处理的影响。我们对Simon范式中的绩效进行了理论分析，以区分注意账户(冲突适应)和工作记忆账户(特征整合)。结果支持记忆账户。特征解绑对序列效应有显著贡献，即使在统计上与Simon冲突的影响分开时也是如此。对中性刺激的顺序效应与对Simon刺激的顺序效应相当，这表明冲突适应至多只有很小的贡献。这些模式出现在行为数据(反应时间和准确性)和两个事件相关电位成分中：N_2和P_2(刺激开始后480-520毫秒的缓慢阳性)。他们认为，序列效应是由工作记忆中S-R特征的部分错配引起的。(C)2009爱思唯尔B.V.保留所有权利
Sequential effects-reduced behavioral interference after incongruent trials-provide a unique opportunity to examine the influence of previous experience on current attentional processing. We conducted a theoretical analysis of performance in the Simon paradigm to distinguish an attention account (conflict adaptation) from a working memory account (feature integration). Results supported the memory account. Feature unbinding contributed significantly to sequential effects, even when separated statistically from the effects of Simon conflict. Sequential effects to neutral stimuli were comparable to those found with Simon stimuli, suggesting at most a minor contribution from conflict adaptation. These patterns emerged in behavioral data (reaction time and accuracy) and in two event-related potential components: N2 and SP (a slow positivity 480-520 ms after stimulus onset). They suggest that sequential effects arise from the partial mismatch of S-R features in working memory. (c) 2009 Elsevier B.V. All rights reserved