Task switching and response correspondence in the psychological refractory period paradigm
Task switching and response correspondence in the psychological refractory period paradigm
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DOI：
10.1037/0096-1523.29.3.692
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发表时间：
2003-06-01
影响因子：
2.1
通讯作者：
Proctor, RW
中科院分区：
文献类型：
--
作者：
Lien, MC;Schweickert, R;Proctor, RW
三个实验在心理不应期范式下考察了任务转换和反应一致性的影响。每个试验中，字母任务（元音-辅音）和数字任务（奇偶）组合成4个可能的双任务对：字母-字母、字母-数字、数字-数字和数字-字母。任务转换（重复或开关）和任务身份（字母或数字）的预知不同的实验：在实验1中没有预知，部分预知（任务转换只）在实验2中，和充分的预知在实验3。对于所有的实验中，任务2的开关成本是加性的刺激发作的时间，和任务2的响应对应的效果是在数字上小于开关条件比在重复条件。这些结果表明，任务2的重新配置发生后，中央处理的任务I和串扰对应的效果是由于响应激活的方式刺激-响应协会。
Three experiments examined the effects of task switching and response correspondence in a psychological refractory period paradigm. A letter task (vowel-consonant) and a digit task (odd-even) were combined to form 4 possible dual-task pairs in each trial: letter-letter, letter-digit, digit-digit, and digit-letter. Foreknowledge of task transition (repeat or switch) and task identity (letter or digit) was varied across experiments: no foreknowledge in Experiment 1, partial foreknowledge (task transition only) in Experiment 2, and full foreknowledge in Experiment 3. For all experiments, the switch cost for Task 2 was additive with stimulus onset asynchrony, and the response-correspondence effect for Task 2 was numerically smaller in the switch condition than in the repeat condition. These outcomes suggest that reconfiguration for Task 2 takes place after the central processing of Task I and that the crosstalk correspondence effect is due to response activation by way of stimulus-response associations.