A feature-integration account of sequential effects in the Simon task
A feature-integration account of sequential effects in the Simon task
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DOI：
10.1007/s00426-003-0132-y
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发表时间：
2004-02-01
影响因子：
2.3
通讯作者：
Vu, KPL
中科院分区：
文献类型：
--
作者：
Hommel, B;Proctor, RW;Vu, KPL
最近的研究表明，不相关的空间刺激-反应（S-R）对应（即，西蒙效应）只发生在刺激和反应位置相对应的试验之后。这已被归因于门控不相关的信息或抑制的自动S-R路线后，经历了一个noncorresponding审判的挑战，空间刺激和反应代码之间的直接，故意无中介联系的广泛假设。然而，在西蒙任务中的试验序列可能会产生刺激和响应功能集成的效果，可能会模仿西蒙效应的顺序依赖性。四个实验证实，西蒙效应被消除，如果前面的试验涉及一个noncorresponding S-R对。然而，即使先前的反应不依赖于先前的刺激，或者先前的试验根本不需要反应，这也是正确的。这些发现排除了将顺序依赖性归因于响应选择困难的门控/抑制解释。此外，他们是一致的功能集成的方法，并表明占西蒙效应的顺序依赖性不需要假设的信息门控或响应抑制。
Recent studies have shown that the effects of irrelevant spatial stimulus-response (S-R) correspondence (i.e., the Simon effect) occur only after trials in which the stimulus and response locations corresponded. This has been attributed to the gating of irrelevant information or the suppression of an automatic S-R route after experiencing a noncorresponding trial-a challenge to the widespread assumption of direct, intentionally unmediated links between spatial stimulus and response codes. However, trial sequences in a Simon task are likely to produce effects of stimulus- and response-feature integration that may mimic the sequential dependencies of Simon effects. Four experiments confirmed that Simon effects are eliminated if the preceding trial involved a noncorresponding S-R pair. However, this was true even when the preceding response did not depend on the preceding stimulus or if the preceding trial required no response at all. These findings rule out gating/suppression accounts that attribute sequential dependencies to response selection difficulties. Moreover, they are consistent with a feature-integration approach and demonstrate that accounting for the sequential dependencies of Simon effects does not require the assumption of information gating or response suppression.