Commentary on Lu: A dual-route processing architecture for stimulus-response correspondence effects

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Publisher Summary

The term “stimulus–response correspondence effects” refers to the effects on response speed of the correspondence relations as they exist between stimulus aspects and response aspects. Thus, the requirement to respond with the effector on the side opposite to, rather than on, the side that corresponds spatially to the side of stimulation yields a substantial increase in reaction time (RT). If one stimulus attribute is designated the target attribute (with each possible value of that attribute associated with one particular response), other stimulus attributes are designated irrelevant but may also have a correspondence relation with the required response. Under some conditions, relevant and irrelevant stimulus aspects not only have correspondence relations with the response, but also with each other. In recent years, dual-process conceptions of how perceptual codes lead to the activation of the correct response have become increasingly popular. In such conceptions, perception-action coupling can be established via two parallel routes, one controlled and deliberate and the other fast, direct, and more or less automatic.

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