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. 2006 Jun;34(4):949-58.
doi: 10.3758/bf03193440.

Effects of precuing horizontal and vertical dimensions on right-left prevalence

Robert W Proctor  1 , Iring Koch, Kim-Phuong L Vu
Affiliations

Effects of precuing horizontal and vertical dimensions on right-left prevalence

Robert W Proctor et al. Mem Cognit. 2006 Jun.

Abstract

When stimuli and responses can be coded along horizontal and vertical dimensions simultaneously, a right-left prevalence effect is often obtained for which the advantage for a compatible mapping is larger on the horizontal dimension than on the vertical dimension. The present study investigated the role of preparatory processes in this right-left prevalence effect using a method in which the relevant dimension was cued at short and long intervals prior to presentation of the target stimulus. In three experiments, the right-left prevalence effect did not vary significantly in magnitude as a function of cue-target interval, suggesting that the effect is due primarily to relative salience of the horizontal and vertical codes, as determined by the task structure, and not to a greater ease of attending to the horizontal dimension.

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