Abstract
We investigated the effects of handedness on developing latent cognitive response strategies according to situation variables. We used the findings of the block-wise Proportion Congruency (PC) effect in which the proportion of congruent trials in a given block modulates the compatibility effect in its block. The block-wise PC effect cannot be intentionally controlled. A Simon task with three different types of Proportion Congruency (PC) in a given block was used to measure the block-wise PC effects. This task was administered to 24 left-handed and 24 right-handed participants. The reaction time and error rates, consistent with previous studies, demonstrated that the block-wise PC effect was observed in left- and right-handers. Crucially, the block-wise PC effect was more pronounced in left- than right-handers, suggesting that left- and right-handers unintentionally apply different cognitive strategies in response to conflict resolution experiences.
Highlights
The dominant hand allows us to conduct daily life tasks more efficiently
The purpose of this study was to examine the effect of handedness on cognitive control, especially implicitly applying situational cognitive strategies, by measuring the extent to which unintentional different cognitive strategies are applied in response to situational factors
We investigated the effect of handedness on unintentional cognitive strategy application in response to situational demands by focusing on the Simon effect’s modulation based on the block-wise proportion congruency
Summary
The dominant hand allows us to conduct daily life tasks more efficiently. This efficiency reflects underlying neurological differences [1]. Two aspects of cognitive control have been proposed, and the balance between them is considered sensitive to individual differences [7] [8]. These aspects are stability, the ability to protect the current goal from disturbing information during task execution, and flexibility, which is the ability to respond sensitively to disturbing information and switch targets
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