The reversed Simon effect.

= 232 in Experiments 1-3, respectively) performed a standard Simon task. In each experiment, participants were sorted into two groups, based on the direction of the Simon effect (standard vs. reversed). Reaction times and errors were analyzed to investigate the sequential modulation and time course of the Simon effect in each group. Participants with a reversed Simon effect (approximately 10%-15%) displayed systematic inhibition of the spatially corresponding response, resulting in slower responses on corresponding trials. Findings suggested that the reversed Simon effect may reflect a distinct cognitive style or strategy, highlighting the importance of individual differences in cognitive processes and warranting further exploration to understand its permanence and underlying mechanisms. (PsycInfo Database Record (c) 2026 APA, all rights reserved).