Submission 498
Does Global Context Shape Local Conflict Adaptation? Evidence Across Timescales.
SymposiumTalk-01
Presented by: Amy Strivens
A central question in cognitive control research is how humans flexibly adjust control in response to changing contextual demands. Such adjustments of control parameters occur across multiple timescales: from the trial-by-trial changes reflected in the congruency sequence effect (CSE) to broader, block-level shifts driven by task composition or switch probability. While local adjustments such as the CSE are well documented, it remains unclear whether global control settings modulate these local processes. This talk explores that question by examining how global context influences local conflict adaptation. Across three task-switching experiments using Flanker tasks, we manipulated the global control settings - via switch probability and use of single and mixed task blocks – to examine their potential influence on the CSE. Experiment 1 varied switch probability to test whether increased control due to frequent task switching leads to a greater CSE effect. Experiment 2 compared single- and mixed-task blocks to replicate and extend prior findings on block-level influences. Experiment 3 combined both manipulations to allow for direct comparison and to assess possible interactions between these two global adjustments. While prior work reported block-level effects on the CSE, this talk will assess whether we could replicate and extend this influence of global manipulations on local adaptation. The present experiments aim to inform models of cognitive control and clarify how cognitive flexibility is organized across different timescales.