Control Under Pressure

Paradigm

Participants completed a prime-probe task responding to direction words (up, down, left, right). Each trial showed a prime stimulus followed by a probe stimulus. The probe could either match the prime (congruent) or conflict with it (incongruent), creating four trial-type combinations (cC, cI, iC, iI).

Feedback type (punishment vs. no punishment) and feedback contingency (which trial type received feedback) were manipulated across conditions within subjects. In some conditions incorrect responses triggered monetary loss. In others no punishment was applied. A random punishment condition applied loss independent of performance.

Hypothesis

We expect that reaction time will be modulated by the congruence of the current and previous trials: the congruency sequence effect (CSE). The congruency effect should be smaller after incongruent primes than after congruent primes, reflecting conflict adaptation.

Your Four Decisions

• 1Outlier method: SD filter, accuracy filter, or no filter
• 2Threshold: how strict the exclusion is
• 3RT transformation: log or raw milliseconds
• 4Model structure: random intercept, intercept+slope, or full