Multiple Routes to Control in the Prime-Target Task: Congruence Sequence Effects Emerge Due to Modulation of...

Area of Science:

• Cognitive Psychology
• Neuroscience
• Experimental Psychology

Background:

• The congruence sequence effect (CSE) demonstrates that cognitive control is influenced by preceding trial types.
• Existing theories offer differing explanations for when and how cognitive control is implemented during interference tasks.
• The prime-target task provides a framework to investigate the timing and mechanisms of control modulation.

Purpose of the Study:

• To determine when cognitive control is exerted in the prime-target task.
• To investigate the mechanisms (perceptual vs. temporal) through which cognitive control operates.
• To differentiate between early prime and late target modulation of control.

Main Methods:

• Two experiments utilized a prime-target task involving arrow primes and letter targets.
• The temporal order of prime and target presentation was manipulated (prime→target vs. target→prime).
• The CSE was assessed across different trial-type transitions to infer control mechanisms.

Main Results:

• A larger CSE was observed for prime→target trials compared to target→prime trials, indicating earlier control modulation.
• The CSE was greater when the prime-target order repeated across consecutive trials, suggesting temporal selection.
• Control mechanisms in the prime-target task appear to modulate prime processing and utilize temporal sequence information.

Conclusions:

• Cognitive control in the prime-target task is primarily exerted during the early prime presentation phase.
• Temporal selection, based on the order of stimuli, is a key mechanism employed by cognitive control.
• Findings contribute to understanding the dynamics and implementation of cognitive control in sequential tasks.