Immediate action effects motivate actions based on the stimulus-response relationship

Area of Science:

• Cognitive Psychology
• Neuroscience
• Action Planning

Background:

• The theory of event coding posits that action effects drive responses after integrating stimulus, response, and effect into an event file.
• Previous research showed immediate action effects (feedback) elicit faster responses than delayed effects.
• The precise mechanism, particularly the role of stimuli, in this facilitation remains unclear.

Purpose of the Study:

• To investigate the underlying mechanism of immediate action effect facilitation on response speed.
• To determine if stimuli play a role in the facilitation effect.
• To differentiate between direct motor action reinforcement and stimulus-response relationship modulation.

Main Methods:

• Reproduced immediate action effect facilitation using between- and within-participant designs.
• Assessed facilitation when stimuli alone determined action effect delay (Experiment 3).
• Assessed facilitation when stimuli and responses together determined action effect delay (Experiment 4).

Main Results:

• Immediate action effects facilitated response speed, confirming previous findings.
• Facilitation occurred when stimuli were associated with immediate effects compared to lagged effects.
• Response speed was enhanced based on the stimulus-response relationship, not direct motor action reinforcement.

Conclusions:

• Immediate action effects facilitate response speed by modulating the stimulus-response relationship.
• The findings suggest that stimuli are crucial mediators in the facilitatory effect of action consequences.
• This research refines the understanding of event coding theory and action planning mechanisms.