Proactive engagement of cognitive control modulates implicit approach-avoidance bias.

Area of Science:

• Neuroscience
• Cognitive Psychology
• Social Psychology

Background:

• Implicit social-affective biases influence approach-avoidance behaviors towards positive and negative stimuli.
• The role of preemptive cognitive control in down-regulating these biases is not well understood.

Purpose of the Study:

• To investigate how cognitive control modulates behavioral and neural responses during an approach-avoidance task.
• To examine the neural mechanisms underlying the regulation of social-affective biases.

Main Methods:

• Functional magnetic resonance imaging (fMRI) was used in 24 healthy participants.
• A cued Approach-Avoidance Task (AAT) involved responding to happy/angry faces by moving a joystick.
• Cues instructed participants to reverse the standard frame color/joystick action rules.

Main Results:

• Pre-stimulus reverse cues deactivated visuo-spatial/motor networks and slowed responses.
• During stimulus presentation, reverse cues activated cognitive control regions (right IFG, IPL).
• Cognitive control engagement reduced right precentral gyrus activation when avoiding happy faces.

Conclusions:

• Proactively engaging cognitive control facilitates behavioral and neural adjustments to emotionally incongruent situations.
• Cognitive control plays a crucial role in fine-tuning responses to social-affective stimuli.
• Findings highlight the brain's capacity to regulate automatic approach-avoidance tendencies.