Theta and beta synchrony coordinate frontal eye fields and anterior cingulate cortex during sensorimotor mapping

Area of Science:

• Neuroscience
• Cognitive Neuroscience
• Systems Neuroscience

Background:

• Frontal eye fields (FEFs) and anterior cingulate cortex (ACC) are coactivated during cognitive saccade tasks.
• The precise role of this coactivation in sensorimotor mapping remains unclear.

Purpose of the Study:

• To investigate the coordination between ACC and FEF circuits during cognitive saccade tasks.
• To determine if phase synchronization underlies successful sensorimotor mapping guidance.

Main Methods:

• Utilized macaque monkeys performing memory-guided and pro-/anti-saccade tasks.
• Analyzed local field potential and neural spiking activity for phase synchronization.
• Employed Granger causality to assess directional influence between ACC and FEF.

Main Results:

• Prominent theta (3-9 Hz) and beta (12-30 Hz) band synchronization observed between ACC and FEF during task preparation.
• A significant Granger-causal influence from ACC to FEF was detected.
• The strength of theta and beta band coherence, not power variations, predicted correct task performance.

Conclusions:

• Results support a role for the ACC in the cognitive control of frontoparietal networks.
• Narrow-band theta and beta rhythmic activity indicate information coordination during high cognitive demand.
• Suggests ACC-FEF synchronization is crucial for successful cognitive saccade task execution.