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Widespread theta coherence during spatial cognitive control.

John C Myers1, Lisa K Chinn2, Sandeepa Sur3

  • 1Department of Psychology, Tulane University, New Orleans, LA, 70118, USA; Department of Psychology, University of Texas, San Antonio, TX, 78249, USA; Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030, USA.

Neuropsychologia
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Summary
This summary is machine-generated.

This study reveals that brain regions like the medial prefrontal cortex (mPFC) and anterior cingulate cortex (ACC) coordinate via theta coherence to enable cognitive control. This brain network coordination is crucial for efficient information processing and task performance.

Keywords:
Cognitive controlNeuronal coherenceSpatial attentionTheta oscillations

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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience

Background:

  • Cognitive control is essential for filtering relevant stimuli and ignoring distractions.
  • While frontal regions (mPFC, ACC) are implicated, the temporal dynamics of large-scale neural networks remain unclear.

Purpose of the Study:

  • To investigate the temporal coordination of neural oscillations between frontal, parietal, sensory, and motor areas during spatial cognitive control.
  • To elucidate the role of theta coherence in mediating cognitive control.

Main Methods:

  • Electroencephalography (EEG) with source localization was employed.
  • Theta band (3-8 Hz) coherence was analyzed between key brain regions, including mPFC and ACC.
  • Relationships between neural coordination, task difficulty, reaction time, and accuracy were examined.

Main Results:

  • Theta coherence between the mPFC and ACC increased with task difficulty and predicted reaction times.
  • Earlier ACC-motor coherence predicted individual differences in accuracy, linking processing speed to performance.
  • Dynamic coordination across a widespread brain network, particularly via long-range theta coherence, supports cognitive control.

Conclusions:

  • Successful cognitive control relies on the dynamic synchronization of neural activity across distributed brain networks.
  • Long-range theta coherence appears to be a critical mechanism for efficient cognitive control throughout the neocortex.