The level of frontal-temporal beta-2 band EEG synchronization distinguishes anterior cingulate cortex from other frontal regions.
Recent findings indicate that complex cognitive functions are organized at a global level in the brain and rely on large-scale information processing requiring functional integration of multiple disparate neural assemblies. The critical question of the integration of distributed brain activities is whether the essential integrative role can be attributed to a specific structure in the brain or whether this ability is inherent to the cognitive network as a whole. The results of the present study show that mean values of the running correlation function in frontal-temporal EEG pairs with one electrode in the anterior cingulate cortex (ACC) are significantly higher than the same values in other frontal-temporal pairs. These findings indicate a particular role of the ACC in large-scale communication, which could reflect its unique integrative functions in cognitive processing.
Kukleta
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Department of Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic. mkukleta@med.muni.cz
Bob
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Brázdil
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Roman
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Rektor
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D000679:Amygdala / Q000503:physiopathology; D001611:Beta Rhythm / Q000502:physiology*; D001931:Brain Mapping; D003243:Consciousness / Q000502:physiology; D003344:Cortical Synchronization / Q000502:physiology*; D004292:Dominance, Cerebral / Q000502:physiology; D004567:Electrodes, Implanted; D004569:Electroencephalography; D004827:Epilepsy / Q000503:physiopathology*; D005583:Fourier Analysis; D005625:Frontal Lobe / Q000503:physiopathology*; D006179:Gyrus Cinguli / Q000503:physiopathology*; D006624:Hippocampus / Q000503:physiopathology; D006801:Humans; D020534:Parahippocampal Gyrus / Q000503:physiopathology; D012815:Signal Processing, Computer-Assisted; D013702:Temporal Lobe / Q000503:physiopathology*