The functional role of cross-frequency coupling

Recent studies suggest that cross-frequency coupling (CFC) might play a functional role in neuronal computation, communication and learning. In particular, the strength of phase-amplitude CFC differs across brain areas in a task-relevant manner, changes quickly in response to sensory, motor and cogn...

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Bibliographic Details
Published in:Trends in cognitive sciences 2010-11, Vol.14 (11), p.506-515
Main Authors: Canolty, Ryan T, Knight, Robert T
Format: Article
Language:English
Subjects:
Behavioral psychophysiology
Biological and medical sciences
Brain Mapping
Cerebral Cortex - physiology
Cortical Synchronization
Electrophysiology
Fundamental and applied biological sciences. Psychology
Humans
Mental Processes - physiology
Models, Neurological
Nerve Net - physiology
Neurology
Psychiatry
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
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Summary:Recent studies suggest that cross-frequency coupling (CFC) might play a functional role in neuronal computation, communication and learning. In particular, the strength of phase-amplitude CFC differs across brain areas in a task-relevant manner, changes quickly in response to sensory, motor and cognitive events, and correlates with performance in learning tasks. Importantly, whereas high-frequency brain activity reflects local domains of cortical processing, low-frequency brain rhythms are dynamically entrained across distributed brain regions by both external sensory input and internal cognitive events. CFC might thus serve as a mechanism to transfer information from large-scale brain networks operating at behavioral timescales to the fast, local cortical processing required for effective computation and synaptic modification, thus integrating functional systems across multiple spatiotemporal scales.
ISSN:1364-6613
1879-307X
DOI:10.1016/j.tics.2010.09.001