Oscillatory synchronization in large-scale cortical networks predicts perception.
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Oscillatory synchronization in large-scale cortical networks predicts perception. / Hipp, Jörg; Engel, Andreas K.; Siegel, Markus.
In: NEURON, Vol. 69, No. 2, 2, 2011, p. 387-396.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Oscillatory synchronization in large-scale cortical networks predicts perception.
AU - Hipp, Jörg
AU - Engel, Andreas K.
AU - Siegel, Markus
PY - 2011
Y1 - 2011
N2 - Normal brain function requires the dynamic interaction of functionally specialized but widely distributed cortical regions. Long-range synchronization of oscillatory signals has been suggested to mediate these interactions within large-scale cortical networks, but direct evidence is sparse. Here we show that oscillatory synchronization is organized in such large-scale networks. We implemented an analysis approach that allows for imaging synchronized cortical networks and applied this technique to EEG recordings in humans. We identified two networks: beta-band synchronization (~20 Hz) in a fronto-parieto-occipital network and gamma-band synchronization (~80 Hz) in a centro-temporal network. Strong perceptual correlates support their functional relevance: the strength of synchronization within these networks predicted the subjects' perception of an ambiguous audiovisual stimulus as well as the integration of auditory and visual information. Our results provide evidence that oscillatory neuronal synchronization mediates neuronal communication within frequency-specific, large-scale cortical networks.
AB - Normal brain function requires the dynamic interaction of functionally specialized but widely distributed cortical regions. Long-range synchronization of oscillatory signals has been suggested to mediate these interactions within large-scale cortical networks, but direct evidence is sparse. Here we show that oscillatory synchronization is organized in such large-scale networks. We implemented an analysis approach that allows for imaging synchronized cortical networks and applied this technique to EEG recordings in humans. We identified two networks: beta-band synchronization (~20 Hz) in a fronto-parieto-occipital network and gamma-band synchronization (~80 Hz) in a centro-temporal network. Strong perceptual correlates support their functional relevance: the strength of synchronization within these networks predicted the subjects' perception of an ambiguous audiovisual stimulus as well as the integration of auditory and visual information. Our results provide evidence that oscillatory neuronal synchronization mediates neuronal communication within frequency-specific, large-scale cortical networks.
KW - Adult
KW - Humans
KW - Male
KW - Female
KW - Electroencephalography/methods
KW - Perception/physiology
KW - Cerebral Cortex/physiology
KW - Brain Mapping/methods
KW - Cortical Synchronization/physiology
KW - Adult
KW - Humans
KW - Male
KW - Female
KW - Electroencephalography/methods
KW - Perception/physiology
KW - Cerebral Cortex/physiology
KW - Brain Mapping/methods
KW - Cortical Synchronization/physiology
M3 - SCORING: Journal article
VL - 69
SP - 387
EP - 396
JO - NEURON
JF - NEURON
SN - 0896-6273
IS - 2
M1 - 2
ER -
