Cross-frequency synchronization connects networks of fast and slow oscillations during visual working memory maintenance
Neuronal activity in sensory and fronto-parietal (FP) areas underlies the representation and attentional control, respectively, of sensory information maintained in visual working memory (VWM). Within these regions, beta/gamma phase-synchronization supports the integration of sensory functions, whil...
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doaj-4be3686af36643339de1ac112fd3a9682021-05-05T00:36:06ZengeLife Sciences Publications LtdeLife2050-084X2016-09-01510.7554/eLife.13451Cross-frequency synchronization connects networks of fast and slow oscillations during visual working memory maintenanceFelix Siebenhühner0Sheng H Wang1J Matias Palva2Satu Palva3https://orcid.org/0000-0001-9496-7391Neuroscience Center, University of Helsinki, Helsinki, FinlandNeuroscience Center, University of Helsinki, Helsinki, FinlandNeuroscience Center, University of Helsinki, Helsinki, FinlandNeuroscience Center, University of Helsinki, Helsinki, Finland; BioMag laboratory, HUS Medical Imaging Center, Helsinki, FinlandNeuronal activity in sensory and fronto-parietal (FP) areas underlies the representation and attentional control, respectively, of sensory information maintained in visual working memory (VWM). Within these regions, beta/gamma phase-synchronization supports the integration of sensory functions, while synchronization in theta/alpha bands supports the regulation of attentional functions. A key challenge is to understand which mechanisms integrate neuronal processing across these distinct frequencies and thereby the sensory and attentional functions. We investigated whether such integration could be achieved by cross-frequency phase synchrony (CFS). Using concurrent magneto- and electroencephalography, we found that CFS was load-dependently enhanced between theta and alpha–gamma and between alpha and beta-gamma oscillations during VWM maintenance among visual, FP, and dorsal attention (DA) systems. CFS also connected the hubs of within-frequency-synchronized networks and its strength predicted individual VWM capacity. We propose that CFS integrates processing among synchronized neuronal networks from theta to gamma frequencies to link sensory and attentional functions.https://elifesciences.org/articles/13451MEGoscillationhumansynchronyworking memory |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Felix Siebenhühner Sheng H Wang J Matias Palva Satu Palva |
spellingShingle |
Felix Siebenhühner Sheng H Wang J Matias Palva Satu Palva Cross-frequency synchronization connects networks of fast and slow oscillations during visual working memory maintenance eLife MEG oscillation human synchrony working memory |
author_facet |
Felix Siebenhühner Sheng H Wang J Matias Palva Satu Palva |
author_sort |
Felix Siebenhühner |
title |
Cross-frequency synchronization connects networks of fast and slow oscillations during visual working memory maintenance |
title_short |
Cross-frequency synchronization connects networks of fast and slow oscillations during visual working memory maintenance |
title_full |
Cross-frequency synchronization connects networks of fast and slow oscillations during visual working memory maintenance |
title_fullStr |
Cross-frequency synchronization connects networks of fast and slow oscillations during visual working memory maintenance |
title_full_unstemmed |
Cross-frequency synchronization connects networks of fast and slow oscillations during visual working memory maintenance |
title_sort |
cross-frequency synchronization connects networks of fast and slow oscillations during visual working memory maintenance |
publisher |
eLife Sciences Publications Ltd |
series |
eLife |
issn |
2050-084X |
publishDate |
2016-09-01 |
description |
Neuronal activity in sensory and fronto-parietal (FP) areas underlies the representation and attentional control, respectively, of sensory information maintained in visual working memory (VWM). Within these regions, beta/gamma phase-synchronization supports the integration of sensory functions, while synchronization in theta/alpha bands supports the regulation of attentional functions. A key challenge is to understand which mechanisms integrate neuronal processing across these distinct frequencies and thereby the sensory and attentional functions. We investigated whether such integration could be achieved by cross-frequency phase synchrony (CFS). Using concurrent magneto- and electroencephalography, we found that CFS was load-dependently enhanced between theta and alpha–gamma and between alpha and beta-gamma oscillations during VWM maintenance among visual, FP, and dorsal attention (DA) systems. CFS also connected the hubs of within-frequency-synchronized networks and its strength predicted individual VWM capacity. We propose that CFS integrates processing among synchronized neuronal networks from theta to gamma frequencies to link sensory and attentional functions. |
topic |
MEG oscillation human synchrony working memory |
url |
https://elifesciences.org/articles/13451 |
work_keys_str_mv |
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1721476140974997504 |