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@ARTICLE{Denker:844434,
author = {Denker, Michael and Zehl, Lyuba and Kilavik, Bjørg E. and
Diesmann, Markus and Brochier, Thomas and Riehle, Alexa and
Grün, Sonja},
title = {{LFP} beta amplitude is linked to mesoscopic
spatio-temporal phase patterns},
journal = {Scientific reports},
volume = {8},
number = {1},
issn = {2045-2322},
address = {London},
publisher = {Nature Publishing Group},
reportid = {FZJ-2018-01853},
pages = {5200},
year = {2018},
note = {Publikationsgebühren bezahlt, warten auf DOI, dann aus APC
Korb herausnehmen und Institut INM-6 hinzufügen sowie DOI
Import.},
abstract = {Beta oscillations observed in motor cortical local field
potentials (LFPs) recorded on separate electrodes of a
multi-electrode array have been shown to exhibit non-zero
phase shifts that organize into planar waves. Here, we
generalize this concept to additional classes of salient
patterns that fully describe the spatial organization of
beta oscillations. During a delayed reach-to-grasp task we
distinguish planar, synchronized, random, circular, and
radial phase patterns in monkey primary motor and dorsal
premotor cortices. We observe that patterns correlate with
the beta amplitude (envelope): Coherent planar/radial wave
propagation accelerates with growing amplitude, and
synchronized patterns are observed at largest amplitudes. In
contrast, incoherent random or circular patterns are
observed almost exclusively when beta is strongly
attenuated. The occurrence probability of a particular
pattern modulates with behavioral epochs in the same way as
beta amplitude: Coherent patterns are more present during
movement preparation where amplitudes are large, while
incoherent phase patterns are dominant during movement
execution where amplitudes are small. Thus, we uncover a
trigonal link between the spatial arrangement of beta
phases, beta amplitude, and behavior. Together with previous
findings, we discuss predictions on the spatio-temporal
organization of precisely coordinated spiking on the
mesoscopic scale as a function of beta power.},
cin = {INM-6 / IAS-6 / INM-10},
ddc = {000},
cid = {I:(DE-Juel1)INM-6-20090406 / I:(DE-Juel1)IAS-6-20130828 /
I:(DE-Juel1)INM-10-20170113},
pnm = {89571 - Connectivity and Activity (POF2-89571) / HBP SGA1 -
Human Brain Project Specific Grant Agreement 1 (720270) /
HBP - The Human Brain Project (604102) / BRAINSCALES -
Brain-inspired multiscale computation in neuromorphic hybrid
systems (269921) / DFG project 322093511 - Kognitive
Leistung als Ergebnis koordinierter neuronaler Aktivität in
unreifen präfrontal-hippokampalen Netzwerken (322093511) /
DFG project 238707842 - Kausative Mechanismen mesoskopischer
Aktivitätsmuster in der auditorischen
Kategorien-Diskrimination (238707842)},
pid = {G:(DE-HGF)POF2-89571 / G:(EU-Grant)720270 /
G:(EU-Grant)604102 / G:(EU-Grant)269921 /
G:(GEPRIS)322093511 / G:(GEPRIS)238707842},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29581430},
UT = {WOS:000428235200004},
doi = {10.1038/s41598-018-22990-7},
url = {https://juser.fz-juelich.de/record/844434},
}