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Prefrontal Control over Motor Cortex Cycles at Beta Frequency during Movement Inhibition

Overview of attention for article published in Current Biology, December 2014
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Title
Prefrontal Control over Motor Cortex Cycles at Beta Frequency during Movement Inhibition
Published in
Current Biology, December 2014
DOI 10.1016/j.cub.2014.10.043
Pubmed ID
Authors

Silvia Picazio, Domenica Veniero, Viviana Ponzo, Carlo Caltagirone, Joachim Gross, Gregor Thut, Giacomo Koch

Abstract

A fully adapted behavior requires maximum efficiency to inhibit processes in the motor domain [1]. Although a number of cortical and subcortical brain regions have been implicated, converging evidence suggests that activation of right inferior frontal gyrus (r-IFG) and right presupplementary motor area (r-preSMA) is crucial for successful response inhibition [2, 3]. However, it is still unknown how these prefrontal areas convey the necessary signal to the primary motor cortex (M1), the cortical site where the final motor plan eventually has to be inhibited or executed. On the basis of the widely accepted view that brain oscillations are fundamental for communication between neuronal network elements [4-6], one would predict that the transmission of these inhibitory signals within the prefrontal-central networks (i.e., r-IFG/M1 and/or r-preSMA/M1) is realized in rapid, periodic bursts coinciding with oscillatory brain activity at a distinct frequency. However, the dynamics of corticocortical effective connectivity has never been directly tested on such timescales. By using double-coil transcranial magnetic stimulation (TMS) and electroencephalography (EEG) [7, 8], we assessed instantaneous prefrontal-to-motor cortex connectivity in a Go/NoGo paradigm as a function of delay from (Go/NoGo) cue onset. In NoGo trials only, the effects of a conditioning prefrontal TMS pulse on motor cortex excitability cycled at beta frequency, coinciding with a frontocentral beta signature in EEG. This establishes, for the first time, a tight link between effective cortical connectivity and related cortical oscillatory activity, leading to the conclusion that endogenous (top-down) inhibitory motor signals are transmitted in beta bursts in large-scale cortical networks for inhibitory motor control.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 257 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Germany 2 <1%
France 2 <1%
Netherlands 1 <1%
Hong Kong 1 <1%
South Africa 1 <1%
Israel 1 <1%
Canada 1 <1%
Mexico 1 <1%
China 1 <1%
Other 2 <1%
Unknown 244 95%

Demographic breakdown

Readers by professional status Count As %
Researcher 60 23%
Student > Ph. D. Student 48 19%
Student > Master 34 13%
Student > Bachelor 23 9%
Professor > Associate Professor 10 4%
Other 40 16%
Unknown 42 16%
Readers by discipline Count As %
Neuroscience 75 29%
Psychology 57 22%
Medicine and Dentistry 23 9%
Agricultural and Biological Sciences 19 7%
Engineering 7 3%
Other 19 7%
Unknown 57 22%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 15 January 2015.
All research outputs
#16,045,990
of 25,371,288 outputs
Outputs from Current Biology
#11,975
of 14,673 outputs
Outputs of similar age
#205,092
of 368,016 outputs
Outputs of similar age from Current Biology
#147
of 194 outputs
Altmetric has tracked 25,371,288 research outputs across all sources so far. This one is in the 34th percentile – i.e., 34% of other outputs scored the same or lower than it.
So far Altmetric has tracked 14,673 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 61.9. This one is in the 16th percentile – i.e., 16% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 368,016 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 41st percentile – i.e., 41% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 194 others from the same source and published within six weeks on either side of this one. This one is in the 21st percentile – i.e., 21% of its contemporaries scored the same or lower than it.