Faculty Opinions recommendation of Phase coupling in a cerebro-cerebellar network at 8-13 Hz during reading.

2006 ◽  
Author(s):  
Alfons Schnitzler
Keyword(s):  
Phase Coupling

Phase coupling gravitation: Symmetries and gauge fields

1988 ◽  
Vol 202 (4) ◽  
pp. 497-500 ◽  
Author(s):  
Jacob D. Bekenstein
Keyword(s):  
Gauge Fields ◽  
Phase Coupling

Superfluid Critical-Velocity Measurements Utilizing Phase Coupling

1970 ◽  
Vol 2 (4) ◽  
pp. 1492-1501 ◽  
Author(s):  
H. E. Corke ◽  
A. F. Hildebrandt
Keyword(s):  
Critical Velocity ◽  
Velocity Measurements ◽  
Phase Coupling

Multidimensional structural variation in the cyanotrichite family of merotypes: camerolaite-3b-F\bar 1

2017 ◽  
Vol 73 (5) ◽  
pp. 950-955
Author(s):  
Stuart J. Mills ◽  
Andrew G. Christy ◽  
Georges Favreau ◽  
Valérie Galea-Clolus
Keyword(s):  
Short Range ◽  
Structural Variation ◽  
Unit Cell ◽  
Range Order ◽  
Phase Coupling ◽  
Unit Cell Parameters ◽  
Cell Parameters ◽  
Structural Variety ◽  
Group A ◽  
Regular Alternation

A new superstructure of the mineral camerolaite, Cu6Al3(OH)18(H2O)2[Sb(OH)6](SO4), has been refined in space groupP\bar 1 with unit-cell parametersaP= 7.7660 (16),bP= 8.759 (4),cP= 11.306 (2) Å, αP= 108.67 (4), βP= 83.41 (3), γP= 126.64 (2)°,V= 581.6 (3) Å3andZ= 1, withR1= 0.0951 (all data). This is the first refined example of a cyanotrichite-group mineral in which long-range order of interlayer anions produces a superstructure alongb, although diffuse scattering has previously been reported that corresponds to short-range order. Though the structure shares with other members of the cyanotrichite group a structural unit in which ribbons of edge-sharing Cu and Al octahedra form layers || (001), the superstructure arises from regular alternation of [SO4] and [Sb(OH)6] polyhedra along rods that lie between the layers, and phase coupling between rods that maximizes the distance between [SO4] groups of adjacent rods alongaandcdirections. This arrangement suggests an alternative nearly orthogonal choice of unit cell inF\bar 1 with parametersaF= 12.473 (26),bF= 8.759 (4),cF= 21.476 (7) Å, αF= 85.94 (4), βF= 95.91 (5), γF= 92.34 (9)°, which is recommended for comparing this structural variety of camerolaite with other members of the group.

scholarly journals Dissociation between sustained single-neuron spiking and transient β-LFP oscillations in primate motor cortex

2017 ◽  
Vol 117 (4) ◽  
pp. 1524-1543 ◽  
Author(s):  
Michael E. Rule ◽  
Carlos E. Vargas-Irwin ◽  
John P. Donoghue ◽  
Wilson Truccolo
Keyword(s):  
Steady State ◽  
Motor Cortex ◽  
Local Field ◽  
Single Neuron ◽  
Field Potential ◽  
Movement Preparation ◽  
Phase Coupling ◽  
Firing Rates ◽  
Sources Of Variation ◽  
Transient Events

Determining the relationship between single-neuron spiking and transient (20 Hz) β-local field potential (β-LFP) oscillations is an important step for understanding the role of these oscillations in motor cortex. We show that whereas motor cortex firing rates and beta spiking rhythmicity remain sustained during steady-state movement preparation periods, β-LFP oscillations emerge, in contrast, as short transient events. Single-neuron mean firing rates within and outside transient β-LFP events showed no differences, and no consistent correlation was found between the beta oscillation amplitude and firing rates, as was the case for movement- and visual cue-related β-LFP suppression. Importantly, well-isolated single units featuring beta-rhythmic spiking (43%, 125/292) showed no apparent or only weak phase coupling with the transient β-LFP oscillations. Similar results were obtained for the population spiking. These findings were common in triple microelectrode array recordings from primary motor (M1), ventral (PMv), and dorsal premotor (PMd) cortices in nonhuman primates during movement preparation. Although beta spiking rhythmicity indicates strong membrane potential fluctuations in the beta band, it does not imply strong phase coupling with β-LFP oscillations. The observed dissociation points to two different sources of variation in motor cortex β-LFPs: one that impacts single-neuron spiking dynamics and another related to the generation of mesoscopic β-LFP signals. Furthermore, our findings indicate that rhythmic spiking and diverse neuronal firing rates, which encode planned actions during movement preparation, may naturally limit the ability of different neuronal populations to strongly phase-couple to a single dominant oscillation frequency, leading to the observed spiking and β-LFP dissociation. NEW & NOTEWORTHY We show that whereas motor cortex spiking rates and beta (~20 Hz) spiking rhythmicity remain sustained during steady-state movement preparation periods, β-local field potential (β-LFP) oscillations emerge, in contrast, as transient events. Furthermore, the β-LFP phase at which neurons spike drifts: phase coupling is typically weak or absent. This dissociation points to two sources of variation in the level of motor cortex beta: one that impacts single-neuron spiking and another related to the generation of measured mesoscopic β-LFPs.

Sign in / Sign up

Export Citation Format

Share Document