Results 31 to 40 of about 4,591,312 (294)

Increased slow oscillatory activity in substantia nigra pars reticulata triggers abnormal involuntary movements in the 6-OHDA-lesioned rat in the presence of excessive extracelullar striatal dopamine

Neurobiology of Disease, 2006
Since electrophysiological correlates of l-dopa-induced dyskinesia (LID) are almost unknown, changes of striatal dopamine (DA) transmission and electrophysiological activity of the substantia nigra pars reticulata (SNr) were recorded before and after ...
Wassilios Meissner, Paula Ravenscroft, René Reese, Daniel Harnack, Rudolf Morgenstern, Andreas Kupsch, Henrik Klitgaard, Bernard Bioulac, Christian E. Gross, Erwan Bezard, Thomas Boraud   +10 more
doaj   +1 more source

Modeling Spectral Properties in Stationary Processes of Varying Dimensions with Applications to Brain Local Field Potential Signals

Entropy, 2020
In some applications, it is important to compare the stochastic properties of two multivariate time series that have unequal dimensions. A new method is proposed to compare the spread of spectral information in two multivariate stationary processes with ...
Raanju R. Sundararajan, Ron Frostig, Hernando Ombao   +2 more
doaj   +1 more source

Energy of gravitational radiation in plane-symmetric space-times [PDF]

, 2008
Gravitational radiation in plane-symmetric space-times can be encoded in a complex potential, satisfying a non-linear wave equation. An effective energy tensor for the radiation is given, taking a scalar-field form in terms of the potential, entering the
C. W. Misner, J. B. Griffiths, Sean A. Hayward   +2 more
core   +1 more source

Dynamics of Gamma Bursts in Local Field Potentials

Neural Computation, 2015
In this letter, we provide a stochastic analysis of, and supporting simulation data for, a stochastic model of the generation of gamma bursts in local field potential (LFP) recordings by interacting populations of excitatory and inhibitory neurons. Our interest is in behavior near a fixed point of the stochastic dynamics of the model.
Priscilla E. Greenwood, Mark D. McDonnell, Lawrence M. Ward   +2 more
openaire   +4 more sources

Exercise Improves Movement by Regulating the Plasticity of Cortical Function in Hemiparkinsonian Rats

Frontiers in Aging Neuroscience, 2021
Aberrant cortical spike-local field potential (LFP) coupling leads to abnormal basal ganglia activity, disruption of cortical function, and impaired movement in Parkinson's disease (PD).
Kaixuan Shi, Kaixuan Shi, Xiaoli Liu, Lijuan Hou, Decai Qiao, Yuan Peng   +5 more
doaj   +1 more source

The Three Dimensional Structural Shape of the Gravitational Potential in the Local Group

, 2008
The Local Group is a small galaxy cluster with the membership of 62 nearby galaxies including the Milky Way and M31. Although the Local Group has yet to be virialized, it interacts with the surrounding matter as one gravitationally bound system.
Atlay, Bardeen, Belokurov, Belokurov, Bevington, Bomee Lee, Bond, Chiueh, Eke, Hayashi, Hubble, Irwin, Jounghun Lee, Karachentsev, Klypin, Knebe, Lee, Lee, Lee, Martin, Mateo, McConnachie, Ryan-Weber, Somerville, Springel, Van den Bergh, Walsh, Whiting, Whiting, Widrow, Willman, Willman, Zel'dovich, Zentner, Zucker, Zucker, Zucker, Zucker   +37 more
core   +1 more source

Localized Path Planning for Mobile Robots Based on a Subarea-Artificial Potential Field Model

Sensors
The artificial potential field method has efficient obstacle avoidance ability, but this traditional method suffers from local minima, unreasonable paths, and sudden changes in heading angles during obstacle avoidance, leading to rough paths and ...
Qiang Lv, Guoqiang Hao, Zhen Huang, Bin Li, Dandan Fu, Huanlong Zhao, Wei Chen, Sheng Chen   +7 more
doaj   +1 more source

Whisker Array Functional Representation in Rat Barrel Cortex:Transcendence of One-to-One Topography and its Underlying Mechanism

Frontiers in Neural Circuits, 2012
The one-to-one relationship between whiskers, barrels, and barrel columns described for rat barrel cortex demonstrates that the organization of cortical function adheres to topographical and columnar principles. Supporting evidence is typically based on
Cynthia Huei-Chien Chen-Bee, Yi eZhou, Nathan S Jacobs, Beatrice eLim, Ron eFrostig   +4 more
doaj   +1 more source

Chronic Sensing of Subthalamic Local Field Potentials: Comparison of First and Second Generation Implantable Bidirectional Systems Within a Single Subject

Frontiers in Neuroscience, 2021
BackgroundMany adaptative deep brain stimulation (DBS) paradigms rely upon the ability to sense neural signatures of specific clinical signs or symptoms in order to modulate therapeutic stimulation. In first-generation bidirectional neurostimulators, the
Daniel D. Cummins, Ryan B. Kochanski, Roee Gilron, Nicole C. Swann, Simon Little, Lauren H. Hammer, Philip A. Starr   +6 more
doaj   +1 more source

A biophysical observation model for field potentials of networks of leaky integrate-and-fire neurons

, 2012
We present a biophysical approach for the coupling of neural network activity as resulting from proper dipole currents of cortical pyramidal neurons to the electric field in extracellular fluid.
Graben, Peter beim, Rodrigues, Serafim
core   +2 more sources