Results 11 to 20 of about 4,450 (237)

Learning and the Development of Contexts for Action

open access: yesFrontiers in Human Neuroscience, 2011
Neurophysiological evidence from animal studies suggests that frontal corticolimbic systems support early stages of learning, whereas later stages involve context representation formed in hippocampus and posterior cingulate cortex.
Phan eLuu   +7 more
doaj   +1 more source

The forces and Penrose process in Friedman spacetime

open access: yesPhysics of Complex Systems, 2021
In this paper, we compare the force expressions in both comoving synchronous and Ellis coordinate systems in Friedman-Robertson-Walker spacetime in order to understand how the coordinate transformation affects the inertial forces.
Андрей Анатольевич Гриб   +1 more
doaj   +1 more source

Time-Course of Cortical Networks Involved in Working Memory

open access: yesFrontiers in Human Neuroscience, 2014
Working memory (WM) is one of the most studied cognitive constructs. Although many neuroimaging studies have identified brain networks involved in WM, the time course of these networks remains unclear.
Phan eLuu   +8 more
doaj   +1 more source

Brain substrates of behavioral programs associated with self-regulation

open access: yesFrontiers in Psychology, 2010
The present paper proposes that four neuromodulator systems underpin highly generalized behavioral sets, but each targets either dorsomedial or ventrolateral cortical systems, where it produces its effects in either a proactive or reactive orientation to
Mattie Tops   +8 more
doaj   +1 more source

Circular Geodesics Stability in a Static Black Hole in New Massive Gravity

open access: yesGalaxies, 2020
We study the existence and stability of circular geodesics in a family of asymptotically AdS static black holes in New Massive Gravity theory. We show that the mathematical sign of the hair parameter determines the existence of such geodesics.
Andrés Aceña   +2 more
doaj   +1 more source

Simple Closed Quasigeodesics on Tetrahedra

open access: yesInformation, 2022
Pogorelov proved in 1949 that every convex polyhedron has at least three simple closed quasigeodesics. Whereas a geodesic has exactly a π surface angle to either side at each point, a quasigeodesic has at most a π surface angle to either side at each ...
Joseph O’Rourke, Costin Vîlcu
doaj   +1 more source

Transcranial electrical neuromodulation based on the reciprocity principle

open access: yesFrontiers in Psychiatry, 2016
A key challenge in multi-electrode transcranial electrical stimulation (TES) or transcranial direct current stimulation (tDCS) is to find a current injection pattern that delivers the necessary current density at a target and minimizes it in the rest of ...
Mariano eFernandez Corazza   +8 more
doaj   +1 more source

Geodesics for the Painlevé–Gullstrand Form of Lense–Thirring Spacetime

open access: yesUniverse, 2022
Recently, the current authors have formulated and extensively explored a rather novel Painlevé–Gullstrand variant of the slow-rotation Lense–Thirring spacetime, a variant which has particularly elegant features—including unit lapse, intrinsically flat ...
Joshua Baines   +3 more
doaj   +1 more source

Evolutionary dynamics on a regular networked structured and unstructured multi‐population

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView., 2023
Abstract In this paper, we study collective decision‐making in a multi‐population framework, where groups of individuals represent whole populations that interact by means of a regular network. Each group consists of a number of players and every player can choose between two options.
Wouter Baar   +2 more
wiley   +1 more source

Dense array EEG (dEEG) source estimation in neocortical epilepsy

open access: yesFrontiers in Neurology, 2013
Rationale : Dense array EEG (dEEG) evenly covers the whole head surface with over 100 channels contributing to more accurate electrical source imaging due to the higher spatial and temporal resolution.
Madoka eYamazaki   +6 more
doaj   +1 more source

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