Results 41 to 50 of about 6,476,215 (305)

Synaptic depression and slow oscillatory activity in a biophysical network model of the cerebral cortex

open access: yesFrontiers in Computational Neuroscience, 2012
Short-term synaptic depression (STD) is a form of synaptic plasticity that has a large impact on network computations. Experimental results suggest that STD is modulated by cortical activity, decreasing with activity in the network andincreasing during ...
José Manuel eBenita   +3 more
doaj   +1 more source

Stimuli reduce the dimensionality of cortical activity [PDF]

open access: yesFrontiers in Systems Neuroscience, 2015
Abstract The activity of ensembles of simultaneously recorded neurons can be represented as a set of points in the space of firing rates. Even though the dimension of this space is equal to the ensemble size, neural activity can be effectively localized on smaller subspaces.
Mazzucato, Luca   +2 more
openaire   +4 more sources

Anatomical constraints on lateral competition in columnar cortical architectures [PDF]

open access: yes, 2014
Competition is a well-studied and powerful mechanism for information processing in neuronal networks, providing noise rejection, signal restoration, decision making and associative memory properties, with relatively simple requirements for network ...
Muir, Dylan R   +2 more
core   +1 more source

Cortical activation in generalized seizures

open access: yesEpilepsia, 2019
AbstractObjectivePatients with generalized epilepsy exhibit different epileptiform events including asymptomatic interictal spikes (IS), absence seizures with spike‐wave discharges (SWDs), and myoclonic seizures (MS). Our objective was to determine the spatiotemporal patterns of cortical activation in SWDs, IS, and MS in the Gabra1+/A322D juvenile ...
Li Ding   +3 more
openaire   +3 more sources

Imaging plasticity and structure of cortical maps in cat and mouse visual cortex [PDF]

open access: yes, 2001
The study reported in the first part of this thesis utilized optical imaging of intrinsic signals to visualize changes in orientation maps in cat visual cortex induced by pairing a visual stimulus with an intracortical electrical stimulation.
Schuett, Sven
core   +1 more source

Activity recall in a visual cortical ensemble [PDF]

open access: yesNature Neuroscience, 2012
Cue-triggered recall of learned temporal sequences is an important cognitive function that has been attributed to higher brain areas. Here recordings in both anesthetized and awake rats demonstrate that after repeated stimulation with a moving spot that evoked sequential firing of an ensemble of primary visual cortex (V1) neurons, just a brief flash at
Xu, Shengjin   +3 more
openaire   +4 more sources

Effects of rhythmic visual cues on cortical activation and functional connectivity features during stepping: an fNIRS study

open access: yesFrontiers in Human Neuroscience
IntroductionRhythmic visual cues (RVCs) may influence gait initiation by modulating cognition resources. However, it is unknown how RVCs modulate cognitive resources allocation during gait movements.
Jiajia Wu   +28 more
doaj   +1 more source

Brain oscillations in sport: toward EEG biomakers of performance

open access: yesFrontiers in Psychology, 2016
Brain dynamics is at the basis of top performance accomplishment in sports. The search for neural biomarkers of performance remains a challenge in movement science and sport psychology.
Guy eCheron   +13 more
doaj   +1 more source

Networks of cortical activity in infants with epilepsy

open access: yesBrain Communications, 2022
AbstractEpilepsy in infancy links to a significant risk of neurodevelopmental delay, calling for a better understanding of its underlying mechanisms. Here, we studied cortical activity networks in infants with early-onset epilepsy to identify network properties that could pre-empt infants’ neurodevelopmental course. We studied high-density (64 channel)
Sami Auno   +4 more
openaire   +3 more sources

Modulation in cortical excitability disrupts information transfer in perceptual-level stimulus processing.

open access: yesNeuroImage, 2021
Despite significant interest in the neural underpinnings of behavioral variability, little light has been shed on the cortical mechanism underlying the failure to respond to perceptual-level stimuli.
Ladan Moheimanian   +4 more
doaj   +1 more source

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