Results 31 to 40 of about 452,151 (266)

Stimuli reduce the dimensionality of cortical activity [PDF]

Frontiers 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, Fontanini, Alfredo, La Camera, Giancarlo   +2 more
openaire   +4 more sources

Activity recall in a visual cortical ensemble [PDF]

Nature 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, Jiang, Wanchen, Poo, Mu-ming, Dan, Yang   +3 more
openaire   +4 more sources

Networks of cortical activity in infants with epilepsy

Brain 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, Henna Jonsson, Tarja Linnankivi, Anton Tokariev, Sampsa Vanhatalo   +4 more
openaire   +3 more sources

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

Frontiers 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, Jiajia Wu, Jiajia Wu, Huilin Zhou, Huilin Zhou, Hao Chen, Hao Chen, Hao Chen, Wensong Jiang, Wensong Jiang, Wensong Jiang, Xuelian Wang, Xuelian Wang, Xuelian Wang, Tao Meng, Tao Meng, Tao Meng, Chaowen Wu, Chaowen Wu, Chaowen Wu, Li Li, Yuemin Wu, Weinv Fan, Changcheng Shi, Changcheng Shi, Changcheng Shi, Guokun Zuo, Guokun Zuo, Guokun Zuo   +28 more
doaj   +1 more source

Brain oscillations in sport: toward EEG biomakers of performance

Frontiers 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, Guy eCheron, Geraldine ePetit, Julian eCheron, Axelle eLeroy, Axelle eLeroy, Ana Maria Cebolla, Carlos eCevallos, Mathieu ePetieau, David eZarka, Thomas eHoellinger, Anne-Marie eClarinval, Bernard eDan, Bernard eDan   +13 more
doaj   +1 more source

Cortical activity of relevance [PDF]

, 2019
Many theoretical approaches in information retrieval assume that relevance is based on mutual interaction of the system and user. Past studies have mainly focused on the system side of relevance, while user-centred studies are more recent. As a result, this work aims to focus on user relevance, which is characterised as a subjective process, dependant ...
Pinkosova, Zuzana, Moshfeghi, Yashar
openaire   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

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

NeuroImage, 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, Sivylla E. Paraskevopoulou, Markus Adamek, Gerwin Schalk, Peter Brunner   +4 more
doaj   +1 more source

Coupling of the cortical hemodynamic response to cortical and thalamic neuronal activity [PDF]

Proceedings of the National Academy of Sciences, 2005
Accurate interpretation of functional MRI (fMRI) signals requires knowledge of the relationship between the hemodynamic response and the neuronal activity that underlies it. Here we address the question of coupling between pre- and postsynaptic neuronal activity and the hemodynamic response in rodent somatosensory (Barrel) cortex in response to single ...
Anna, Devor, Istvan, Ulbert, Andrew K, Dunn, Suresh N, Narayanan, Stephanie R, Jones, Mark L, Andermann, David A, Boas, Anders M, Dale   +7 more
openaire   +2 more sources

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source