Results 21 to 30 of about 2,975,090 (192)
Can hyper-synchrony in meditation lead to seizures? Similarities in meditative and epileptic brain states [PDF]
, 2014 Meditation is used worldwide by millions of people for relaxation and stress relief. Given sufficient practice, meditators may also experience a variety of altered states of consciousness.
Lindsay, Shane
core +1 more source
Nature Communications, 2018 Anticipation helps to prioritise the processing of task-relevant sensory targets over irrelevant distractors. Here the authors analyse visual EEG responses and show that anticipation may do so by enhancing the neural representation of the target and by ...
Freek van Ede +3 more
doaj +1 more source
Task-Evoked Dynamic Network Analysis Through Hidden Markov Modeling
Frontiers in Neuroscience, 2018 Complex thought and behavior arise through dynamic recruitment of large-scale brain networks. The signatures of this process may be observable in electrophysiological data; yet robust modeling of rapidly changing functional network structure on rapid ...
Andrew J. Quinn +12 more
doaj +1 more source
Testing sensory evidence against mnemonic templates
eLife, 2015 Most perceptual decisions require comparisons between current input and an internal template. Classic studies propose that templates are encoded in sustained activity of sensory neurons.
Nicholas E Myers +5 more
doaj +1 more source
Functional MRI study of feedback-based reinforcement learning in depression
Frontiers in Neuroinformatics, 2022 Reinforcement learning depends upon the integrity of emotional circuitry to establish associations between environmental cues, decisions, and positive or negative outcomes in order to guide behavior through experience.
Almira M. Kustubayeva +8 more
doaj +1 more source
Nondifferentiable activity in the brain
PNAS Nexus, 2023 Abstract Spike raster plots of numerous neurons show vertical stripes, indicating that neurons exhibit synchronous activity in the brain. We seek to determine whether these coherent dynamics are caused by smooth brainwave activity or by something else.
Yasuhiro Tsubo, Shigeru Shinomoto
openaire +2 more sources
Noninvasive brain stimulation techniques can modulate cognitive processing [PDF]
, 2019 Recent methods that allow a noninvasive modulation of brain activity are able to modulate human cognitive behavior. Among these methods are transcranial electric stimulation and transcranial magnetic stimulation that both come in multiple variants.
Herrmann, Christoph S. +3 more
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Complex networks in brain electrical activity
, 2005 We analyze the complex networks associated with brain electrical activity. Multichannel EEG measurements are first processed to obtain 3D voxel activations using the tomographic algorithm LORETA.
Fuentemilla, L. +4 more
core +1 more source
Optical mapping of neuronal activity during seizures in zebrafish [PDF]
, 2017 Mapping neuronal activity during the onset and propagation of epileptic seizures can provide a better understanding of the mechanisms underlying this pathology and improve our approaches to the development of new drugs.
Fornetto, C +10 more
core +3 more sources
Physical activity affects brain integrity in HIV+ individuals [PDF]
, 2015 Prior research has suggested benefits of aerobic physical activity (PA) on cognition and brain volumes in HIV uninfected (HIV−) individuals, however, few studies have explored the relationships between PA and brain integrity (cognition and structural ...
Ances, Beau M +5 more
core +2 more sources