Results 51 to 60 of about 456,227 (305)

Neural correlates of meditation: a review of structural and functional MRI studies

open access: yesFrontiers in Bioscience-Scholar, 2020
Here, we review the neurophysiological and neuroimaging changes that mediation induces in structural and functional MRI. The available evidence from structural studies suggests that mediation impacts neuronal plasticity and the functional MRI suggest ...
Rui Ferreira Afonso   +3 more
doaj   +1 more source

Physiological Gaussian Process Priors for the Hemodynamics in fMRI Analysis

open access: yes, 2020
Background: Inference from fMRI data faces the challenge that the hemodynamic system that relates neural activity to the observed BOLD fMRI signal is unknown.
Eklund, Anders   +2 more
core   +1 more source

Simultaneous intracranial EEG and fMRI of interictal epileptic discharges in humans [PDF]

open access: yes, 2011
Simultaneous scalp EEG–fMRI measurements allow the study of epileptic networks and more generally, of the coupling between neuronal activity and haemodynamic changes in the brain.
Carmichael, D.W.   +7 more
core   +1 more source

The Brain in (Willed) Action: A Meta-Analytical Comparison of Imaging Studies on Motor Intentionality and Sense of Agency

open access: yesFrontiers in Psychology, 2019
Voluntary actions can be fractionated in different phenomena: from the emergence of intentions and the ensuing motor plans and actions, to the anticipation and monitoring of their outcomes, to the appreciation of their congruency with intentions and to ...
Silvia Seghezzi   +5 more
doaj   +1 more source

Tracking prototype and exemplar representations in the brain across learning

open access: yeseLife, 2020
There is a long-standing debate about whether categories are represented by individual category members (exemplars) or by the central tendency abstracted from individual members (prototypes).
Caitlin R Bowman   +2 more
doaj   +1 more source

Caffeine-Induced Global Reductions in Resting-State BOLD Connectivity Reflect Widespread Decreases in MEG Connectivity. [PDF]

open access: yes, 2013
In resting-state functional magnetic resonance imaging (fMRI), the temporal correlation between spontaneous fluctuations of the blood oxygenation level dependent (BOLD) signal from different brain regions is used to assess functional connectivity ...
Diwakar, Mithun   +6 more
core   +1 more source

Joint fMRI Decoding and Encoding with Latent Embedding Alignment [PDF]

open access: yesarXiv, 2023
The connection between brain activity and corresponding visual stimuli is crucial in comprehending the human brain. While deep generative models have exhibited advancement in recovering brain recordings by generating images conditioned on fMRI signals, accomplishing high-quality generation with consistent semantics continues to pose challenges ...
arxiv  

Double Temporal Sparsity Based Accelerated Reconstruction in Compressed Sensing fMRI

open access: yes, 2017
A number of reconstruction methods have been proposed recently for accelerated functional Magnetic Resonance Imaging (fMRI) data collection. However, existing methods suffer with the challenge of greater artifacts at high acceleration factors. This paper
Aggarwal, Priya, Gupta, Anubha
core   +1 more source

The Pathoconnectivity Profile of Alzheimer’s Disease: A Morphometric Coalteration Network Analysis

open access: yesFrontiers in Neurology, 2018
Gray matter alterations are typical features of brain disorders. However, they do not impact on the brain randomly. Indeed, it has been suggested that neuropathological processes can selectively affect certain assemblies of neurons, which typically are ...
Jordi Manuello   +14 more
doaj   +1 more source

Neural-level associations of non-verbal pragmatic comprehension in young Finnish autistic adults

open access: yesInternational Journal of Circumpolar Health, 2021
This video-based study examines the pragmatic non-verbal comprehension skills and corresponding neural-level findings in young Finnish autistic adults, and controls.
Aija Kotila   +9 more
doaj   +1 more source

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