Results 51 to 60 of about 475,817 (388)

SMART: A statistical framework for optimal design matrix generation with application to fMRI [PDF]

open access: yes, 2009
The general linear model (GLM) is a well established tool for analyzing functional magnetic resonance imaging (fMRI) data. Most fMRI analyses via GLM proceed in a massively univariate fashion where the same design matrix is used for analyzing data from ...
Baumgartner, Richard   +5 more
core   +1 more source

Improving language mapping in clinical fMRI through assessment of grammar. [PDF]

open access: yes, 2017
IntroductionBrain surgery in the language dominant hemisphere remains challenging due to unintended post-surgical language deficits, despite using pre-surgical functional magnetic resonance (fMRI) and intraoperative cortical stimulation.
Benjamin, Christopher   +9 more
core   +1 more source

PRN: a preprint service for catalyzing R-fMRI and neuroscience related studies [v1; ref status: indexed, http://f1000r.es/4ws]

open access: yesF1000Research, 2014
Sharing drafts of scientific manuscripts on preprint hosting services for early exposure and pre-publication feedback is a well-accepted practice in fields such as physics, astronomy, or mathematics.
Chaogan Yan, Qingyang Li, Lei Gao
doaj   +1 more source

The Neural Correlates of Consciousness and Attention: Two Sister Processes of the Brain

open access: yesFrontiers in Neuroscience, 2019
During the last three decades our understanding of the brain processes underlying consciousness and attention has significantly improved, mainly because of the advances in functional neuroimaging techniques.
Andrea Nani   +13 more
doaj   +1 more source

Optimal experimental designs for fMRI via circulant biased weighing designs

open access: yes, 2015
Functional magnetic resonance imaging (fMRI) technology is popularly used in many fields for studying how the brain reacts to mental stimuli. The identification of optimal fMRI experimental designs is crucial for rendering precise statistical inference ...
Cheng, Ching-Shui, Kao, Ming-Hung
core   +1 more source

Ready ... Go: Amplitude of the fMRI Signal Encodes Expectation of Cue Arrival Time [PDF]

open access: yes, 2009
What happens when the brain awaits a signal of uncertain arrival time, as when a sprinter waits for the starting pistol? And what happens just after the starting pistol fires? Using functional magnetic resonance imaging (fMRI), we have discovered a novel
A Elithorn   +54 more
core   +8 more sources

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

Cuspis: A MATLAB Suite for Tasks Investigating Heart-Brain Interactions during fMRI

open access: yesJournal of Open Research Software, 2023
Cuspis (Latin: [kuspis], meaning “sharp point”) is a MATLAB suite for presenting visual stimuli at different phases of the cardiac cycle and is designed to work with an MRI-compatible setup.
Valerio Villani, Manos Tsakiris
doaj   +1 more source

Serial Correlations in Single-Subject fMRI with Sub-Second TR

open access: yes, 2017
When performing statistical analysis of single-subject fMRI data, serial correlations need to be taken into account to allow for valid inference. Otherwise, the variability in the parameter estimates might be under-estimated resulting in increased false ...
Barth, Markus   +3 more
core   +1 more source

EEG–fMRI mapping of asymmetrical delta activity in a patient with refractory epilepsy is concordant with the epileptogenic region determined by intracranial EEG [PDF]

open access: yes, 2006
We studied a patient with refractory focal epilepsy using continuous EEG-correlated fMRI. Seizures were characterized by head turning to the left and clonic jerking of the left arm, suggesting a right frontal epileptogenic region.
Duncan, J.S.   +6 more
core   +1 more source

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