Results 11 to 20 of about 172,524 (297)

Pitfalls in fMRI [PDF]

open access: yesEuropean Radiology, 2009
Several different techniques allow a functional assessment of neuronal activations by magnetic resonance imaging (fMRI). The by far most influential fMRI technique is based on a local T2*-sensitive hemodynamic response to neuronal activation, also known as the blood oxygenation level dependent or BOLD effect. Consequently, the term 'fMRI' is often used
Andreas J. Bartsch   +3 more
openaire   +3 more sources

Molecular fMRI [PDF]

open access: yesThe Journal of Neuroscience, 2016
Comprehensive analysis of brain function depends on understanding the dynamics of diverse neural signaling processes over large tissue volumes in intact animals and humans. Most existing approaches to measuring brain signaling suffer from limited tissue penetration, poor resolution, or lack of specificity for well-defined neural events. Here we discuss
Barandov, Ali   +2 more
openaire   +4 more sources

DC Shifts-fMRI: A Supplement to Event-Related fMRI [PDF]

open access: yesFrontiers in Computational Neuroscience, 2019
Event-related fMRI have been widely used in locating brain regions which respond to specific tasks. However, activities of brain regions which modulate or indirectly participate in the response to a specific task are not event-related. Event-related fMRI can't locate these regulatory regions, detrimental to the integrity of the result that event ...
Qiang Li   +6 more
openaire   +4 more sources

Dynamic models in fMRI [PDF]

open access: yesMagnetic Resonance in Medicine, 2000
Most statistical methods for assessing activated voxels in fMRI experiments are based on correlation or regression analysis. In this context the main assumptions are that the baseline can be described by a few known basis-functions or variables and that the effect of the stimulus, i.e. the activation, stays constant over time. As these assumptions are
Dorothee P. Auer   +2 more
openaire   +3 more sources

Regression DCM for fMRI

open access: yesNeuroImage, 2017
ISSN:1095 ...
Frässle, Stefan   +5 more
openaire   +5 more sources

PARCELLATION OF THE CINGULATE CORTEX AT REST AND DURING TASKS: A META-ANALYTIC CLUSTERING AND EXPERIMENTAL STUDY

open access: yesFrontiers in Human Neuroscience, 2013
Anatomical, morphological and histological data have consistently shown that the cingulate cortex can be divided into four main regions. However, less is known about parcellations of the cingulate cortex when involved in active tasks.
Diana M.E. Torta   +7 more
doaj   +1 more source

A New Rehabilitative Mechanism in Primary Motor Cortex After Peripheral Trauma

open access: yesFrontiers in Neurology, 2020
Homuncular organization, i.e., the neuronal representation of the human body within the primary motor cortex, is one of the most fundamental principles of the human brain.
Florian Ph. S. Fischmeister   +12 more
doaj   +1 more source

Perceptually relevant remapping of human somatotopy in 24 hours

open access: yeseLife, 2016
Experience-dependent reorganisation of functional maps in the cerebral cortex is well described in the primary sensory cortices. However, there is relatively little evidence for such cortical reorganisation over the short-term.
James Kolasinski   +6 more
doaj   +1 more source

A companion to the preclinical common data elements and case report forms for in vivo rodent neuroimaging: A report of the TASK3‐WG3 Neuroimaging Working Group of the ILAE/AES Joint Translational Task Force

open access: yesEpilepsia Open, EarlyView., 2022
Abstract The International League Against Epilepsy/American Epilepsy Society (ILAE/AES) Joint Translational Task Force established the TASK3 working groups to create common data elements (CDEs) for various aspects of preclinical epilepsy research studies, which could help improve the standardization of experimental designs.
Erwin A. van Vliet   +9 more
wiley   +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

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