Results 151 to 160 of about 64,815 (293)

Constipation Is Linked to Neuroinflammation in Early Parkinson's Disease

Movement Disorders, EarlyView.
Abstract Background Constipation is a risk factor for the onset and accelerated progression of Parkinson's disease (PD), but the mechanisms underlying this association are unknown. Neuroinflammation in PD has been demonstrated in postmortem and neuroimaging studies; however, its relationship with constipation has not been investigated.
Marta Camacho, Julia C. Greenland, Alexander R.D. Peattie, Lennart R.B. Spindler, Jonathan Holbrook, Lakmini Kahanawita, Tim D. Fryer, Young T. Hong, Caroline H. Williams‐Gray   +8 more
wiley   +1 more source

Longitudinal Awake Mouse fMRI During Voluntary Locomotion Using Zero TE Imaging and a Novel Treadmill Training Protocol

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Functional MRI (fMRI) in awake rodents presents countless valuable opportunities for researchers to probe questions that may not be accessible through anesthetized models, such as voluntary locomotion. The commonly used echo planar imaging (EPI) sequence is highly sensitive to motion that occurs even outside of the imaging plane ...
Lauren Daley, Wen‐Ju Pan, Gopinath Kaundinya, Shella Keilholz   +3 more
wiley   +1 more source

Effects of Noninvasive Cervical Vagal Nerve Stimulation on Cognitive Performance But Not Brain Activation in Healthy Adults

Neuromodulation: Technology at the Neural Interface, EarlyView., 2020
Abstract Objectives While preliminary evidence suggests that noninvasive vagal nerve stimulation (nVNS) may enhance cognition, to our knowledge, no study has directly assessed the effects of nVNS on brain function and cognitive performance in healthy individuals.
Ruth Klaming, Alan N. Simmons, Andrea D. Spadoni, Imanuel Lerman   +3 more
wiley   +1 more source

Motion‐ and Field‐Robust Mesoscopic Whole‐Brain T2*$$ {T}_2^{\ast } $$‐Weighted Imaging at 7 and 11.7 T Using Servo Navigation

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To mitigate artifacts related to motion and field changes in high‐resolution T2*$$ {T}_2^{\ast } $$‐weighted human brain imaging using servo navigation at ultra‐high fields up to 11.7 T. Methods MR‐based servo navigators were integrated into a segmented 3D‐EPI sequence to allow for prospective correction of involuntary head motion and ...
Matthias Serger, Rüdiger Stirnberg, Philipp Ehses, Malte Riedel, Thomas Ulrich, Caroline Le Ster, Franck Mauconduit, Vincent Gras, Alexis Amadon, Alexandre Vignaud, Son Chu, Shajan Gunamony, Maxim Zaitsev, Nicolas Boulant, Klaas P. Pruessmann, Tony Stoecker   +15 more
wiley   +1 more source

A comes before B, like 1 comes before 2. Is the parietal cortex sensitive to ordinal relationships in both numbers and letters? An fMRI-adaptation study. [PDF]

Hum Brain Mapp, 2020
Goffin C, Vogel SE, Slipenkyj M, Ansari D.   +3 more
europepmc   +1 more source

A Pneumatically Actuated Manipulandum for Neuromotor Control Research [PDF]

, 2002
Functional magnetic resonance imaging (fMRI) techniques have great potential for identifying which neural structures are involved in the control of goal-directed reaching movements.
Ropella, Kristina M., Scheidt, Robert A., Suminski, Aaron J   +2 more
core   +1 more source

Timing Is Everything: How Subtle Timing Changes in MRI Echo Planar Imaging Can Significantly Alter Mechanical Vibrations and Sound Level

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Echo‐Planar Imaging (EPI) is central to fMRI, diffusion MRI, and many dynamic clinical applications, yet rapid gradient switching induces strong mechanical vibrations, generates acoustic noise, and contributes to ghosting artifacts—effects that intensify at ultra‐high fields.
Amir Seginer, Alexander Bratch, Shahar Goren, Edna Furman‐Haran, Noam Harel, Essa Yacoub, Rita Schmidt   +6 more
wiley   +1 more source

Automated Coregistered Segmentation for Volumetric Analysis of Multiparametric Renal MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This study aims to develop and evaluate a fully automated deep learning‐driven postprocessing pipeline for multiparametric renal MRI, enabling accurate kidney alignment, segmentation, and quantitative feature extraction within a single efficient workflow. Methods Our method has three main stages.
Aya Ghoul, Cecilia Liang, Isabelle Loster, Lavanya Umapathy, Bernd Kühn, Petros Martirosian, Ferdinand Seith, Sergios Gatidis, Thomas Küstner   +8 more
wiley   +1 more source

Domain Adaptation-enhanced searchlight: enabling classification of brain states from visual perception to mental imagery

Brain Informatics
In cognitive neuroscience and brain-computer interface research, accurately predicting imagined stimuli is crucial. This study investigates the effectiveness of Domain Adaptation (DA) in enhancing imagery prediction using primarily visual data from fMRI ...
Alexander Olza, David Soto, Roberto Santana   +2 more
doaj   +1 more source

What Role Does the Central Nervous System Play in Refractory LUTS, and What Are the Therapeutic Implications? ICI‐RS 2025

Neurourology and Urodynamics, EarlyView.
ABSTRACT Aims While many patients with lower urinary tract symptoms (LUTS) improve by treating peripheral causes, a substantial proportion continue to experience symptoms despite apparently successful interventions. Central nervous system (CNS) mechanisms could potentially contribute to persisting symptoms after the initial peripheral cause has been ...
Mathijs M. de Rijk, Michel Wyndaele, Ana Charrua, Christopher Fry, Paul Abrams, Gommert A. van Koeveringe, Anthony J. Kanai, Marcus J. Drake   +7 more
wiley   +1 more source