Results 151 to 160 of about 320,056 (253)

Effect of a single exercise bout on fasting cerebral blood flow and brain insulin sensitivity in middle‐aged to older adults

Experimental Physiology, EarlyView.
Abstract Reductions in brain insulin sensitivity and cerebral blood flow (CBF) have emerged as potential factors contributing to Alzheimer's disease and related dementia. However, no work has tested whether a single bout of exercise can raise brain insulin sensitivity in at‐risk adults. The aim of the study was to test whether a single bout of exercise
Steven K. Malin, Ankit M. Shah, Michal S. Berri, David H. Zald, Daniel J. Battillo   +4 more
wiley   +1 more source

Simulation of dB/dt‐Over‐Electric Field Cardiac Magnetostimulation Safety Ratios in 75 Body Models and 18 Gradient Systems

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1753-1761, March 2026.
ABSTRACT Purpose The IEC 60601‐2‐33 standard provides consensus‐based safety provisions for MRI equipment. Protection of patients against cardiac stimulation (CS) is based on limiting the maximum E‐field induced by MRI gradient coils. In practice, this is achieved by imposing a conservative dB/dt threshold on any gradient waveform.
Valerie Klein, Jonathan Edmonson, Mathias Davids, Natalie G. Ferris, Matthias Gebhardt, Dominik Rattenbacher, Johan S. van den Brink, Michael Steckner, Lawrence L. Wald, Bastien Guérin   +9 more
wiley   +1 more source

Longitudinal Alzheimer’s Disease Progression Modelling via Hybrid Vision Transformers and Recurrent Neural Networks With Cross‐Modal Feature Fusion

Expert Systems, Volume 43, Issue 3, March 2026.
ABSTRACT Modelling the evolution of Alzheimer's disease (AD) requires a thorough spatiotemporal study of longitudinal neuroimaging data. We propose in this paper a novel deep learning framework that uses a parallel combination of Recurrent Neural Networks (RNNs) and Vision Transformers (ViT) to extract temporal disease dynamics and spatial structural ...
Sahbi Bahroun, Gwanggil Jeon
wiley   +1 more source

Effects of Scan Length and Shrinkage on Reliability of Resting-State\n Functional Connectivity in the Human Connectome Project [PDF]

, 2016
Amanda F. Mejia, Mary Beth Nebel, Anita D. Barber, Ann S. Choe, Martin A. Lindquist   +4 more
openalex   +1 more source

Associations between accelerometer‐derived physical activity complexity, cognitive function, and plasma biomarkers of Alzheimer's disease

Alzheimer's &Dementia, Volume 22, Issue 2, February 2026.
Abstract INTRODUCTION While higher physical activity (PA) levels are linked to lower Alzheimer's disease (AD) risk, traditional PA measures overlook temporal activity patterns. METHODS We developed the activity complexity measure in 164 older adults (mean age = 65.3 years) who completed wrist‐worn accelerometry and neuropsychological tests.
Yurun Cai, Beth E. Snitz, Ann D. Cohen
wiley   +1 more source

The Neural Organization of Visual Information in the Auditory Cortex of the Congenitally Deaf

Human Brain Mapping, Volume 47, Issue 2, February 1, 2026.
Using fMRI and pRF modeling, we show that visual spatial information is represented in the auditory cortex of congenital deaf individuals through deactivation signals. These negative BOLD responses suggest a novel mechanism of cross‐modal plasticity.
Zohar Tal, Joana Sayal, Fang Fang, Yanchao Bi, Jorge Almeida, Alessio Fracasso   +5 more
wiley   +1 more source

Hippocampal subfields in aging: Sex-specific trajectories in structure and hemodynamics

NeuroImage
Sex differences in hippocampal aging have been increasingly recognized, with females showing greater vulnerability to neurodegeneration, particularly after menopause.
Jiaqi Wen, Chenyang Li, Zhe Sun, Chao Wang, Jiangyang Zhang, Xiaojun Guan, Xiaojun Xu, Thomas Wisniewski, Yulin Ge   +8 more
doaj   +1 more source

Diffantom: whole-brain diffusion MRI phantoms derived from real datasets of the Human Connectome Project [PDF]

, 2015
Oscar Estéban, Emmanuel Caruyer, Alessandro Daducci, Meritxell Bach Cuadra, Maria-J. Ledesma-Carbayo, A. Santos   +5 more
openalex   +1 more source

Characterization of the Central Sulcus Pli‐De‐Passage Fronto‐Pariétal Moyen in > 1000 Human Brains

Human Brain Mapping, Volume 47, Issue 2, February 1, 2026.
The pli‐de‐passage fronto‐pariétal moyen (PPfpm), a deep fold within the central sulcus (CS), was characterized in 2165 MRI‐derived CS depth profiles. Realignment to their deepest points enabled automated PPfpm extraction at its height (PPfpm‐I) and lateral end (PPfpm‐II).
Anna Marie Muellen, Renate Schweizer
wiley   +1 more source

The Role of MRI in Debunking the Fallacy of “Mild” Traumatic Brain Injury

Journal of Magnetic Resonance Imaging, Volume 63, Issue 2, Page 297-309, February 2026.
ABSTRACT Mild traumatic brain injury (mTBI) is a prevalent yet often overlooked public health concern due to the absence of detectable abnormalities on CT or conventional MRI scans. Approximately 18.3%–31.3% of mTBI patients experience persistent symptoms 3–6 months post‐injury, despite normal imaging results, making diagnosis and treatment challenging.
Xingye Chen, David Wright, Sohae Chung, Yvonne Lui   +3 more
wiley   +1 more source