Results 191 to 200 of about 249,333 (304)

Effect of repeated hot water immersion on cognitive performance, cerebrovascular function, sleep and biomarkers of neurodegeneration in older adults

Experimental Physiology, EarlyView.
Abstract Ageing is associated with cognitive decline and increased risk of developing neurodegenerative disease. Repeated passive heating, using hot water immersion (HWI), may improve cognitive performance via improved cerebral oxygenation, but this is yet to be examined in older adults.
Daniel D. Piccolo, Jo Corbett, Joseph T. Costello, Thomas B. Williams, Thomas J. James, Janis K. Shute, Mohammad G. A. Alnajjar, Luke C. Hudson, Poppy A. Marsh, Veronika Praskacova, Harry S. Mayes, Michael Tipton, Maria Perissiou, Melitta A. McNarry, Kelly A. Mackintosh, Zoe L. Saynor, Anthony I. Shepherd   +16 more
wiley   +1 more source

Computational learning phenotypes are not related to individual differences in resting-state fMRI connectivity. [PDF]

Front Neurosci
Dastin-van Rijn E, Yu LQ, Scott DN, Zhao Y, Eloyan A, Filipowicz A, Kable JW, Feng T, Nassar M.   +8 more
europepmc   +1 more source

Registered Clinical Trials of Ayahuasca and DMT: A Scoping Review

Clinical Pharmacology &Therapeutics, Volume 120, Issue 1, Page 94-108, July 2026.
Interest in ayahuasca and its main component, N,N‐Dimethyltryptamine (DMT), has currently moved from historical and experimental use into modern clinical development. Yet, current evidence is fragmented, and systematic mapping of trial methods and design choices remains limited.
Tijana Stojanović, Kent W. Nilsson, Robert Fredriksson, Helgi B. Schiöth, Thiago C. Moulin   +4 more
wiley   +1 more source

Altered regional homogeneity in Parkinson's disease with mild cognitive impairment: a resting-state fMRI study. [PDF]

Front Psychol
Zhu X, Zhou J, Wei Q, Pu H, Chen Y, Zhu X, Li B, Liu S.   +7 more
europepmc   +1 more source

Clinically Feasible White Matter Fiber Tractography in Peritumoral Zones With Cerebral Vasogenic Edema

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 287-301, July 2026.
ABSTRACT Purpose In diffusion MRI, vasogenic edema manifests as a major fraction of isotropic water that dilutes the anisotropic intra‐axonal portion of the signal. Many tractography algorithms mistake vasogenic edema for the white matter boundary and terminate tracking to prevent producing spurious streamlines.
Patryk Filipiak, Timothy M. Shepherd, Kamri Clarke, Gaia Ressa, Dimitris G. Placantonakis, Fernando E. Boada, Steven H. Baete   +6 more
wiley   +1 more source

Revisiting Amplitude of Low-Frequency Fluctuations (ALFF) in Resting-State fMRI: Clarifications and Improvements. [PDF]

Hum Brain Mapp
Huang L, Jabakhanji R, Vigotsky AD, Branco P, Baliki MN, Apkarian AV.   +5 more
europepmc   +1 more source

Respiration Can Trigger Cerebrovascular Reactivity: A Novel Method to Quantify Cerebrovascular Resistance Dynamics Using Real‐Time Phase‐Contrast MRI

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 83-95, July 2026.
ABSTRACT Purpose To directly quantify respiration‐driven cerebrovascular resistance dynamics (CRD) using a gas‐free MRI framework based on the internal‐to‐external artery carotid flow ratio (ratio_Q). Theory and Methods Two independent datasets (n = 10 and n = 17) were used to evaluate repeatability and to compare breathing conditions.
Pan Liu, Qiuting Wen, Kimi Owashi, Jean‐Marc Constans, Cyrille Capel, Olivier Balédent   +5 more
wiley   +1 more source

Resting-state fMRI in women with functional constipation with or without stress urinary incontinence. [PDF]

Front Neurol
Xie Y, Dang W, Li X, Ai K, Zhang H, Hu M, Zhao R, He F, Zhu R.   +8 more
europepmc   +1 more source

Double Asymmetric Spin Echo EPI (dASE‐EPI) Enables fMRI of the Entire Rat Brain at 9.4 T

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 366-373, July 2026.
ABSTRACT Purpose Development and evaluation of a double asymmetric spin echo planar imaging (dASE‐EPI) sequence to balance sensitivity to blood oxygenation level‐dependent (BOLD) contrast with mitigation of susceptibility‐induced intravoxel spin dephasing in ultra high‐field rodent brain imaging.
Kyle A. Johnson, Hanbing Lu, Jason W. Sidabras   +2 more
wiley   +1 more source

MRI Goes Mobile: Assessing the Reliability and Repeatability of a Mobile vs. Stationary 1.5 T MRI for Functional Neuroscience Studies

NMR in Biomedicine, Volume 39, Issue 7, July 2026.
We present a technical feasibility study validating two mobile 1.5 T MRI scanners against a stationary system using a five‐subject test‐retest protocol (N = 50 datasets). Following relocation, hardware performance remained stable, with no systematic bias in B0 homogeneity or B1+ maps.
Christoph Stefan Aigner, Caroline Garcia Forlim, Davide Santoro, Nils C. Bodammer, Rüdiger Brühl, Sonja Sudimac, Katharina Schmalen, Sebastian Schröder, Siawoosh Mohammadi, Simone Kühn   +9 more
wiley   +1 more source