Results 191 to 200 of about 72,622 (298)

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

The Effect of Caffeine Consumption and Acute Withdrawal on Resting-State fMRI Brain Connectivity, Mood and Cognition. [PDF]

Eur J Neurosci
Sevenoaks T, Lancelotte F, Souter N, Stafford L, Rae C, Yeomans M.   +5 more
europepmc   +1 more source

Psychedelics as pharmacotherapeutics for substance use disorders: A scoping review on clinical trials and perspectives on underlying neurobiology

British Journal of Pharmacology, Volume 183, Issue 14, Page 4022-4047, July 2026.
Theorized mechanism of dopamine homeostasis restoration in the nucleus accumbens core induced by a psychedelic intervention. Abstract Psychedelics have garnered great attention in recent years as treatments for major depressive disorder (MDD) and treatment‐resistant depression because of their ability to alter consciousness and afflicted cognitive ...
Lucas Wittenkeller, Gary Gudelsky, T. John Winhusen, Davide Amato   +3 more
wiley   +1 more source

Distinct and shared neurobiological patterns in PTSD and CPTSD: evidence from resting-state fMRI. [PDF]

BMC Psychiatry
Zhang H, Xiao H, Zhang Q, Hou S, Wu Y, Yuan M, Zhang J, Qiu C, Lui S, Zhang W, Zhu H.   +10 more
europepmc   +1 more source

Postprandial Glucagon Action in the Human Brain

Diabetes, Obesity and Metabolism, Volume 28, Issue 7, Page 5926-5938, July 2026.
ABSTRACT Aims Elevated fasting glucagon is linked to hyperglycemia, but postprandial glucagon effects are less understood. Recent evidence suggests metabolic benefits of rising glucagon after oral glucose intake, potentially impacting brain‐mediated whole‐body metabolism.
Robert Wagner, Stephanie Kullmann, Julia Hummel, Katsiaryna Prystupa, Elena Hosenfeld, Ralf Veit, Andreas L. Birkenfeld, Hans‐Ulrich Häring, Hubert Preissl, Andreas Fritsche, Andreas Peter, Martin Heni   +11 more
wiley   +1 more source

Quadrato Motor Training in Parkinson's Disease: Resting-State fMRI Changes and Exploratory Whole-Brain Radiomics. [PDF]

Bioengineering (Basel)
Quattrocchi CC, Piervincenzi C, Di Giacopo R, Ottaviani D, Malaguti MC, Longo C, Cattoi F, Petsas N, Verdone L, Caserta M, Venditti S, Giometto B, Franciosi R, Vaccarino F, Parillo M, Ben-Soussan TD.   +15 more
europepmc   +1 more source

Conversational AI Agents: The Effect of Process and Outcome Variation on Anthropomorphism and Trust

Information Systems Journal, Volume 36, Issue 4, Page 597-623, July 2026.
ABSTRACT Organisations increasingly deploy conversational AI agents (CAs) in agentic roles where behavioural variations are inevitable. Prior work often conflates two distinct forms of variation: outcome variation (where success fluctuates) and process variation (where the path to completion varies).
Kambiz Saffarizadeh, Mark Keil
wiley   +1 more source