Results 241 to 250 of about 126,003 (308)

Rapid Tissue‐CSF Water Exchange in the Human Brain Revealed by Magnetization Transfer Indirect Spin Labeling

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 6, Page 3270-3283, June 2026.
ABSTRACT Purpose To apply the Magnetization Transfer Indirect Spin Labeling (MISL) MRI technique for quantifying tissue‐CSF water exchange in the human brain, and to investigate its utility in (1) evaluating tissue‐CSF water exchange within perivascular spaces (PVS), and (2) characterizing altered water exchange dynamics in pathologic conditions ...
Yihan Wu   +8 more
wiley   +1 more source

10.5 T In Vivo Head Imaging With Universal RF Shimming

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 5, Page 2776-2785, May 2026.
ABSTRACT Purpose Brain MR imaging at 10.5 T ultra‐high field offers significant improvements in signal‐to‐noise ratio (SNR), but faces challenges with B1+ inhomogeneity. Parallel‐transmission (pTx) can be used to achieve a more uniform RF field distribution, but necessitates the use of B1+ calibration in the region of interest.
Young Woo Park   +4 more
wiley   +1 more source

Higher THC Concentration Medicinal Cannabis Products Efficacy and Safety Considerations: A Rapid Review

open access: yesDrug and Alcohol Review, Volume 45, Issue 4, May 2026.
ABSTRACT Issues Higher delta‐9‐tetrahydrocannabinol (THC) concentration medicinal cannabis products are characterised by a higher THC and minimal cannabidiol (CBD) content. This rapid review aims to systematically summarise and evaluate the available evidence regarding the efficacy and safety of higher THC potency medicinal cannabis products relevant ...
Myfanwy Graham   +3 more
wiley   +1 more source

The Development of Temporal Memory for Complex Events

open access: yesDevelopmental Science, Volume 29, Issue 3, May 2026.
ABSTRACT Remembering when past events occurred is a key component of episodic memory, yet its developmental trajectory remains only partially understood. This study examined how children aged 6 and 10, compared to young adults, recall the timing of events embedded in an 11‐min cartoon.
Matteo Frisoni   +4 more
wiley   +1 more source

Sleep Alters the Velocity of Physiological Brain Pulsations in Humans

open access: yesAdvanced Science, Volume 13, Issue 19, 2 April 2026.
Sleep alters I/CSF oscillatory flow, driven by increased respiratory (29%) and vasomotor pulsation (21%) velocities, while cardiovascular pulsations decreased by (22%). Velocity is quantified using optical flow analysis of MREG data. Spectral power increases alongside these pulsations (spatial correlation, r = 0.35 and r = 0.39, respectively ...
Ahmed Elabasy   +13 more
wiley   +1 more source

A Meta‐Analysis of Functional Magnetic Resonance Imaging Studies on In‐Group and Out‐Group Categorization

open access: yesBrain and Behavior, Volume 16, Issue 4, April 2026.
Activation likelihood estimation meta‐analysis of 168 functional magnetic resonance imaging experiments reveals distinct neural substrates for in‐group (left insula, inferior frontal gyrus) versus out‐group (right presupplementary motor area) processing.
Kelly H. L. Sng   +3 more
wiley   +1 more source

Functional Brain Network Abnormalities and Aripiprazole's Modulatory Effects in Pediatric Tic Disorder

open access: yesBrain and Behavior, Volume 16, Issue 4, April 2026.
Pediatric tic disorder patients show frontal functional hypo‐connectivity with compensatory network adaptations. Aripiprazole modulates global brain network connectivity and topology but fails to normalize frontal deficits, providing neurophysiological insights into TD pathophysiology and the drug's therapeutic mechanism. ABSTRACT Background This study
Yuxin Xiang   +5 more
wiley   +1 more source

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