Results 241 to 250 of about 126,003 (308)
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
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
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
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
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
Combined Ionizing Radiation Exposure by Gamma Rays and Carbon-12 Nuclei Increases Neurotrophic Factor Content and Prevents Age-Associated Decreases in the Volume of the Sensorimotor Cortex in Rats. [PDF]
Kokhan VS +3 more
europepmc +1 more source
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
Patients with chronic ankle instability exhibit increased sensorimotor cortex activation and correlation with poorer lateral balance control ability during single-leg stance: a FNIRS study. [PDF]
Liu N, Yang C, Song Q, Yang F, Chen Y.
europepmc +1 more source
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

