Results 131 to 140 of about 320,056 (253)

Investigating microstructural variation in the human hippocampus using non-negative matrix factorization

, 2019
In this work we use non-negative matrix factorization to identify patterns of microstructural variance in the human hippocampus. We utilize high-resolution structural and diffusion magnetic resonance imaging data from the Human Connectome Project to ...
Chakravarty, M., Chen, A., Devenyi, G., Germann, J., Patel, R., Patel, S., Steele, C., Tardif, C.   +7 more
core   +1 more source

Spatial Image Gradient Estimation From the Diffusion MRI Profile

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose In the course of diffusion, water molecules encounter varying values for the relaxation‐time properties of the underlying tissue. This factor, which has rarely been accounted for in diffusion MRI (dMRI), is modeled in this work, allowing for the estimation of the gradient of relaxation‐time properties from the dMRI signal. Methods With
Iman Aganj, Thorsten Feiweier, John E. Kirsch, Bruce R. Fischl, Andre J. van der Kouwe   +4 more
wiley   +1 more source

Genetics of the Young Adult Human Connectome Project

, 2018
Poster presented at OHBM 2018.
Ganjgahi, Habib, Bijsterbosch, Janine, E Warwick Daw, Fieremans, Els, Glahn, David, Glasser, Matthew, Harms, Micheal, M Hodge, Jbabdi, Saad, Kochunov, Peter, Marchini, Jonathon, Novikov, Dmitry, Smith, Steve, Sotiropoulos, Stamatios, Essen, David Van, Veraart, Jelle, Warrington, Shaun, Winkler, Anderson, Nichols, Thomas   +18 more
openaire   +1 more source

Evolution and development of Brain Networks: From Caenorhabditis elegans to Homo sapiens

, 2011
Neural networks show a progressive increase in complexity during the time course of evolution. From diffuse nerve nets in Cnidaria to modular, hierarchical systems in macaque and humans, there is a gradual shift from simple processes involving a limited ...
Kaiser, Marcus, Varier, Sreedevi
core   +1 more source

Next Generation 7 Tesla Arterial Spin Labeling With Rotated Spiral Acquisition Enables Mesoscale Resolution in 3D Brain Perfusion and Functional MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To achieve high resolution (≤ 1 mm isotropic) whole‐brain perfusion imaging at 7 T with next generation ASL pulse sequence, reconstruction algorithm, and MRI hardware. Methods We capitalized on three major innovations: (1) FLASH‐based pseudo‐Continuous ASL (pCASL) sequence with rotated golden‐angle stack‐of‐spirals (rGA‐SoS) sampling; (
Chenyang Zhao, Fanhua Guo, Zidong Yang, Xingfeng Shao, Samantha J. Ma, Alexander J. S. Beckett, An T. Vu, David A. Feinberg, Danny J. J. Wang   +8 more
wiley   +1 more source

Experimental Design Modulates Variance in BOLD Activation: The Variance Design General Linear Model

, 2018
Typical fMRI studies have focused on either the mean trend in the blood-oxygen-level-dependent (BOLD) time course or functional connectivity (FC). However, other statistics of the neuroimaging data may contain important information.
Gaut, Garren, Li, Xiangrui, Lu, Zhong-Lin, Steyvers, Mark   +3 more
core   +1 more source

Deciphering diverse cell‐death patterns to predict the prognosis and potential therapy target of hepatocellular carcinoma patients

VIEW, EarlyView.
Abstract Ninety percent of all primary liver malignancies are hepatocellular carcinomas (HCC), making liver cancer the third most common cause of cancer‐associated mortality. Different patterns of programmed cell death (PCD) are crucial for the survival of tumors, and they might serve as a prognostic marker for HCC.
Lin Ding, Qian Li, Wenjing Yang, Te Liu, Tongtong Tian, Yu Liu, Chunyan Zhang, Baishen Pan, Beili Wang, Fan Wu, Wei Guo   +10 more
wiley   +1 more source

Structural brain network: What is the effect of LiFE optimization of whole brain tractography?

Frontiers in Computational Neuroscience, 2016
Structural brain networks constructed based on diffusion-weighted MRI (dMRI) have provided a systems perspective to explore the organization of the human brain.
Shouliang eQi, Shouliang eQi, Shouliang eQi, Stephan eMeesters, Stephan eMeesters, Klaas eNicolay, Bart M. ter Haar Romeny, Bart M. ter Haar Romeny, Pauly eOssenblok, Pauly eOssenblok   +9 more
doaj   +1 more source

The Frequent Network Neighborhood Mapping of the human hippocampus shows much more frequent neighbor sets in males than in females.

PLoS ONE, 2020
In the study of the human connectome, the vertices and the edges of the network of the human brain are analyzed: the vertices of the graphs are the anatomically identified gray matter areas of the subjects; this set is exactly the same for all the ...
Máté Fellner, Bálint Varga, Vince Grolmusz   +2 more
doaj   +1 more source

Psychedelics, entactogens and psychoplastogens for depression and related disorders

British Journal of Pharmacology, EarlyView.
Currently, the most actively investigated rapidly acting antidepressants, anxiolytics and/or anti PTSD agents, include psychedelics e.g. psilocybin, LSD, N,N‐dimethyltryptamine, ayahuasca; non‐hallucinogenic entactogens, e.g. MDMA; psychoplastogens which rapidly promote neuroplasticity, e.g.
Daniel Hoyer
wiley   +1 more source