- Identification of growth seeds in the neonate brain through surfacic Helmholtz decompositionJulien Lefevre
LNAO, Neurospin, CEA, Saclay, France
Inf Process Med Imaging 21:252-63. 2009..We show the reproducibility of such growth seeds across 4 neonates and make a link of this new concept to the "sulcal roots" one proposed to explain the variability of human brain anatomy...
- Larger is twistier: Spectral analysis of gyrification (SPANGY) applied to adult brain size polymorphismDavid Germanaud
UMR663, INSERM Université Paris Descartes, Paris, France CEA, I2BM, DSV, Neurospin, LBIOM, Gif Yvette, France IFR49, Neurospin, Gif Yvette, France Electronic address
Neuroimage 63:1257-72. 2012..Hence, we demonstrate that large brains are twistier than smaller ones because of an increased number of high spatial frequency folds, ramifications and kinks that accommodate the allometric increase of cortical surface...
- Optical flow approaches to the identification of brain dynamicsJulien Lefevre
NeuroSpin Center, Atomic Energy Commission CEA, Saclay, France
Hum Brain Mapp 30:1887-97. 2009..Local dynamic features from a variety of brain systems may also be explored through this methodology, as illustrated by experimental data on fast responses in the visual system as revealed by MEEG source imaging...