نتایج جستجو برای: white matter
تعداد نتایج: 368003 فیلتر نتایج به سال:
Background and Aim: The methods for detecting brain activation with fMRI, MRI provides a way to measure the anatomical connections which enable lightning-fast communication among neurons that specialize in different kinds of brain functions. Diffusion tensor imaging is able to measure the direction of bundles of the axonal fibers which are all aligned. Besides mapping white matter fiber tracts,...
In this study, the vertical, transverse and oblique diameters of the spinal cord segments (C1, C6, C12, C18, T1, T4, L1, L4, L6 and L8) and the ratio of gray matter to white matter in chick (l month) and adult (18 months) male ostriches, each group consisted of 3 animals, were measured with standard micrometric method using 6 μm thick sections by light microscope. With advancement of age, the r...
HVC→RA neurons. For some birds, song deterioration This article offers a rare glimpse into the regulation occurred during the first week after induced death. This of new cell recruitment into a fully mature brain. Disdeterioration was then followed by variable recovery to covering the mechanisms governing the type of neuron normal song production, during a time concurrent with added and its pla...
Neuroimaging findings have proposed that some brain regions including the precuneus, posterior cingulate, and medial prefrontal cortex play an essential role of a structural core in the brain. Network organization endures rapid alterations in development with changes in axonal synaptic connectivity, white matter volume, and the thickness of corresponding cortical regions. Structural maturation ...
Grey matter volume and cortical thickness are the two most widely used measures for detecting grey matter morphometric changes in various diseases such as schizophrenia. However, these two measures only share partial overlapping regions in identifying morphometric changes. Few studies have investigated the contributions of the potential factors to the differences of grey matter volume and corti...
Introduction: Gestational diabetes induces developmental disorders in different parts of CNS and can change dimensions of the cerebrum, cerebellum and spinal cord. Different species of ginseng have been used for many years to control diabetes. This study investigated effect of extract of Panax ginseng on histomorphometric changes on cerebrum and cerebellum in 14 days offsprings rat from diabet...
BACKGROUND AND PURPOSE As in adult imaging, FLAIR can be applied to pediatric brain imaging, and this requires an appreciation of the normal pediatric brain appearance by FLAIR imaging. The purpose of this study was to describe the MR appearance of the brain in normal infants and young children as demonstrated by fluid-attenuated inversion-recovery (FLAIR) MR imaging. METHODS We retrospective...
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