scispace - formally typeset
Search or ask a question

Answers from top 9 papers

More filters
Papers (9)Insight
As a result, while brain size can no longer be considered a proxy for the number of brain neurons across mammalian brains in general, it is actually a very good proxy for the number of nonneuronal cells in the brain.
These findings imply that in the intact brain, pyramidal neurons are submitted to an intense spike-independent synaptic bombardment that decreases the space constant of the cells.
These findings suggest that there is a specific relation between morphological properties of the brain stem neurons and their sensitivities to transmitters.
These results suggest that some subclasses of neurons in brain slices degrade earlier than others even when maintained in physiological condition.
The findings of this study show that, in neurologically normal individuals, brain size is a major determinant of the number of CA1 neurons.
The sparsity of the labeled neurons in certain cortical areas may reflect the existence of Corticotectal neurons with axon collaterals supplying brain structures other than the superior colliculus.
This is the first demonstration of a higher number of human neurons in the brain of newborns compared with the adult.
These results add to those from other areas of the brain demonstrating that the electrophysiological properties of pyramidal neurons are heterogeneous.
The large plasticity in brain size may be facilitated by plasticity in neuron size, in the number of neurons, or both.

Related Questions

How to calculate cortical thickness of mouse brain?4 answersThe cortical thickness of mouse brains can be calculated using an algorithm that consists of three steps: segmentation, thickness measurement, and statistical analysis among experimental groups. In the segmentation step, the neocortex is separated from other brain structures to prepare for thickness measurement. The thickness is then computed by solving a Laplacian PDE and a transport equation, which creates streamlines and computes their length. To sample thickness at corresponding points for statistical analysis, a particle correspondence algorithm is used, and thin-plate spline based interpolation is employed to increase the number of corresponding sample points. This method has been used to assess the effects of adolescent intermittent ethanol exposure on cortical thickness in rat brains.
Is there an atlas of layer 4 cortical thickness for whole brain human atlas?4 answersYes, there is an atlas of layer 4 cortical thickness for the whole brain human atlas. The first whole-brain quantitative 3D laminar atlas of the human cerebral cortex was derived from a 3D histological model of the human brain at 20 micron isotropic resolution (BigBrain). This atlas provides an unprecedented level of precision and detail, overcoming the challenges of measuring histological thickness in 2D. It allows for the segmentation of cortical layers in both hemispheres and can be used to study cortical thickness gradients and their contribution from different cortical layers. However, it is important to note that the specific layer 4 cortical thickness is not mentioned in the abstracts provided.
Can neurons vary in size?6 answers
How many neurons are contained in the brain?3 answers
How many neurons are in the body of man?9 answers
What are the largest neurons in the brain?9 answers