It so happens that an unusually large number of brain-related genes are situated on the X chromosome.
Reading requires coordinated neural processing across a large number of brain regions.
The anatomical distribution of neurotransmitter receptors is now often studied using quantitative autoradiography, but the large number of brain regions involved raises serious problems for statistical analysis of such data.
As a result, we have a large number of brain-damaged children.
There is a great need, therefore, for a large number of brain donations from people both with and without brain disorders.
Although important differences were observed (around 90% of all transcripts examined presented variations in the alternative splicing index in brain and blood), a large number of brain transcripts (4,100) co-expressed in blood samples.
Left hemisphere dominance in action observation is in accord with a large number of brain imaging studies showing prevalence of this hemisphere during the observation of object-directed motor acts [58], [59], [60], [61], [62].
The quantitative analysis of a large number of brain metabolites allowed us to obtain, for the first time, a comprehensive characterization of the metabolic phenotype associated with Mecp2 mutation.
We also hypothesized that such short exposures would not induce wavelength-specific responses in a large number of brain areas but would mainly affect a few areas involved in the establishment of the responses, presumably subcortical and brainstem areas.
In this way, mammals whose brain scales with economical neuronal scaling rules, such as primates, have a large number of brain neurons for a given body size, and would accordingly be expected to have a larger relative brain metabolic rate than other mammals, such as rodents, which have a smaller number of brain neurons for a same body or brain size [24], [25].
