Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Cortical thickness covaries with cortical surface area but not with neuronal density. Points represent the average values for each of the 10 species analyzed. (a) Cortical thickness does not correlate with neuronal density in the cerebral cortex. (b) Cortical thickness increases slowly as a power function of cortical surface. (c) Neuronal density in the cortex does not covary with cortical surface area. P values of the plotted power functions are indicated.
