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.
Flow chart depicting permutation methodology used to build null distributions to assess the statistical significance of the AG ROIs' (a) overall model significance, age, and sex effects, as well as (b) age by sex interactions. LR: likelihood ratio [Color figure can be viewed at http://wileyonlinelibrary.com]
