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.
Power and linear function fits to the CBF-CBV relationship across all ROIs. Each curve or line was obtained from 20 data points (10 subjects in 2 conditions, rest or activation, each). Both power exponents and slopes consistently decrease with increasing ROI sizes.
