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.
Mean contrast sensitivity plotted as a function visual field location for each stimulus condition (n = 9). Contrast measurements were significantly different along each meridian between all conditions, except when comparing between condition 1 (blue dashed lines) and condition 4 (pink). Error bars are ±1 SEM.
