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.
eERG amplitude as a function of stimulus level for S2 (A), S3 (B) and S5 (C). Insets show the correlation coefficients of the linear regression analysis and significance level of F-tests on the slope. One value was excluded from analysis in S3 (open circle). Vertical lines: subjective threshold; horizontal lines: objective threshold (2·SD).
