An official website of the United States government
Here's how you know
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.
Change in performance with Fidelity120 relative to HiRes, for each of five vowel and consonant measures. Comparisons reflect data obtained with Fidelity120 during the main study (Fid condition) or after 3 months of additional experience (Fid3M condition).