Figure 2.
Duration of time on eyes and mouth for 6-, 9-, and 12-month-olds. A significant interaction between age and region showed decreasing attention to eyes and increasing attention to mouths over the second half of the first year of life.
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.