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.
Visual attention (i.e. duration of looking towards the speaker in the 30 seconds ‘after' minus 30 seconds ‘before' playback) paid to appropriate and inappropriate vocal exchanges (respecting or not the turn-taking rule) in relation to listener's age. *P≤0.05, NSP>0.05.
