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.
Subject performance on the secondary task, either auditory (red bars) or visual (green bars). The interference factor is defined as the ratio between dual-task and single-task thresholds (a value of one meaning no interference between modalities.
