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.
ELAN analysis detail showing pitch (red) and intensity (green) curves. The mother is building up an action arc through surprise exclamations of increasing intensity and pitch before releasing the tension through a quick page turn. Her 3.5-month-old infant is responding with increased movement, body tension, mouth dropping open and sharp intake of breath before relaxing again. Upper case letters (A–E) map upper row stills to ELAN time line.
