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.
(a) A 5-year-old autistic boy has a fully developed step gesture. All three segments of the leg move actively (see text), but his body weight does not shift at the same time, resulting in a form of goose-step. (b) The body weight only then is shifted so that the boy falls on to the outstretched leg at each step. This is a form of sequencing rather than superimposition of one movement on the other.
