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.
Elicited communication about sets that do and do not change in number. Graph displays how often homesigners gave back the number gesture they were shown originally after transformations that did change number (two bars on right: removing one object, doubling the number of objects) and transformations that did not change number (three bars on left: adding back the one object that was taken away, leaving the objects alone, stirring the objects). Error bars indicate SE.
