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 with PPA progression of therapeutic games difficulty level. Each color represents a different game, which had difficulty levels between 1 (easiest) and 10 (hardest). Subject attained the highest level in all but one game. © Bright Cloud International Corp. Reprinted by permission.
