Psychtoolbox-3 License
The Psychtoolbox-3 and its source code are freely redistributable under the terms of the GNU General Public License (GPL) as published by the Free Software Foundation. Simply put, the GPL says that anyone who redistributes the software, with or without changes, must pass along the freedom to further copy and change it. By distributing the complete source code for Psychtoolbox-3 under the terms of the GPL, we guarantee that you and all other users will have the freedom to redistribute and change Psychtoolbox. The exact license text of Psychtoolbox is included as License.txt in the root folder of any Psychtoolbox-3 installation. An online version of the license can be found at the GPL page of the Free Software Foundation.
