Psychtoolbox for MATLAB
 | This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages)
No issues specified. Please specify issues, or remove this template. |
Psychophysics Toolbox Version 3 (PTB-3) is a free set of Matlab and GNU Octave functions for vision research. It makes it easy to synthesize and show accurately controlled visual and auditory stimuli and interact with the observer. It has at least twelve thousand active users, an active forum, and is highly cited. PTB-3 is based on the Psychophysics Toolbox Version 2 (PTB-2) but its Matlab extensions (in C) were rewritten to be more modular and use OpenGL.