For flexible experiment building from a graphical user interface, supporting precise timing, a wide range of stimuli and dynamic rendering (update and control your stimuli on every screen refresh).
PsychoPy® is a free cross-platform package allowing you to run a wide range of experiments in the behavioral sciences (neuroscience, psychology, psychophysics, linguistics...)
This is a community project. Users have all the source code. Users are the developers. Users support each other.
Free yourself from simple static stimuli! You can update your stimulus interactively on every screen refresh!
Send and receive triggers to your hardware at precise times
Access to wide range of hardware (eye trackers, button boxes, trigger systems...)