News

Version 1.00.03 was released in June 2009. There is now a standalone download for Windows and OS X (containing its own python and dependencies).

ShapeStim and SimpleImageStim have been added, and many bugs fixed. See the changelog for further details.

You can read the following peer-reviewed publications about PsychoPy. If you use PsychoPy for your work please cite one (or more!) of them. The first discusses how it works, the second focusses more on how to use it:

1. Peirce, JW (2007) PsychoPy - Psychophysics software in Python. J Neurosci Methods, 162(1-2):8-13
2. Peirce, JW (2009) Generating stimuli for neuroscience using PsychoPy. Frontiers in Neuroinformatics. (2009) 2:10. doi:10.3389/neuro.11.010.2008 full text

Overview

PsychoPy is an open-source package for creating psychology stimuli in Python (A real and free alternative to Matlab). PsychoPy combines the graphical strengths of OpenGL with the easy Python syntax to give psychophysics a free and simple stimulus presentation and control package.

The goal is to provide, for the busy scientist (including me!), tools to control timing and windowing and a simple set of pre-packaged stimuli and methods. The code is platform independent, using Python and C libraries that are widely available.

Features

• Platform independent (used in numerous labs on Win, OS X and linux)
• Simple, clean syntax (see the demo code)
• Freeware (and based on totally free libraries)
• Simple (or complex) GUIs via wxPython
• Easy interfaces to joysticks, mice, keyboards
• Easy interface to parallel and serial ports
• Unicode text rendering in any TrueType font
• Multi-monitor support (and multiple windows)
• Plays movies (mpg, DivX, avi, QuickTime...) as stimuli
• All stimuli rendered in realtime (so can be modified in realtime too)
• Simple routines for staircase and constant stimuli experimental methods as well as curve-fitting and bootstrapping
• Integration with CRS Bits++(for 14bit luminance resolution)
• Integration with Spectrascan PR650 for easy monitor calibration

Please send feedback to the mailing list and edit these pages if you find any errors.

Similar Projects: PsychToolbox for Matlab/C, VisionEgg for Python