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About PsychoPy

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PsychoPy is an open-source application to allow the presentation of stimuli and collection of data for a wide range of neuroscience, psychology and psychophysics experiments. It’s a free, powerful alternative to Presentation™ or e-Prime™, written in Python (a free alternative to Matlab™ ).


Latest version: 1.81.00 was released October 2014, with improved cross-version compatibility (including the ability for scripts to specify the version of the lib they should run on) and additional hardware support

See complete Changelog for complete list of additions and fixes