# Psychophysics toolbox for Matlab v4.2

**URL:** <https://psychtoolbox.discourse.group/t/psychophysics-toolbox-for-matlab-v4-2/1212>\
**Category:** Uncategorized\
**Created:** [October 28, 2003, 1:41pm UTC](https://psychtoolbox.discourse.group/t/psychophysics-toolbox-for-matlab-v4-2/1212 "2003-10-28T13:41:49Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Allen\_Ingling](https://avatars.discourse-cdn.com/v4/letter/a/a183cd/32.png) [@Allen\_Ingling](https://psychtoolbox.discourse.group/u/Allen_Ingling)\
**Post date:** [October 28, 2003, 1:41pm UTC](https://psychtoolbox.discourse.group/t/psychophysics-toolbox-for-matlab-v4-2/1212/1 "2003-10-28T13:41:49Z")

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Hi,

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Is there a version of the psychophysics toolbox for Matlab v.4.2 on the mac? I know it's very old but it's the only version we have that's not for OS X. 

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Thanks

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Tom Morey

University of Cambridge

Cambridge

UK

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