Main features

MacStim presents stimuli (pictures, sound, text or movies) using a text-based script. It can record user events such as reaction times from key or mouse button presses. This beta version is under development as a Carbon-compliant application working on Mac OS 9.2.2 to 10.2 and higher. Other functionality will be added incrementally.

You will need StuffIt Expander to extract either of these versions. StuffIt Expander is available from Aladdin Systems at:

All versions available here are fully functional but time-limited versions. To unlock them, contact me on as described in the on-line help in all versions of MacStim.

If you have trouble transferring scripts (with their MacStim script icon disappearing), drag and drop them onto the following applescript applet: Change2MacStim.hqx.

Contact information

I am interested in customizing these products if there is time and interest. Just drop me a line at

David Darby PhD FRACP
WhiteAnt Occasional Publishing
80 Roden St, West Melbourne VIC 3003, Australia