You could try the Orientation Rehabilitation Module developed by Ben-Yishay et al in the early 90's. I will try to find the details on how to obtain it as soon as I have time. Regards, Anne -----Original Message----- From: [log in to unmask] [mailto:[log in to unmask]] On Behalf Of [log in to unmask] Sent: Thursday, 12 October 2000 18:28 To: [log in to unmask] Subject: Reaction timing software Does anyone know of any software that can be used to time a person's reaction time to visual stimuli. The sort of thing I have in mind is, object appears on screen, subject presses key/mouse button, object disappears. Process repeats at random intervals. Timing data is stored for later analysis. Any offers. Phil Phil Satchell - Technical Project Officer Office for Students with Disabilities, The Open University +44 (0)1908-858214 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%