Programs for visual psychophysics on the Amiga: A tutorial |
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Authors: | Stuart Anstis Michael Paradiso |
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Institution: | 1. Department of Psychology, York University, 4700 Keele St., M3J 1P3, North York, Ontario, Canada 2. Smith-Kettlewell Eye Research Foundation, San Francisco, California
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Abstract: | A typical psychophysical experiment presents a sequence of visual stimuli to an observer and collects and stores the responses for later analysis. Although computers can speed up this process, paint programs that allow one to prepare visual stimuli without programming cannot read responses from the mouse or keyboard, whereas BASIC and other programming languages that allow one to collect and store observer’s responses unfortunately cannot handle prepainted pictures. A new programming language called The Director provides the best of both worlds. Its BASIC-like commands can manipulate prepainted pictures, read responses made with the mouse and keyboard, and save these on disk for later analysis. A dozen sample programs are provided. |
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