How can we thank you for developing this toolbox?
We repeat after Denis Pelli and David Brainard: Do not thank us, cite us. This is not only nice for our citation records, but will also aid us in obtaining resources to continue supporting the development and support of this toolbox.
If you want to acknowledge the use of this software when you publish your research, you could do so in the following way:
"We wrote our experiments in Matlab, using the Psychophysics and Eyelink Toolbox extensions (Brainard, 1997; Pelli, 1997; Cornelissen, Peters & Palmer, 2002; see http://psychtoolbox.org/)."
Brainard, D. H. (1997) The Psychophysics Toolbox, Spatial Vision 10:433-436.
Cornelissen, F.W., Peters. E., Palmer, J. (2002). The Eyelink Toolbox: Eye tracking with MATLAB and the Psychophysics Toolbox. Behavior Research Methods, Instruments & Computers, 34, 613-617.
Pelli, D. G. (1997) The VideoToolbox software for visual psychophysics: Transforming numbers into movies, Spatial Vision 10:437-442.