Introduction to Psychtoolbox

Abstract

In this tutorial article, we introduce Psychophysics Toolbox Version 3 (PTB-3). PTB-3 is a free set of functions developed for vision researchers, being able to handle usual experiments of cognitive psychology. PTB-3 is designed to be used with MATLAB or Octave on MacOSX, Windows and Linux systems. As such, PTB-3 would be beneficial for many psychologists as a tool to run their experiments. We demonstrate easy-to-use features of PTB-3, providing primary information of PTB-3 and MATLAB. Our example consists of three main components of a computer program to run an experiment for human cognition; preparing variables, running trials, and saving data. All source codes are available from the web site of the first author.