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mgl:taskreferenceeyetracking [2010/03/26 23:15] (current)
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 +====== Integrating eye tracking with a task  ======
 +
 +
 +There is a generic interface to the eye tracking functionality. As long as the appropriate callback functions are written for an eye tracker, no code needs to be changed in your task.
 +
 +To configure MGL to use an eye tracker you must initialize the eye tracker support. The eye tracker configuration is specified in the eyetracker field of myscreen.
 +
 +You should start by specifying whether to save the data (in a file) and what data you need.
 +<code matlab>
 + ​myscreen.eyetracker.savedata = true;
 + ​myscreen.eyetracker.data = [1 1 1 0]; % don't need link events
 +</​code>​
 +
 +You also need to specify one of your tasks (or which of your phases) you want to use to control the eye data timing. This task will define what is a block, trial, etc.
 +<code matlab>
 + task{1}.collectEyeData = true;
 +</​code>​
 +
 +Next you initialize MGL's eye tracker support for your eye tracker.
 +<​code>​
 + ​myscreen = initEyeTracker(myscreen,​ '​Eyelink'​);​
 +</​code>​
 +
 +And finally you need to run a calibration.
 +<code matlab>
 + myscreen = calibrateEyeTracker(myscreen);​
 +</​code>​