Lubin1 Final Specs

•  INTRO: get subject initials, subject number .
• Randomize the list of al the m2v files in that directory (there are 20 of them). 
• Put up disks to collect calibration data just as in Henderson .
• Present Warm-up so subject gets an idea of the degree of distortions for the three originals
• For each trial: Start by having subject fixate in the center, as in Henderson. Then play the original m2v, followed by the distortion, the original m2v, and the distortion.  Record eye positions as in Henderson. Then go to blank screen and have subject rate the level of the distortion(1 - 10) compared to the original.
• At the end of playing the m2v files, put up the disks (or plus signs) again to collect final calibration data. 
• Thank subject and write data to disk as in Henderson (or perhaps you want to write it as you collect it). Subject 999 is a test run and no data is written to the disk.