User manual

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© 2005-2008 SR Research Ltd.
3.2.6 Desktop Mount (Angled) Participant Setup, Binocular ................................. 62
3.3 Setting Pupil Threshold ...................................................................... 65
3.4 Setting Corneal Reflection (CR) ........................................................... 67
3.5 Search Limits ..................................................................................... 68
3.6 Pupil Tracking Algorithm .................................................................... 69
3.7 Calibration ......................................................................................... 69
3.8 Validation........................................................................................... 73
3.9 Improving Calibration Quality............................................................. 74
3.10 Recording Gaze Position ................................................................... 75
3.11 Drift Correction / Drift Checking ...................................................... 76
3.12 Exiting EyeLink 1000 ....................................................................... 77
3.13 EyeLink 1000 Setup Summary ......................................................... 78
3.14 Experiment Practice ......................................................................... 79
3.15 Next Steps: Other Sample Experiments............................................. 79
4. Data Files ................................................................................................................ 82
4.1 File Contents...................................................................................... 82
4.2 Recording EDF Files ........................................................................... 83
4.2.1 Recording from the EyeLink 1000 Host PC.................................................. 83
4.2.2 Recording from the EyeLink API or SR Research Experiment Builder......... 83
4.3 The EyeLink On-Line Parser ............................................................... 83
4.3.1 Parser Operation .......................................................................................... 84
4.3.2 Parser Limitations......................................................................................... 84
4.3.3 EyeLink Parser Configuration....................................................................... 85
4.3.4 Parser Data Type ......................................................................................... 85
4.3.5 Saccadic Thresholds .................................................................................... 85
4.3.6 Pursuit Thresholds........................................................................................ 86
4.3.7 Fixation Updates........................................................................................... 87
4.3.8 Other Parameters ......................................................................................... 87
4.3.9 Sample Configurations ................................................................................. 88
4.3.10 Reparsing EyeLink Data Files .................................................................... 88
4.4 File Data Types................................................................................... 89
4.4.1 Samples........................................................................................................ 89
4.4.2 Position Data ................................................................................................ 90
4.4.3 Pupil Size Data ............................................................................................. 92