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Comparison table of eye trackers’ characteristics.
| Characteristics | Custom-built eye tracker | EyeLink 1000 Plus |
| Spatial precision (artificial eyes) | 0.0191 | 0.0219 |
| Spatial precision (participants) | 0.0462 | 0.0236 |
| Spatial accuracy | 0.4304 | 0.7848 |
| Sampling rate | 395 Hz | 1 kHz (binocular), 2 kHz (monocular) |
| Real-time automated noise analysis | yes | no |
| Real-time pupil artifact correction | yes | no |
| Gaze-contingent experiments | yes | no |
