Table 2.
Qualitative relationships between eye activity variables and selected cognitive states.
| Variable | Mental Workload | Attention | Fatigue |
|---|---|---|---|
| Fixation | ↑ | ↑ | ↑ |
| Blink rate | ↑ | ↓ | ↑ |
| Saccades | ↓ | ↓ | - |
| Pupil diameter | ↑ | ↑ | ↓ |
| Visual entropy | ↓ | ↑ | - |
| Dwell time | ↓ | ↑ | - |
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