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| No Rotation | Rotation | |
| Progression on Straight path | Fixed-front-on-Straight-path (‘A’) | Rotation-on-Straight-Path (‘B’) |
| Progression on Curved path | Fixated-Front-on-Curved-Path (‘C’) | Rotation-on-Curved-Path (‘D’) |
| No progression | Lingering (‘L’) | Rotation-in-place (‘R’) |
The modes reflect the dynamics of the angular interval between the animal's direction of progression and the direction it faces.
