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Fig. 8. Experimental values of Yforward and
Xlateral at low, intermediate and high current speed in
semi-transparent (A, B, C, respectively) and darkened (D, E, F, respectively).
Blue, red and green lines represent values corresponding to a constant loom,
angular velocity and angular size, respectively (i.e. the average loom,
angular velocity and angular size for each given speed, respectively).