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Figure 5


Fig. 5. Polarotactic behavior of an especially sensitive cricket under uniform stimuli of different degrees of polarization (d). (A–C) Rotational movements with d=100%, 3% and 0%, respectively (see polarization ellipses in the diagrams). Abscissa: walking direction (rotational component of the run) given by the number of dots on the ball that passed the detector; positive and negative values indicate right and left turns, respectively. Ordinate: stimulus orientation. Note that the periodic modulation of walking direction is almost as strong for 3% as for 100% polarization.





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