File:Fig AntennalCoordination.jpg

Summary

During walking, antennal movements of the stick insect Carausius morosus are often co-ordinated with the stepping movements of the legs. Left: Temporal coordination of antennal adduction/protraction phases (red line segments) and stance/retraction phases of the legs (blue line segments). Light gray arrows indicate a back-to-front wave that describes the coordination pattern of left limbs (top) and right limbs (bottom). Right: Spatial trajectories of antennal tips (red) and front leg tarsi (blue) during a walking sequence of four steps. Side view (top) and top view (bottom) of left (broken lines) and right (solid lines) limbs. Bold gray lines connect coincident points. Note how these lines always curve in the same direction. Therefore, antennal tips tend to lead the tarsus movement [modified from Dürr et al., 2001, J. Comp. Physiol. by Volker Dürr, Biological Cybernetics, Bielefeld University, Germany]

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