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Group means and standard deviation of COM displacements in the four types of perturbation. Group means and standard deviation of onset latency (left) and magnitude (right) of horizontal (top) and vertical (bottom) COM displacements for the four types of perturbation. A significant difference between translation and rotation is indicated by *, a significant difference between forward/toe up and backward/toe down is indicated by†, and a significant interaction is indicated by‡.
