Fig 5. Representation of the time spent on two and four paws in control rats and after 1 and 10 days after UVN.

Left: control rats. Middle: 1 day after UVN. This situation corresponds to the acute stage of the vestibular syndrome. Right: 10 days after UVN. This situation corresponds to the compensated stage of the vestibular syndrome. Pictures below illustrate the righting position that characterizes the exploration behaviour (right and left) and the body position characteristic of the acute vestibular syndrome (Middle). At this stage, the rat favours a support surface on the intact side probably due to the increase of the muscular tonus of the paws on the intact side and the simultaneous loss of tonicity on the injured side.