Page "Ataxia" Paragraph 4

* Dysfunction of the vestibulocerebellum ( flocculonodular lobe ) impairs the balance and the control of eye movements.

This presents itself with postural instability, in which the person tends to separate his / her feet upon standing, in order to gain a wider base and to avoid titubation ( bodily oscillations tending to be forward-backward ones ).

The instability is therefore worsened when standing with the feet together, regardless of whether the eyes are open or closed.

This is a negative Romberg's test, or more accurately, it denotes the individual's inability to carry out the test, because the individual feels unstable even with open eyes.