Dysfunction of the spinocerebellum  (vermis and associated areas near the midline) presents itself with a wide-based "drunken sailor" gait (called truncal ataxia), characterised by uncertain starts and stops, lateral deviations, and unequal steps.
A dysfunction in the spinocerebellum (specifically the vermis and its associated regions near the midline) leads to a distinctive gait called truncal ataxia. This type of ataxia is marked by unsteadiness, with uncertain beginnings and endings, lateral shifts, and unequal step lengths.