Magnetic resonance images (sagittal view) of patients with downward displacement of the cerebellar tonsils and flattening of the pons, which are characteristic features of [[cerebrospinal fluid hypovolemia]], called "[[brain sagging]]." The results suggest that brain sagging due to CSF hypovolemia impairs vestibular and vestibulocerebellar functions, which may cause [[dizziness]] and [[vertigo]]
((Yokota J, Shimoda S. [Neuro-otological Studies of Patients Suffering from
Dizziness with Cerebrospinal Fluid Hypovolemia after Traffic Accident-associated 
Whiplash Injuries]. Brain Nerve. 2015 May;67(5):627-34. doi:
10.11477/mf.1416200191. Japanese. PubMed PMID: 25957209.)).