MdDS is a central vestibular (neurological) disorder. It is not a peripheral vestibular (inner ear) disorder or disease. In the peer-reviewed research article, Metabolic and Functional Connectivity Changes in Mal de Debarquement Syndrome, author Yoon-Hee Cha, MD, et al discuss the areas of the brain associated with persistent MdDS.
MdDS is the acronym for Mal de Débarquement Syndrome (Fr.), which translates to sickness upon disembarking (leaving a boat or other vehicle).
This disorder is also known as Disembarkment Syndrome, disembarkation syndrome, debarquement syndrome or colloquially as landsickness. It is less commonly known as Persistent Mal de Debarquement (PMdD), Rocking Dizziness or Rocking Vertigo.