Describe clinical manifestation of the Mal de debarquement syndrome.
['Mal de debarquement (MdD) is a subjective perception of self-motion after exposure to passive motion, in most cases sea travel, hence the name. Mal de debarquement occurs quite frequently in otherwise healthy individuals for a short period of time (several hours). However, in some people symptoms remain for a longer period of time or even persist and this is then called mal de debarquement syndrome (MdDS).', 'OBJECTIVE: Mal de debarquement syndrome (MdDS) is a balance disorder that typically starts after an extended exposure to passive motion, such as a boat or plane ride. ', 'Mal de debarquement syndrome (MdDS) is a rare and poorly understood condition of perceived continual motion.', 'BACKGROUND: Mal de debarquement syndrome (MdDS) is a disorder of chronic self-motion perception that occurs though entrainment to rhythmic background motion, such as from sea voyage, and involves the perception of low-frequency rocking that can last for months or years. ', 'It is characterized by abnormal sensation of motion/balance reported after travel by air, land, and sea; being reexposed to motion/activity relieves it. Symptoms may last from minutes to years. ', 'Persistent mal de debarquement syndrome: a motion-induced subjective disorder of balance.', 'Mal de debarquement syndrome (MdDS) is a disorder of phantom perception of self-motion of unknown cause. ', 'Mal de debarquement (MDD) is a common, benign, and self-limited syndrome suffered by many people after disembarkation from an oceangoing vessel.', 'Persistent mal de debarquement syndrome: a motion-induced subjective disorder of balance.']
['Mal de debarquement syndrome (MdDS) is a disorder of chronic self-motion perception that occurs though entrainment to rhythmic background motion, such as from sea voyage, and involves the perception of low-frequency rocking that can last for months or years.']
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