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Rhythmic movement disorder (RMD) is a neurological disorder characterized by repetitive movements of large muscle groups immediately before and during sleep often involving the head and neck. It was independently described first in 1905 by Zappert as jactatio capitis nocturna and by Cruchet as rhythmie du sommeil . [ 1 ]
The tic-like movements and swelling of the third ventricle associated with bobble-head doll syndrome are similar to that of other movement disorders caused by diseases of the corpus callosum and aforementioned basal ganglia. Because of the swelling, added pressure is applied to these formations causing their basic functions to be disturbed.
Myoclonus is a brief, involuntary, irregular (lacking rhythm) twitching of a muscle, a joint, or a group of muscles, different from clonus, which is rhythmic or regular. Myoclonus ( myo- "muscle", clonus "spasm") describes a medical sign and, generally, is not a diagnosis of a disease .
Palatal myoclonus is a rare condition in which there are rhythmic jerky movements or a rapid spasm of the palatal (roof of the mouth) muscles. Chronic clonus is often due to lesions of the central tegmental tract (which connects the red nucleus to the ipsilateral inferior olivary nucleus). [citation needed]
Rett syndrome (RTT) is a genetic disorder that typically becomes apparent after 6-18 months of age and almost exclusively in girls. [4] Symptoms include impairments in language and coordination, and repetitive movements. [4]
A 10-month-old St. Johns girl is fighting a movement disorder so rare her doctors believe she may be the only one who has it, her moms said.
An Oregon baby underwent surgery to remove half of his brain due to a rare disorder and seizures. Jackson Williamson was just 3 months old when he started suffering seizures.
Choreoathetosis is the occurrence of involuntary movements in a combination of chorea (irregular migrating contractions) and athetosis (twisting and writhing).. It is caused by many different diseases and agents.