Rhythmic movement disorders encompass repetitive, stereotyped gross-motor actions that occur at sleep onset or during sleep and may interfere with restorative rest or cause injury. Typically emerging ...

When a fruit fly gets dust on its body, it launches into a precise cleaning routine, sweeping and rubbing its legs in rhythmic strokes that look almost mechanical. Scientists have long assumed that ...

Tic disorders are conditions featuring sudden, non-rhythmic movements or vocalizations. A formal tic disorder diagnosis is determined by tic frequency, duration, and type. Tics are non-rhythmic ...