Cerebral generators involved in the pathogenesis of the restless legs syndrome.

Abstract in brief

• This study used high-resolution MRI to identify brain areas involved in restless legs syndrome (RLS), focusing on sensory discomfort and limb movements, revealing that the cerebellum and thalamus are activated during sensory leg discomfort.
• When patients experience both limb movements and sensory discomfort, additional activation is seen in the red nuclei and brainstem near the reticular formation, suggesting these areas contribute to movement generation in RLS.
• Imitation of limb movements by patients and controls activates motor-related brain areas but does not involve the brainstem, indicating different neural pathways are responsible for voluntary movement versus involuntary RLS movements.]