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Neurology. Extrapyramidal symptoms (EPS) are symptoms that are archetypically associated with the extrapyramidal system of the brain's cerebral cortex. When such symptoms are caused by medications or other drugs, they are also known as extrapyramidal side effects (EPSE). The symptoms can be acute (short-term) or chronic (long-term).
The extrapyramidal tracts are chiefly found in the reticular formation of the pons and medulla, and target lower motor neurons in the spinal cord that are involved in reflexes, locomotion, complex movements, and postural control. These tracts are in turn modulated by various parts of the central nervous system, including the nigrostriatal ...
2.5–15% (US)[4] Restless legs syndrome, (also known as restless leg syndrome (RLS)and Willis–Ekbom disease(WED), is a neurological disorder, usually chronic, that causes an overwhelming urge to move one's legs. [2][10]There is often an unpleasant feeling in the legs that improves temporarily by moving them.[2]
Movement disorders are clinical syndromes with either an excess of movement or a paucity of voluntary and involuntary movements, unrelated to weakness or spasticity. [ 1 ] Movement disorders present with extrapyramidal symptoms and are caused by basal ganglia disease. [ 2 ] Movement disorders are conventionally divided into two major categories ...
The pyramidal tracts include both the corticobulbar tract and the corticospinal tract. These are aggregations of efferent nerve fibers from the upper motor neurons that travel from the cerebral cortex and terminate either in the brainstem (corticobulbar) or spinal cord (corticospinal) and are involved in the control of motor functions of the body.
The vestibulospinal tract is part of the "extrapyramidal system" of the central nervous system. In human anatomy, the extrapyramidal system is a neural network located in the brain that is part of the motor system involved in the coordination of movement. [2] The system is called "extrapyramidal" to distinguish it from the tracts of the motor ...
Tardive dyskinesia (TD) is an iatrogenic disorder that results in involuntary repetitive body movements, which may include grimacing, sticking out the tongue or smacking the lips, [1] which occurs following treatment with medication. [6][7] Additional motor symptoms include chorea or athetosis. [1] In about 20% of people with TD, the disorder ...
Hemiballismus or hemiballism is a basal ganglia syndrome resulting from damage to the subthalamic nucleus in the basal ganglia. [1] It is a rare hyperkinetic movement disorder, [2] that is characterized by pronounced involuntary limb movements [1][3] on one side of the body [4] and can cause significant disability. [5]