Hagbarth, K E Muscle spindle activity in alternating tremor of Parkinsonism and in clonus. [electronic resource] - Journal of neurology, neurosurgery, and psychiatry Jul 1975 - 636-41 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0022-3050 Standard No.: 10.1136/jnnp.38.7.636 doi Subjects--Topical Terms: AdultAgedElectromyographyHumansMechanoreceptors--physiologyMiddle AgedMotor Activity--physiologyMotor Neurons, Gamma--physiologyMuscle ContractionMuscle Spindles--physiopathologyMyoclonus--physiopathologyParkinson Disease--physiopathologyTremor--physiopathology