"Pure akinesia" and the later added supranuclear ophthalmoplegia.
D004584:Electronystagmography; D005072:Evoked Potentials, Auditory; D006801:Humans; D009759:Nystagmus, Pathologic / Q000175:diagnosis; D009886:Ophthalmoplegia / Q000175:diagnosis*; D010300:Parkinson Disease / Q000175:diagnosis*; D013494:Supranuclear Palsy, Progressive / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed