<prompt> All are examples of upper motor neuron lesion except:Prion diseaseMultiple sclerosisAnterior horn cell diseaseTuberous sclerosis  <response>: Anterior Horn cell disease because in this lesion at spinal cord it comes under lower motor neuron lesion Ant. Horn cell disease motor neuro disease leads to flaccid paraplegia Prion disease dementia myoclonus Multiple sclerosis optic neuritis Tuberous sclerosis epilepsy 