What are progressive and pseudo bulbar palsy?

Upper motor neuron: Pseudobulbar palsy is a disorder of nerves located near the base of the brain, that connect the higher brain centers with the lower spinal cord. Most commonly affects chewing, swallowing, speech, emotional outbursts sometimes. It has multiple causes and the underlying disease will determine how progressive it is; examples are parkinson's, als, certain strokes, ms, brain trauma.