PS263 Chapter Notes - Chapter 8: Spinocerebellar Tract, Subthalamic Nucleus, Primary Motor Cortex
Document Summary
Charles sherrington: the ultimate goal of cognition is action: it was acting that allowed our ancestors to survive not cognating. Vision scientists like to boast that 30-40% of the primate brain is involved in visual processing. Motor scientists can boast that ~50% of the primate brain is involved in motor processes: mptp: In july 1982, 4 patients presented themselves in the emergency room of a san jose california hospital: no speech, no facial expression; extreme rigidity in their arms symptoms of advanced. Parkinson"s disease: they were only in their 20"s and 30"s (onset of parkinson"s disease is 45+ years) Their symptoms occurred within a couple of days not the decade or more in which. Parkinson"s symptoms can manifest themselves: turns out they were heroin users and sold a synthetic heroin called mptp, mptp = selectively toxic to dopaminergic cells, mptp has been used in animal models of parkinsonism.
