▁observation . ▁Some ▁sections ▁require ▁multiple ▁gr ades ▁assigned ▁to ▁each ▁extrem ity . ▁ ▁C lin icians ▁and ▁research ers ▁al ike ▁use ▁the ▁UP DR S ▁and ▁the ▁motor ▁section ▁in ▁particular ▁to ▁follow ▁the ▁pro gression ▁of ▁a ▁person ' s ▁Park inson ' s ▁disease . ▁ ▁Scient ific ▁research ers ▁use ▁it ▁to ▁measure ▁benefits ▁from ▁a ▁given ▁ther apy ▁in ▁a ▁more ▁un ified ▁and ▁accepted ▁rating ▁system . ▁ ▁Ne uro log ists ▁also ▁use ▁it ▁in ▁clin ical ▁practice ▁to ▁follow ▁the ▁pro gression ▁of ▁their ▁patients ' ▁sympt oms ▁in ▁a ▁more ▁objective ▁manner . ▁ ▁Following ▁the ▁UP DR S ▁scores ▁over ▁time ▁provides ▁insight ▁into ▁the ▁patient ' s ▁disease ▁pro gression . ▁For ▁instance ▁Michael ▁J . ▁Fox ' s ▁sympt oms ▁started ▁with ▁a ▁slight ▁trem or , ▁so ▁his ▁motor ▁score ▁would ▁have ▁been ▁less ▁than ▁ 1 0 . ▁For ▁most ▁patients , ▁the ▁" ment ation , ▁behavior ▁and ▁m ood " ▁scores ▁increase ▁later ▁in ▁the ▁disease , ▁but ▁a ▁subset ▁exists ▁for ▁whom ▁those ▁sympt oms ▁develop ▁early ▁on . ▁ ▁Similar ▁rating ▁scales ▁Other ▁rating ▁scales ▁for ▁Park inson ' s ▁disease ▁are ▁the ▁H oe hn ▁and ▁Y ahr ▁scale ▁and ▁Schw ab ▁and ▁England ▁activities ▁of ▁daily ▁living ▁scale , ▁although ▁both ▁of ▁these ▁measures ▁are ▁currently ▁included ▁within ▁the ▁UP DR S ▁in ▁modified ▁format . ▁ ▁M DS - UP DR S ▁In ▁ 2 0 0 7 , ▁the