[Cognitive function in XXXX with parkinsonism--in relationship with @entity75 ].

@entity1 @entity303 @entity75 @entity191 @entity194 @entity30154
Whether the basal ganglia have a cognitive function or not is a worldwide dispute. We have examined 13 @entity191 @entity1 and 12 age-matched non- @entity191 controls using the Modified Wisconsin Card Sorting Test (MCST). All 12 controls could achieve all 6 sets of categories which were successively changed. On the other hand, in the @entity191 , 9 @entity1 could achieve all 6 sets, but 4 @entity1 could do only 4 to 0 sets. The difference between the two groups was statistically significant. These 4 @entity1 who showed poor achievement on MCST had tendency showing higher percentage of perseverative errors. Taking the proportion of perseverative error (PE) to total error (TE) revealed that the @entity191 group had a peak ranged from 55% to 65% which meant higher occurrence of perseverative errors. When the 4 @entity191 whose proportion of PE/TE on MCST was over 55% were excluded, a comparison of the @entity191 with the controls showed no significant difference statistically in both groups. There were no clinical differences based upon Yahr's classification between the 4 @entity191 with poor MCST score and those with the normal score. Among these @entity191 whose proportion of PE/TE ranged from 55% to 65%, 3 cases showed @entity75 and 3 mild @entity303 on Wechsler Intelligence Scale for Adults. Two @entity1 with @entity30154 and showing a marked @entity194 of the caudate nucleus were also examined. They showed excellent results on MCST.(ABSTRACT TRUNCATED AT 250 WORDS)
