Abstract:
:Studies of Parkinson's disease (PD) have shown impaired temporal ordering but interpretation may be confounded by task requirements and the effects of medication. We examined item recognition and recency discrimination in PD in relation to treatment and performance on other tests. Patients showed increased response latency and impaired recency discrimination only at short retention intervals. The deficits were greater in chronically medicated patients but treatment with levodopa, bromocriptine or anticholinergic drugs did not affect performance of newly diagnosed cases. The short-term memory deficits correlated with scores on tests of working memory, attention and executive function. These results do not indicate a generalised temporal ordering deficit in PD but suggest that much of the cognitive impairment in the disorder arises from attentional deficits affecting short-term and working memory.
journal_name
Neuropsychologiajournal_title
Neuropsychologiaauthors
Cooper JA,Sagar HJ,Sullivan EVdoi
10.1016/0028-3932(93)90149-tsubject
Has Abstractpub_date
1993-09-01 00:00:00pages
933-49issue
9eissn
0028-3932issn
1873-3514pii
0028-3932(93)90149-Tjournal_volume
31pub_type
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