The contribution of impaired working memory monitoring to performance of the self-ordered pointing task in normal aging and Parkinson's disease

被引:35
作者
West, R [1 ]
Ergis, AM
Winocur, G
Saint-Cyr, J
机构
[1] Baycrest Ctr, Rotman Res Inst, N York, ON M6A 2E1, Canada
[2] Univ Toronto, Dept Psychol, Toronto, ON M5S 1A1, Canada
[3] Inst Natl Sante & Rech Med, Unite 324, Paris, France
[4] Trent Univ, Dept Psychol, Peterborough, ON K9J 7B8, Canada
[5] Univ Toronto, Dept Psychiat, Toronto, ON, Canada
[6] Toronto Hosp, Dept Psychol, Toronto, ON M5T 2S8, Canada
[7] Toronto Hosp, Playfair Neurosci Unit, Toronto, ON M5T 2S8, Canada
[8] Hop Henri Mondor, Dept Neurosci, Creteil, France
[9] Trent Univ, Rotman Res Inst Baycrest Ctr, Peterborough, ON K9J 7B8, Canada
关键词
D O I
10.1037/0894-4105.12.4.546
中图分类号
B849 [应用心理学];
学科分类号
040203 ;
摘要
The factors contributing to the working memory deficit observed in older adults and individuals with Parkinson's disease on the Self-Ordered Pointing Task were examined in 2 experiments. A detailed analysis of the error data revealed that errors tended to be clustered toward the end of a trial and that this effect was somewhat independent of set size. This pattern was proposed to result from a monitoring deficit where individuals failed to maintain an integrated representation of how far they had proceeded in the trial, an interpretation consistent with animal work by M. Petrides (1995).
引用
收藏
页码:546 / 554
页数:9
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