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KMID : 1036820170220030550
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Communication Sciences & Disorders
2017 Volume.22 No. 3 p.550 ~ p.560
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Relationship to Ratio of Correct Information Unit and Cognitive Functions in Patients with Amnestic MCI and EAD
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Choi Hyun-Joo
Lee Jun-Young
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Abstract
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Objectives: Impairment of discourse production ability and cognitive function are known to appear during the stages of amnestic mild cognitive impairment (aMCI) and early stages of Alzheimer's disease (EAD). The purpose of the present study was to investigate the relationship between the ratio of Correct Information Unit (CIU) and cognitive functions in patients with aMCI and EAD.
Methods: Thirty patients with aMCI and thirty patients with EAD participated in this study. They took part in attention (Digit Span Test), confrontational naming, memory, and executive function tasks (Color Word Stroop Test [CWST], Trail Making Test [TMT], Controlled Oral Word Association Test [COWAT]). Discourse samples were collected from simple and complex picture description tasks.
Results: The results were as follows. First, the ratio of CIU had no significant correlation to age, educational level or Korean-Mini Mental State Examination score in the two groups. Second, there was no significant difference by group in the Digit Span Test, but performances ratios of CIU, confrontational naming, memory and executive function tasks in aMCI were significant higher than those in EAD. Third, the ratio of CIU in aMCI had significant correlations to performances of backward digit span, confrontational naming, delayed recall, color reading (reaction time per item) on the Stroop test, and COWAT. Fourth, the ratio of CIU in EAD had significant correlations to performances of backward digit span, confrontational naming, memory, color reading on the Stroop test, and COWAT.
Conclusion: These results suggest that the relationship between CIU and cognitive functions was different in aMCI and EAD.
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KEYWORD
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Picture description, Correct Information Unit, Cognitive function, Amnestic mild cognitive impairment, Alzheimer's disease
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