Abstract:
:Both amnestic and nonamnestic deficits have been observed in patients with mild cognitive impairment (MCI). Most studies have focused on impairment on single cognitive tests rather than amalgamation of the results of several measures to arrive at a composite impairment index. In this investigation, we examined 20 MCI patients diagnosed as prodromal Alzheimer's disease, AD (mean Mini-Mental State Examination, MMSE = 26.1; SD = 1.7) and determined the extent to which they could be differentiated from 70 normal elderly controls based on composite measures at 1.5-SD and 2.0-SD cutoffs for impairment. At the 1.5-SD cutoff, the median number of memory indices impaired in the MCI-AD group was 5 of 7, whereas at the 2.0-SD cutoff, the median number was 4 of 7. A median of 3 of 7 and 2 of 7 nonmemory indices were impaired at 1.5- and 2.0-SD cutoffs for impairment. Receiver operator characteristics (ROC) analyses indicated that the total number of memory tests impaired at 2.0 SD (sensitivity = 95.0%/specificity = 84.3%) and the composite measure of both impaired memory and nonmemory measures (sensitivity of 85.0%/specificity of 100%) had high levels of discrimination and may have utility as indices of early impairment as well as severity of MCI.
journal_name
J Clin Exp Neuropsycholjournal_title
Journal of clinical and experimental neuropsychologyauthors
Loewenstein DA,Acevedo A,Agron J,Martinez G,Duara Rdoi
10.1080/13803390600681206subject
Has Abstractpub_date
2007-04-01 00:00:00pages
300-7issue
3eissn
1380-3395issn
1744-411Xpii
777241017journal_volume
29pub_type
杂志文章abstract::Neuropsychological (NP) impairment is multiply determined among HIV-infected and HIV-uninfected individuals who are also dually diagnosed with depression and who use illicit substances. The purpose of the present study was to assess the impact of HIV status, depression, and problematic substance use on NP performance....
journal_title:Journal of clinical and experimental neuropsychology
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abstract::Time disorientation is a common feature of anterograde memory disorder caused by brain illness. This observation suggests that the subjective time constructions used to organize events are strongly dependent upon memory storage processes. This study evaluated one prominent cognitive theory of time estimation from the ...
journal_title:Journal of clinical and experimental neuropsychology
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abstract::Declarative and procedural learning were assessed in patients with probable Alzheimer's Disease (AD) and major depression, patients with AD and no depression, patients with major depression but no dementia, and a group of age-comparable nondemented and nondepressed normal controls. AD patients showed significant defic...
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journal_title:Journal of clinical and experimental neuropsychology
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journal_title:Journal of clinical and experimental neuropsychology
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journal_title:Journal of clinical and experimental neuropsychology
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journal_title:Journal of clinical and experimental neuropsychology
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journal_title:Journal of clinical and experimental neuropsychology
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journal_title:Journal of clinical and experimental neuropsychology
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journal_title:Journal of clinical and experimental neuropsychology
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