文章基本信息

标题：COGNITIVE FUNCTION IN NORMAL AGING AND IN OLDER ADULTS WITH MILD COGNITIVE IMPAIRMENT
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作者：Soledad Ballesteros ; Julia Mayas ; José Manuel Reales 等
期刊名称：Psicothema
印刷版ISSN：0214-9915
电子版ISSN：1886-144X
出版年度：2013
卷号：25
期号：1
页码：18-24
DOI：10.7334/psicothema2012.181
出版社：Cologio Oficial de Psicólogos del Principado
摘要：Background: In this study, we investigated the effects of normal and pathological (mild cognitive impairment, MCI) aging on several cognitive functions (processing speed, executive control and implicit memory). Method: Twenty young adults, 20 healthy older adults and 20 elders with MCI performed a series of cognitive tasks under controlled conditions. These tasks were simple and choice reaction time, the Wisconsin Card Sorting Test (WCST), and an implicit memory task for attended and unattended objects at encoding. Results: The MCI group showed pronounced declines in processing speed and executive control tasks. Interestingly, young and healthy older participants showed repetition priming for stimuli that were attended at encoding, but the MCI group did not. Conclusions: In this latter group, the lack of repetition priming for attended objects in the implicit memory task resembled that of Alzheimer disease (AD) patients and suggests an early deficit of selective attention that might be a marker of pathological aging.
关键词：Aging; executive function; mild cognitive impairment (MCI); repetition priming; selective attention; speed of processing.