老年黑人和白人的认知衰老
Cognitive aging in older Black and White persons.
作者信息
Wilson Robert S, Capuano Ana W, Sytsma Joel, Bennett David A, Barnes Lisa L
机构信息
Department of Neurological Sciences, Rush Alzheimer's Disease Center, Rush University Medical Center.
Rush Alzheimer's Disease Center, Rush University Medical Center.
出版信息
Psychol Aging. 2015 Jun;30(2):279-85. doi: 10.1037/pag0000024. Epub 2015 May 11.
Abstract
During a mean of 5.2 years of annual follow-up, older Black (n = 647) and White (n = 647) persons of equivalent age and education completed a battery of 17 cognitive tests from which composite measures of 5 abilities were derived. Baseline level of each ability was lower in the Black subgroup. Decline in episodic and working memory was not related to race. Decline in semantic memory, perceptual speed, and visuospatial ability was slower in Black persons than White persons, and in semantic memory and perceptual speed this effect was stronger in older than younger participants. Racial differences persisted after adjustment for retest effects. The results suggest subtle cognitive aging differences between Black persons and White persons.
摘要
在平均5.2年的年度随访期间，年龄和教育程度相当的老年黑人（n = 647）和白人（n = 647）完成了一系列17项认知测试，从中得出了5种能力的综合指标。黑人亚组中每种能力的基线水平较低。情景记忆和工作记忆的衰退与种族无关。黑人的语义记忆、知觉速度和视觉空间能力的衰退比白人慢，在语义记忆和知觉速度方面，这种影响在老年参与者中比年轻参与者更强。在调整重测效应后，种族差异依然存在。结果表明黑人和白人之间存在细微的认知衰老差异。
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