Inter- and intraindividual variability in recognition memory: effects of aging and estrogen use.
Inter- and intraindividual variability in recognition memory: effects of aging and estrogen use.
复制标题
识别记忆的个体间和个体内变异性：衰老和雌激素使用的影响。
DOI：
10.1037/0894-4105.18.4.646
复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
Stern,Yaakov
中科院分区：
文献类型：
--
作者：
Wegesin,DomonickJ;Stern,Yaakov
Traditionally, studies of cognitive aging have focused on comparing the average performance of younger and older adults, whereas variability around the mean has been attributed to task-irrelevant noise. The present study examined the hypothesis that variability in memory performance increases with age and that estrogen helps temper age-related increases in variability. Postmenopausal estrogen users, estrogen and progestin (est+ prog) users, and nonusers, as well as younger women, completed 16 blocks of an item-source memory task. Older women showed greater variability than younger women on measures of dispersion and consistency. Estrogen users, but not est+ prog users, performed more consistently than nonusers. Overall, age-related increases in variability differed with the type of variability measured, and estrogen use, but not est+ prog use, appeared to reduce age-related increases in at least 1 form of variability.
