THE ORIGINS OF INDIVIDUAL-DIFFERENCES IN MEMORY AMONG THE ELDERLY - A BEHAVIOR GENETIC-ANALYSIS
THE ORIGINS OF INDIVIDUAL-DIFFERENCES IN MEMORY AMONG THE ELDERLY - A BEHAVIOR GENETIC-ANALYSIS
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DOI：
10.1037/0882-7974.8.4.527
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发表时间：
1993-12-01
影响因子：
3.7
通讯作者：
MCGUE, M
中科院分区：
文献类型：
--
作者：
FINKEL, D;MCGUE, M
本研究的目的是应用行为遗传学的方法来研究记忆成绩的个体差异。记忆和各种认知和生活方式的变量，从93个同卵双胞胎对和67个异卵双胞胎对年龄60-88岁的明尼苏达州双胞胎研究的一部分，成人发展和衰老。单变量分析，用于确定遗传和环境因素对记忆的4个措施（单词回忆，即时和延迟的文本回忆，图形记忆）的相对影响，表明55%的记忆表现的方差可以归因于遗传因素。双变量分析用于确定介导遗传和环境对记忆影响的特定变量。结果表明，记忆和认知变量之间的关系是遗传的性质，而记忆和生活方式变量之间的关系的性质是环境。
The purpose of this investigation was to apply behavior genetic methods to investigate individual differences in memory performance. Memory and various cognitive and lifestyle variables were obtained from 93 monozygotic twin pairs and 67 dyzygotic twin pairs aged 60-88 years as part of the Minnesota Twin Study of Adult Development and Aging. Univariate analysis, used to determine the relative influence of genetic and environmental factors on 4 measures of memory (word recall, immediate and delayed text recall, and figure memory), suggested that 55% of the variance in memory performance could be attributed to genetic factors. Bivariate analysis was used to determine the specific variables that mediate the genetic and environmental influences on memory. Results suggested that the relationship between memory and cognitive variables was genetic in nature, whereas the nature of the relationship between memory and lifestyle variables was environmental.