A twin study of mathematics disability
A twin study of mathematics disability
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DOI：
10.1177/002221949703000605
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发表时间：
1997-11-01
影响因子：
3
通讯作者：
Pennington, BF
中科院分区：
文献类型：
--
作者：
Alarcon, M;DeFries, JC;Pennington, BF
虽然最近双胞胎和领养研究的结果表明，个体在数学成绩上的差异部分是由于遗传影响，但以前还没有关于数学残疾(MD)的遗传分析的报道。在这篇文章中，我们提供了第一个双胞胎样本的数据(40对同卵双胞胎和23对同性异卵双胞胎，其中至少有一名成员患有MD)。当对这些双胞胎的数学成绩数据进行多元回归分析时，获得了显著遗传病因的证据。然而，对MD的不同病因学作为阅读水平的函数的测试并不显著。第一次双胞胎MD研究的结果表明，这种情况是显著可遗传的，但需要来自其他双胞胎的数据来更严格地检验差异病因学的假说。
Although results obtained from recent twin and adoption studies suggest that individual differences in mathematics performance are due in part to heritable influences, no genetic analysis of mathematics disability (MD) has been previously reported. In this article we present data from the first twin sample ascertained for mathematics deficits (40 identical and 23 same-sex fraternal twin pairs in which at least one member had MD). When mathematics performance data from these twin pairs were subjected to a multiple regression analysis, evidence for a significant genetic etiology was obtained. However, tests for the differential etiology of MD as a function of reading performance level were nonsignificant. Results of this first twin study of MD indicate that the condition is significantly heritable, but data from additional twin pairs will be required to test hypotheses of differential etiology more rigorously.