Endophenotypes for intelligence in children and adolescents

被引：26

作者：

van Leeuwen, Marieke ^{[1
]}

van den Berg, Stephanie M. ^{[1
]}

Hoekstra, Rosa A. ^{[1
]}

Boomsma, Dorret I. ^{[1
]}

机构：

[1] Vrije Univ Amsterdam, Dept Biol Psychol, NL-1081 BT Amsterdam, Netherlands

来源：

INTELLIGENCE | 2007年 / 35卷 / 04期

关键词：

processing speed; selective attention; test reliability; working memory; development;

D O I：

10.1016/j.intell.2006.09.008

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

The aim of this study was to identify promising endophenotypes for intelligence in children and adolescents for future genetic studies in cognitive development. Based on the available set of endophenotypes for intelligence in adults, cognitive tasks were chosen covering the domains of working memory, processing speed, and selective attention. This set of tasks was assessed in a test-retest design in children and in adolescents. Working memory could be measured reliably using the n-back task and correlated with intelligence in both age groups. For processing speed, assessed with the FI-inspection time task and reaction time on the flanker task, test-retest reliability was good in both age groups, but processing speed only correlated significantly with intelligence in children. Selective attention, i.e., the effect of incongruent flankers on RT and accuracy, showed low reliability and neither correlated with intelligence in adolescents nor in children. Thus, working memory seems a promising endophenotype for intelligence in both children and adolescents. Inspection time and measures of selective attention based on the flanker task do not seem very promising endophenotypes for intelligence in these age groups. (C) 2006 Elsevier Inc. All rights reserved.

引用

页码：369 / 380

页数：12

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