scholarly journals Erratum to: Genetic Influences on Four Measures of Executive Functions and Their Covariation with General Cognitive Ability: The Older Australian Twins Study

2012 ◽  
Vol 42 (4) ◽  
pp. 539-540
Author(s):  
Teresa Lee ◽  
◽  
Miriam A. Mosing ◽  
Julie D. Henry ◽  
Julian N. Trollor ◽  
...  
Keyword(s):  
Executive Functions ◽  
Cognitive Ability ◽  
Genetic Influences ◽  
General Cognitive Ability

scholarly journals Genetic Influences on Four Measures of Executive Functions and Their Covariation with General Cognitive Ability: The Older Australian Twins Study

2012 ◽  
Vol 42 (4) ◽  
pp. 528-538 ◽  
Author(s):  
Teresa Lee ◽  
◽  
Miriam A. Mosing ◽  
Julie D. Henry ◽  
Julian N. Trollor ◽  
...  
Keyword(s):  
Executive Functions ◽  
Cognitive Ability ◽  
Genetic Influences ◽  
General Cognitive Ability

Genetic Influences on Five Measures of Processing Speed and Their Covariation with General Cognitive Ability in the Elderly: The Older Australian Twins Study

2011 ◽  
Vol 42 (1) ◽  
pp. 96-106 ◽  
Author(s):  
Teresa Lee ◽  
Miriam A. Mosing ◽  
Julie D. Henry ◽  
Julian N. Trollor ◽  
Andrea Lammel ◽  
...  
Keyword(s):  
Cognitive Ability ◽  
Processing Speed ◽  
The Elderly ◽  
Genetic Influences ◽  
General Cognitive Ability

scholarly journals Genes Determine Stability and the Environment Determines Change in Cognitive Ability During 35 Years of Adulthood

2009 ◽  
Vol 20 (9) ◽  
pp. 1146-1152 ◽  
Author(s):  
Michael J. Lyons ◽  
Timothy P. York ◽  
Carol E. Franz ◽  
Michael D. Grant ◽  
Lindon J. Eaves ◽  
...  
Keyword(s):  
Cognitive Ability ◽  
Young Adulthood ◽  
Genetic Factors ◽  
Middle Age ◽  
Early Adulthood ◽  
Armed Forces ◽  
Genetic Influences ◽  
General Cognitive Ability ◽  
Longitudinal Assessment ◽  
Factors Influencing

Previous research has demonstrated stability of cognitive ability and marked heritability during adulthood, but questions remain about the extent to which genetic factors account for this stability. We conducted a 35-year longitudinal assessment of general cognitive ability using the Armed Forces Qualification Test administered to 7,232 male twins in early adulthood and readministered to a subset of 1,237 twins during late middle age. The proportion of variance in cognitive functioning explained by genetic factors was .49 in young adulthood and .57 in late middle age. The correlation between the two administrations was .74 with a genetic correlation of 1.0, indicating that the same genetic influences operated at both times. Genetic factors were primarily responsible for stability, and nonshared environmental factors were primarily responsible for change. The genetic factors influencing cognition may change across other eras, but the same genetic influences are operating from early adulthood to late middle age.

Sex Differences in Childhood Associations between DNA Markers and General Cognitive Ability

2007 ◽  
Vol 28 (3) ◽  
pp. 161-164 ◽  
Author(s):  
Rosalind Arden ◽  
Nicole Harlaar ◽  
Robert Plomin
Keyword(s):  
Sex Differences ◽  
Single Nucleotide Polymorphisms ◽  
Cognitive Ability ◽  
Dna Markers ◽  
Community Sample ◽  
Nucleotide Polymorphisms ◽  
General Cognitive Ability ◽  
Single Nucleotide ◽  
The Difference

Abstract. An association between intelligence at age 7 and a set of five single-nucleotide polymorphisms (SNPs) has been identified and replicated. We used this composite SNP set to investigate whether the associations differ between boys and girls for general cognitive ability at ages 2, 3, 4, 7, 9, and 10 years. In a longitudinal community sample of British twins aged 2-10 (n > 4,000 individuals), we found that the SNP set is more strongly associated with intelligence in males than in females at ages 7, 9, and 10 and the difference is significant at 10. If this finding replicates in other studies, these results will constitute the first evidence of the same autosomal genes acting differently on intelligence in the two sexes.

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