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1. www.nature.com › articles › s41380/021/01027-yGenetic variation, brain, and intelligence differences - Nature

   www.nature.com › articles › s41380/021/01027-y

   Feb 2, 2021 · Non-additive genetic variation, including dominance and epistasis, has been postulated as a partial explanation for the gap in heritability estimates derived using twin and family methods...

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2. pmc.ncbi.nlm.nih.gov › articles › PMC4270739Genetics and intelligence differences: five special findings

   pmc.ncbi.nlm.nih.gov › articles › PMC4270739

   One critical piece of evidence is that siblings of persons with severe intellectual disability have an average intelligence quotient (IQ) near 100 whereas siblings of persons with mild intellectual disability have an average IQ of about 85, about one standard deviation below the population mean.

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4. pmc.ncbi.nlm.nih.gov › articles › PMC5479093Effect of environmental factors on intelligence quotient of ...

   pmc.ncbi.nlm.nih.gov › articles › PMC5479093

   Studies on the influence of gene–environment interaction on intelligence have shown that genetic and shared environmental components change in opposite directions as a function of socioeconomic status (SES), i.e., the heritability of IQ is very low for lower SES individuals and vice versa.

5. www.scientificamerican.com › article › isIs Intelligence Hereditary? | Scientific American

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   May 1, 2016 · Another particularly interesting recent finding is that the genetic influence on measured intelligence appears to increase over time, from about 20 percent in infancy to 40 percent in childhood to...

6. www.predictiveindex.com › blog › the-dominance-driveDominant Personalities at Work: High vs Low Dominance Traits ...

   www.predictiveindex.com › blog › the-dominance-drive

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   Aug 11, 2017 · It’s critical to identify the amount of dominance required in a given job function. Here's how to mix and match these dominant personality types at work.

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7. medlineplus.gov › genetics › understandingIs intelligence determined by genetics? - MedlinePlus

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   Many studies rely on a measure of intelligence called the intelligence quotient (IQ). Researchers have conducted many studies to look for genes that influence intelligence. Since it is difficult to separate the genetic and environmental influences of a trait like intelligence, these studies can be complicated.

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   What is intelligence quotient?

   • Most definitions of intelligence include the ability to learn from experiences and adapt to changing environments. Elements of intelligence include the ability to reason, plan, solve problems, think abstractly, and understand complex ideas. Many studies rely on a measure of intelligence called the intelligence quotient (IQ).

   Is intelligence determined by genetics? - MedlinePlus

   medlineplus.gov/genetics/understanding/traits/intelligence/

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   Does Dominance genetic variation contribute to the missing heritability of complex traits?

   • Zhu Z, Bakshi A, Vinkhuyzen AAE, Hemani G, Lee SH, Nolte IM, et al. Dominance genetic variation contributes little to the missing heritability for human complex traits. Am J Hum Genet. 2015;96:377–85. Mäki-Tanila A, Hill WG. Influence of gene interaction on complex trait variation with multilocus models. Genetics. 2014;198:355–67.

   Genetic variation, brain, and intelligence differences

   www.nature.com/articles/s41380-021-01027-y

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   What makes a good dominance report?

   • Low dominance reports need a working environment that is harmonious and relatively stable. If you’re a high dominance manager, be careful not to think that just because you’re excited about a new initiative that everybody on your team automatically will be, too. You run the risk of overpowering your people, and every leader needs followers.

   Dominant Personalities at Work: High vs Low Dominance Traits

   www.predictiveindex.com/blog/the-dominance-drive-deconstructed/

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   What would happen if we were made up of only high dominance people?

   • One comprised of exclusively high dominance people would likely incapacitate itself through instability and inattention to the necessary “glue” required in most endeavors. One made up of exclusively low dominance people would lack the competitive drive to innovate, take chances, and bring about a better tomorrow. We’re better together.

   Dominant Personalities at Work: High vs Low Dominance Traits

   www.predictiveindex.com/blog/the-dominance-drive-deconstructed/

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   Does water molecular diffusion affect intelligence test scores?

   • When assessed as summary measures across multiple parts of white matter, more directionally coherent water molecular diffusion (higher FA) and lower overall magnitude of diffusion (lower MD) are associated with higher intelligence test scores in studies together covering ages 8–81 years [73, 92, 93], typically with small effect sizes.

   Genetic variation, brain, and intelligence differences

   www.nature.com/articles/s41380-021-01027-y

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   What causes variance in IQ?

   • The proximate causes of variance in IQ are the ‘cognitively stimulating experiences’ that the individual is provided with and seeks for him/herself. Early in life, those experiences are primarily imposed (or not imposed) on the individual and that shows up as shared environmental influence.

   The Wilson Effect: The Increase in Heritability of IQ With Age

   www.cambridge.org/core/journals/twin-research-and-human-genetics/article/wilson-effect-the-increase-in-heritability-of-iq-with-age/FF406CC4CF286D78AF72C9E7EF9B5E3F

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9. www.cambridge.org › core › journalsThe Wilson Effect: The Increase in Heritability of IQ With Age

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   Aug 7, 2013 · The plot illustrates the changes in kin correlations that mediate the effect; relatively stable monozygotic twin (MZ) correlations from 2 years of age and decreasing same-sex dizygotic twin (DZ) correlations after 4 years of age.