The genetic component of high intelligence seems to be in control of the overall level of intelligence. As with all heritable traits, it is not always possible to isolate exactly how and when high intelligence is passed on to the next generation.

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Although genetics seem to be in control of the level of intelligence, environmental influences provide both stability and change to trigger the manifestation of cognitive abilities.

Interaction of Genetics and Environment in Intelligence

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

Genetic Control of Intelligence Level

Environmental influences provide both stability and change to trigger the manifestation of cognitive abilities. Certain environmental behaviors and factors actively support the development of intelligence.

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