General medicine

Gene–environment correlation (or rGE) is a term used in the field of genetic epidemiology to describe the phenomenon where an individual's genetic makeup influences their environment. This correlation is a key concept in understanding the complex interplay between genetics and environment in shaping an individual's traits and behaviors.

Types of Gene-Environment Correlation

There are three main types of gene-environment correlation: passive, evocative, and active.

Passive gene-environment correlation refers to the situation where the environment that parents provide for their children is influenced by the parents' genetic makeup. For example, parents who are genetically predisposed to be intelligent may create a stimulating environment that enhances their children's intellectual development.

Evocative gene-environment correlation (also known as reactive rGE) occurs when an individual's genetically influenced behavior evokes certain responses from others in their environment. For example, a child with a genetic predisposition for aggression may elicit more punitive responses from adults.

Active gene-environment correlation (also known as niche-picking rGE) refers to the process where individuals actively select environments that are compatible with their genetic predispositions. For example, a person with a genetic predisposition for athleticism may seek out opportunities to participate in sports.

Implications of Gene-Environment Correlation

Understanding gene-environment correlation is crucial in the field of behavioral genetics, as it helps to explain why individuals with certain genetic predispositions tend to find themselves in environments that reinforce those predispositions. This understanding can also inform interventions aimed at mitigating the effects of harmful genetic predispositions.

See Also

• Gene–environment interaction
• Behavioral genetics
• Genetic epidemiology