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Decades of research have demonstrated that both genetic and environmental factors play a role in a variety of behaviors in humans and animals (e.g. Grigorenko & Sternberg, 2003). The genetic basis of aggression, however, remains poorly understood. Aggression is a multi-dimensional concept, but it can be generally defined as behavior that ...
The start of behaviour genetics as a well-identified field was marked by the publication in 1960 of the book Behavior Genetics by John L. Fuller and William Robert (Bob) Thompson. [ 1 ] [ 10 ] It is widely accepted now that many if not most behaviours in animals and humans are under significant genetic influence, although the extent of genetic ...
Human behavior is the potential and expressed capacity (mentally, physically, and socially) of human individuals or groups to respond to internal and external stimuli throughout their life. Behavior is driven by genetic and environmental factors that affect an individual.
Maltreatment and parenting play a role in the development of antisocial behavior, and studies have been shown to prove this. While callous unemotional traits are rooted in genetics, environmental triggers are an important contributing factor for the development of antisocial behaviour in children with the genetic propensity. [15]
Human behaviour genetics is an interdisciplinary subfield of behaviour genetics that studies the role of genetic and environmental influences on human behaviour. Classically, human behavioural geneticists have studied the inheritance of behavioural traits.
For example, when individuals suffer from a mutation that causes them to have low levels of serotonin, there is an observed increase in impulsivity and depression [8] With neurotransmitters playing a central role in the development of aggressive behaviour, it follows that many of the gene mutations that have been implicated with aggressive ...
Aggression may also occur for self-protection or to protect offspring. [29] Aggression between groups of animals may also confer advantage; for example, hostile behavior may force a population of animals into a new territory, where the need to adapt to a new environment may lead to an increase in genetic flexibility. [30]
Many examples of genetic factors of social behavior have been derived from a bottom-up method of altering a gene and observing the change it produces in an organism. Sociogenomics is an integrated field that accounts for the complete cellular genetic complement of an organism from a top-down approach, accounting for all biotic influences that ...