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Genetic behavior correlation studies – studies that use scientific data and attempt to correlate it with actual human behavior. Examples include twin studies and adoption studies . These three main experimental types are used in animal studies , studies testing heritability and molecular genetics , and gene/environment interaction studies.
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 ...
The evolutionary neuroandrogenic (ENA) theory is a conceptual framework which seeks to explain trends in violent and criminal behavior from an evolutionary and biological perspective. It was first proposed by the sociologist Lee Ellis in 2005 in his paper "A Theory Explaining Biological Correlates of Criminality" published in the European ...
Aggressionism is a philosophical theory that the only real cause of war is human aggression, which refers to the "general tendency to attack members of one's species." [1] It is argued that aggression is a natural response to defend vital interests such as territory, family, or identity if threatened. [1]
Genetic mouse mutants illustrate the power that genes exert on behavior. For example, the transcription factor FEV (aka Pet1), through its role in maintaining the serotonergic system in the brain, is required for normal aggressive and anxiety-like behavior. [21]
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.
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]
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 ...