Behavioural genetics, also commonly referred to as behaviour genetics, is the field of study that examines the role of genetic and environmental influences on behaviour, with subspecialties focused on human behavioural genetics and animal behaviour genetics. Behavioural genetics is a field that uses genetic methodologies to understand the nature and origins of individual differences in behaviour. Often associated with the "nature versus nurture" debate, behavioural genetics is highly interdisciplinary, involving contributions from biology, neuroscience, genetics, epigenetics, ethology, psychology, and statistics. Behavioural geneticists study the inheritance of behavioural traits and disorders. In humans, this information is often gathered through the use of genetic association studies or