- MAOA Gene
- associated with agression> regulates metabolism of serotonin in the brain.
Brunner> dutch fam in 80s, males particularly agressive, led to abnormally low MAOA gene levels.
H/ever: behaviour could be learnt from older members influencing behaviour thru principles of SLT/imitation.
- Researchers also look at gene-env interaction.
- found variant of MAOA where low levels= agression but only if maltreated during childhood.