Physiological explanations for criminal behaviour

Brain dysfunction - limbic system (amygdala, hippocampus and thalamus responsible for emotional response , damage to the system leads to abnormal responses how do you investigate brain activity- Position Emission Tomography PET and FMRI genes- the warrior gene is associated with violent behaviour by a mutation hormones- cortisol leads to anti social behaviour and testosterone leads to aggressive behaviour low resting heart rate 5-17% of gender difference in crime