Aggression:this is behaviour that is aimed at harming other people such as punching someone in tha face
The Bioglogical Explanation
Hormones have been propesed as being involved in aggression.Hormones are chemicals that are released by our edocrine system that affect how our bodies function and how we behave. It is widely accpeted that males are more aggressive than femals. The most obvious hormonal difference is that mean have much more testosterone than women, and so this is thought to be the cause of aggression in males.This has been supported by the finding that criminals imprisoned for violent crimes have higher levels of testosterone that non violent criminals.
A second difference between violent and non violent offenders is a chromosomal abnormality there is a higher than normal proportion of men with an extra Y chromosome amongst violent offenders when the 23rd chromosome fails to divide some men end uo with a XYY arrangement.This has certain effects, including making men more aggressive than normal
Aim: to investigate whether there were any differences between the brains of murders and non murderes
Method:41 murderes in California were given a PET scan and compared wirh a similar group of non murderes
Results:There were some differences including lower activity in the prfrontal cortex of…