Loss aversion may have the same brain areas as reward or different: tom et al. looked at this with fMRI. Assessed reward an punishment by points...They found in the reward context, brain areas associated with reward were activated (basal ganglia, striatum and frontal areas). The more reward, the more brain activity. They found these areas decreased in punishment tasks, suggesting this research is more analysing negative reinforcement with prediction errors. This is because in punishment, brain areas like the insula are activated and this study did not find any activity in punishment related areas. However, what it does suggest is that when we look at reward and punishment, they do use the same brain areas in the decision-making process, suggesting its involved in loss aversion.