Answer:
In the explanation spot
Explanation:
CT and PET scans use something called a 'tracer' to look for disease and/or injury in the brain. Tracers are radioactive but help researchers identify any problems within the brain. As for the second question, altering the occipital lobe could cause potential blindness. Altering with the temporal lobe could reduce fear, violence, and loss of ability to understand a certain language. Hope this helped! :)
Update: I was able to use the answer feature. Let me know if you are confused!
