Chapter 1

Question 1

Positron-emission tomography (PET)

Answer 1

based on the fact that increased activity in a particular brain region is associated with increased blood flor and energy consumption in that region

Question 2

Magnetic resonance imaging (MRI)

Answer 2

does not involve invasive procedures such as injections of radioactive substances. while a person lies in a magnetic tube, her brain is bombarded with powerful but harmless magnetic fields

Question 3

Functional MRI

Answer 3

combines the ability to produce a detailed image of the brain’s structures with the capacity to track the brain’s activity or functioning.