Following Brain Damage in a Small Area of His Brain

Multiple Choice

Following brain damage in a small area of his brain, Lionel is unable to comprehend the meaning of others' facial expressions. Developmental researchers conclude that the damaged area of the brain is responsible for comprehension of the meaning of facial expressions.
The researchers probably used to make this determination.

A) PET scans
B) fMRI images
C) EEG recordings
D) a neuropsychological approach