Why using brain imaging technologies.
Then use example fMRI, advantages detailed knowledge, scans give info about brain structure and function of conscious patients. high resolution, non invasive.
disadvantage, scanning technique are expensive and scans are difficult to interpret and sensitive disruption, small movements.
PET scan, large sample used with many control o rule out alternative effect on brain activity, non invasive, ongoing activity.
disadvantage, difficult interpret, lack of precision, fmri is easier, expensive and needs to be injected.