To identify which specific brain areas are most active during a particular mental task, researchers would be most likely to make use of a() fmri. b) microelectrode insertion. c) mri. d) brain lesion.

Option A

Explanation:

FMRI stanstands for "Function magnetic resonance imaging. This is a technique used to determine the activity of an area in the brain ,this method is achieved when there is a change in blood area within that area, with this we can determine the activity of the brain that part of the brain.

the use of electrical signals that transit messages is know as