_____ is BEST at detecting activity in the sulci of the cortex and is less sensitive to activity in the gyri or activity deep in the brain.
A) EEG
B) fMRI
C) MEG
D) PET

Question

Quizplus · Accepted Answer

MEG (Magnetoencephalography) is best at detecting activity in the sulci of the cortex because magnetic fields produced by cortical activity are not distorted by intervening tissue, so they can be precisely localized to specific regions of the brain. Conversely, fMRI (Functional Magnetic Resonance Imaging) is less sensitive to activity in the sulci and more sensitive to activity in the gyri. PET (Positron Emission Tomography) primarily detects activity deep in the brain, while EEG (Electroencephalography) has limited spatial resolution and is most sensitive to activity on the cortical surface.

_____ Is BEST at Detecting Activity in the Sulci of the Cortex