Question

what is the name of the procedure used to trace axonal pathway activity in the brain?
o a. diffusion tensor imaging
o b. transcranial magnetic stimulation
o c. positron emission tomography
o d. optogenetics

Explanation:

Diffusion tensor imaging (DTI) is a magnetic - resonance imaging (MRI) technique that can be used to trace axonal pathway activity in the brain by measuring the diffusion of water molecules in white - matter tracts. Transcranial magnetic stimulation is used to stimulate neural activity, positron emission tomography is used to image metabolic processes, and optogenetics is a technique for controlling neurons with light.

Answer:

A. Diffusion tensor imaging