Question

______ exposes a tiny region of the brain to a strong magnetic field, causing a momentary interruption of electrical activity and thereby identifying areas of the brain that are responsible for particular functions.

multiple choice

○ electroencephalogram (eeg)

○ transcranial magnetic stimulation (tms)

○ positron emission tomography (pet)

○ computed tomography (ct)

Explanation:

• EEG records brain waves, not use magnetic fields.
• TMS uses strong magnetic fields to disrupt brain electrical activity temporarily to map functions.
• PET uses radioactive tracers to show brain activity, not magnetic fields.
• CT uses X - rays for imaging, no magnetic field disruption. So TMS matches the description.

Answer:

B. Transcranial magnetic stimulation (TMS)