Which brain-scanning technique below is CORRECTLY matched with its description?
A)EEG-records the brain's electrical activity with electrodes
B)PET-causes a momentary interruption of the brain's electrical activity
C)fMRI-traces biochemical activity in the brain
D)TMS-produces a graph of electrical wave patterns

Question

Quizplus · Accepted Answer

EEG (Electroencephalography) is a brain-scanning technique that records the brain's electrical activity with electrodes attached to the scalp. This technique is used to diagnose brain disorders, measure the depth of anesthesia, and study sleep patterns.

B) PET (Positron Emission Tomography) involves injecting a radioactive substance into the bloodstream, which is then taken up by the brain cells. This allows for the tracing of blood flow to different regions of the brain to measure its activity levels.

C) fMRI (functional Magnetic Resonance Imaging) traces changes in blood flow and blood oxygenation to detect which areas of the brain are active when a particular task or stimulus is presented.

D) TMS (Transcranial Magnetic Stimulation) involves applying a magnetic pulse to a specific region of the brain, stimulating the neurons in that area and producing a graph of the electrical wave patterns. This technique is often used to study brain function and has potential therapeutic uses in treating depression and other disorders.

Which Brain-Scanning Technique Below Is CORRECTLY Matched with Its Description