Question

Dr. Billings studies brain wave patterns that occur when people are dreaming. He attaches a device to the outside of people's skulls to measure electrical activity in their brains. What type of device is he using? a CT scanan EEGa PET scanan MRI

Answer 1

Answer:

EEG Scan

Explanation:

Computerized Tomography (CT) scan uses X-ray images to create 2D  image of body part, it is an advanced X-ray scan.

Positron Emission Tomography (PET) scan uses radioactive tracer to find tissue differences at a molecular level. It detects how functional internal organs are.

Magnetic Resonance Imaging (MRI) uses strong magnetic fields and radio waves to observe and analyse the organs of the body.

ElectroEncephaloGram (EEG) uses electrical activity of the brain. It tracks and records the patterns of waves in the brain and the electrical signal they produce.

Answer 2

Answer:

Answer is EEG.

Explanation:

EEG means electroencephalogram, and it involves the use of flats metal disc, known as electrodes, to evaluate or find the problems related to electrical activity of the brain. These flats metal disc are attached to the scalp of  the brain with wires then connect with a computer to record the result.

EEG tracks and records brain wave pattern. It is used to diagnose brain and sleep disorder.

Therefore, the device used by Dr. Billings is electroencephalogram, EEG.