Researching The Brain

Question 0

Neuroimaging Techniques

Answer 0

Computer programs that convert the data taken from brain-scanning devices into visual images of the brain

Question 1

Electroencephalogram (EEG)

Answer 1

Measures electrical activity towards the surface of the brain (near the skull) by placing electrodes on the scalp, capitalising on the fact that every time a nerve cell fires it produces electrical activity

Question 2

Computerised Axial Tomography (CAT)

Answer 2

Rotates an X-ray tube around a person’s head, producing a series of X-ray pictures. A computer then compiles these pictures into a composite visual image

Question 3

Magnetic Resonance Imaging (MRI)

Answer 3

A neuroimaging technique that produces images of the brain without using x-rays

Question 4

Positron Emission Tomography (PET)

Answer 4

A neuroimaging method that requires injection of a small quantity of radioactive glucose (too small a ride to be dangerous) into the bloodstream. A computer produces a colour portrait of the brain, showing which parts are active

Question 5

Functional Magnetic Resonance Imaging (fMRI)

Answer 5

Uses MRI to watch the brain as an individual carries out tasks such as solving mathematical problems or looking at emotionally evocative pictures