How we study the brain

Question 1

CAT

Answer 1

• structure
• creates 3D images of internal organs and body structures
• measure of brain activity when subjects perform a task

Question 2

MRI

Answer 2

• structure

- can alter magnetic field of a section of brain so technician can pick certain area to c the sturcture

Question 3

fMRI

Answer 3

• functional

- MRi but can show brain activity by detecting changes in the blood flow

Question 4

EEG

Answer 4

• function
• allows researchers to follow electrical impulses across surface of brain and observe changes over split seconds of time

Question 5

MEG

Answer 5

• functional

- provides most accurate resolution of the timing of nerve cell activity- down to the millisecond