Chapter 7 - Ways To Study The Brain

Question 1

What is an MRI?

Answer 1

Type of ct scan that is static to look at 3d view of the brain

• X-rays passed though brain followed by radio waves, and then density of hydrogen atoms emitted off is measured to view the structure

Question 2

What is diffusion tensor imaging?

Answer 2

A type of MRI procedure used to see the directional flow of water molecules in the brain to measure nerve pathways

• shows abnormalities in pathways as well as changes in myelination

Question 3

What is an fmri?

Answer 3

A dynamic brain imaging imaging technique that is magnetic resonance where molecules such as iron and oxygen are measured during a specific behaviour

• this shows the blood flow during the behaviour and resting

Good spatial
Bad TENPORAL
Must lay in a tube

Question 4

What is resting fmri?

Answer 4

Measures changes in blood flow when the participant is resting and told to focus on one object

Question 5

What is a PET SCAN

Answer 5

Imaging techniques that detects the changes in blood flow by measuring changes in the uptake of compounds such as glucose and oxygen

• used to study metabolic activity of brain

Question 6

What is a ct?

Answer 6

It is a static imaging technoque used to view the structure of the brain as well as injuries in the brain

• it is done by x-Rays going trough the head at mans different angles and then a scanning software translates it into a 3d image
• noninvasive