Ways of Studying the Brain

Question 1

What is temporal resolution?

Answer 1

the accuracy of the scanner in relation of time (how quickly the scanner can detect changes in brain activity)

Question 2

What is spatial resolution?

Answer 2

refers to the smallest feature (or measurement) that a scanner can detect

Question 3

What is invasive vs non-invasive?

Answer 3

invasive tests are done by cutting or entering a body part using medical instruments, whereas non-invasive tests do not require breaking the skin or entering the body

Question 4

What is causation?

Answer 4

Where a cause and effect can be established

Question 5

What are the four ways of studying the brain?

Answer 5

fMRI
EEG
ERP
Post-Mortem Examinations

Question 6

How does fMRI work?

Answer 6

• Neurons that are the most active use the most energy (glucose and oxygen)
• Deoxygenated and oxygenated blood have different magnetic qualities
• Detects changes in blood oxygenation and flow that occurs during changes to neural activity in specific brain areas
• Produces a 3D image showing which parts are most active during particular mental processes

Question 7

What is the temporal and spatial resolution of fMRI?

Answer 7

Temporal: 1-4 seconds
Spatial: 1-2 minutes