Ways Of Studying The Brain

Question 1

What are post Mortem examinations

Answer 1

Analysis of brain after death
Identifies disorders
Compare to healthy brains
Tan had speech issues- after death lesion in Broca’s area found

Question 2

What does fMRI stand for

Answer 2

Functional magnetic resonance imagery

Question 3

What is fMRI

Answer 3

Detects change in blood oxygen
If brain is active=more oxygen

Question 4

What do EEG’s do

Answer 4

Electrodes on scalp
Detects changes in brain activity
Graphs
Sleep patterns- identify sleep disorders

Question 5

Evaluate post mortems

Answer 5

+ brocas/ wernicks area support
- no consent- patient HM had informed consent

Question 6

Evaluate fMRIs

Answer 6

+ doesn’t rely on radiation like PET- risk free/ non invasive
- expensive- only images if u stay still- 5 second lag- only measures blood flow in the brain not neurons- difficult to draw conclusions

Question 7

Evaluate EEGs

Answer 7

+ diagnoses epilepsy- understands ultradium rhythms- high temporal resolution
- generalised info- can’t pinpoint exact neural activity

Question 8

Evaluate event related potential

Answer 8

+ specific measurement- perfect temporal resolution- p300 used in maintenance of working memory
- lack of standardisation- background/ extraneous materials must be completed eliminated