Techniques to study the brain Flashcards
1
Q
fMRI
A
- Functional magentic resonance
- measure brain activity by detecting blood flow changes
- magnetic fields and radiowaves to detect blood oxygen dependent levels from different areas of the brain
- the signal indicates the blood flow levels and thus the activity
- fMRI scans to pinpoint areas of high activity
2
Q
MRI
A
- radio waves and magnets
- protons in body align with magnets
- when hit with radiowaves they hit out of alignment so when the waves are switched off they go back in alignment
- emitt radiowaves an you get a picture