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Question 18N.3.SL.TZ0.b

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Date November 2018 Marks available [Maximum mark: 2] Reference code 18N.3.SL.TZ0.b
Level SL Paper 3 Time zone TZ0
Command term Explain Question number b Adapted from N/A
b.
[Maximum mark: 2]
18N.3.SL.TZ0.b

The diagram shows a magnetic resonance image (MRI) of a human brain.

 

Explain how a functional MRI (fMRI) can be used to identify the function of parts of the brain.

[2]

Markscheme

a. magnetic field is used to make pictures of brain/organs/structures ✔

b. an fMRI shows changes in blood flow ✔

c. increased blood flow associated with activity in specific areas of the brain ✔

d. performance of task matched with active area of brain ✔

Syllabus sections