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Question 18M.3.HL.TZ1.c

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Date May 2018 Marks available [Maximum mark: 2] Reference code 18M.3.HL.TZ1.c
Level HL Paper 3 Time zone TZ1
Command term Outline Question number c Adapted from N/A
c.
[Maximum mark: 2]
18M.3.HL.TZ1.c

Outline the functional magnetic resonance imaging (fMRI) technique for brain research.

[2]

Markscheme

a. (measures brain activity by) detecting changes associated with blood flow 

b. more active parts of brain receive more blood flow 

c. activity leads to change in magnetization between oxygen-rich and oxygen-poor blood 

d. scans/images are taken while the subject is exposed to a stimulus/activity

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