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Question 19M.3.HL.TZ2.4b.iv

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Date May 2019 Marks available [Maximum mark: 2] Reference code 19M.3.HL.TZ2.4b.iv
Level HL Paper 3 Time zone TZ2
Command term Outline Question number b.iv Adapted from N/A
b.iv.
[Maximum mark: 2]
19M.3.HL.TZ2.4b.iv

People who are deaf often learn to communicate using sign language. In a study, brain imaging was carried out using functional magnetic resonance imaging (fMRI) of profoundly deaf and hearing people who were processing the same aspects of language. The deaf individuals in the study used either an English sign language or a French sign language.

[Source: Copyright 2000 National Academy of Sciences, U.S.A.]

(b.iv)

Outline how fMRI is used in brain studies.

[2]

Markscheme

a. active parts of brain receive increased blood flow ✔

b. harmless dye injected to make blood flow visible ✔

c. brain activity for specific tasks can be observed «in real time» ✔

Examiners report

The use of fMRI was well outlined.

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