Question 20N.3.HL.TZ0.5c
| Date | November 2020 | Marks available | [Maximum mark: 2] | Reference code | 20N.3.HL.TZ0.5c |
| Level | HL | Paper | 3 | Time zone | TZ0 |
| Command term | Outline | Question number | c | Adapted from | N/A |
The drawing shows a vertical section through the brain.
[Source: TefiM / istockphoto.com.]
Outline one method that can be used to investigate the function of different parts of the brain.
[2]
Alternative 1:
a. fMRI;
b. scan detects changes in blood flow/oxygen in blood
OR
more active parts of brain receive more blood flow;
Alternative 2:
c. lesions/autopsy;
d. part of the brain damaged
OR
loss of function detected;
Alternative 3:
e. stimulation during open brain surgery;
f. reaction observed;
The âfâ must be written for fMRI.
Description must relate to method named.
The majority of candidates could name one method to investigate the function of different parts of the brain, mainly fMRI, but the change in blood flow was obscure for some or lacked sufficient details; other valid methods were seen, such as lesions, autopsy or open surgery.
