Lesson 3.2.3.4.2
3.2.3.4.2 Scanning techniques: CT, PET and fMRI Quiz: AQA Psychology, Unit 7
20 questions
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Lesson 3.2.3.4.2, Scanning techniques: CT, PET and fMRI: 20 multiple choice questions for the AQA GCSE Psychology (8182), Unit 7: Brain and neuropsychology, written with Revision Ninja.
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The 20 questions
-
Which scan uses X-rays from multiple angles to create a structural image of the brain?
- CT scan
- fMRI scan
- EEG
- PET scan
-
Which brain scanning technique involves injecting a radioactive tracer into the patient?
- fMRI scan
- EEG
- CT scan
- PET scan
-
What does an fMRI scan measure to determine which brain regions are currently active?
- Blood oxygen levels
- X-ray absorption
- Electrical voltage
- Radioactive glucose
-
Why is an fMRI scan safer to repeat frequently than a PET scan?
- Takes less time
- Requires no movement
- No radiation exposure
- Uses fewer X-rays
-
Which scan is most suitable for detecting physical structural damage following a head injury?
- PET scan
- CT scan
- EEG
- fMRI scan
-
A bright area on a PET scan image indicates high levels of what?
- Skull density
- Brain activity
- Magnetic interference
- Bone strength
-
What type of radiation is used to produce images in a CT scan?
- Infrared light
- Radio waves
- Gamma rays
- X-rays
-
Which scanning technique best tracks real-time brain activity during a psychological task?
- Ultrasound
- X-ray
- CT scan
- fMRI scan
-
Which scan shows active brain areas lighting up by detecting increased blood flow?
- CT scan
- X-ray
- fMRI scan
- PET scan
-
What is a main disadvantage or limitation of using PET scans?
- Uses strong magnets
- Measures only bone
- Poor image quality
- Involves radiation
-
Which scan reveals whether a brain lesion affects functional brain activity?
- EEG
- fMRI scan
- X-ray
- CT scan
-
Which brain scanning technique uses magnetic fields and radio waves?
- fMRI scan
- X-ray
- PET scan
- CT scan
-
What is a shared feature of CT, PET and fMRI scans?
- Injecting tracers
- Imaging living brains
- Using X-rays
- Measuring electricity
-
What is the primary advantage of CT scans over fMRI scans?
- Clearer structural detail
- Uses no radiation
- Shows active functions
- Measures blood oxygen
-
Which scan measures brain activity during anxiety by tracking tracer accumulation?
- CT scan
- PET scan
- X-ray
- Ultrasound
-
Why is the number of PET scans per participant strictly limited?
- High cost
- Time constraints
- Brain fatigue
- Radiation exposure
-
Which scanning technique provides structural images of the brain rather than functional activity?
- PET scan
- CT scan
- fMRI scan
- EEG scan
-
Which brain scanning technique measures changes in blood oxygen levels during a task?
- CT scan
- fMRI
- EEG
- PET scan
-
Which scanning technique carries no risk of radiation and can be safely repeated?
- fMRI
- PET scan
- X-ray
- CT scan
-
What do PET scans use to measure functional activity in the brain?
- X-ray beams
- Electrical signals
- Radioactive tracers
- Magnetic fields
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