Brain Imaging Techniques Quiz

Which technique provides static, high-resolution images of brain structure?

• PET

• fMRI

• EEG

• MRI

Functional MRI (fMRI) primarily measures:

• Electrical activity of neurons

• Glucose metabolism

• Changes in blood oxygenation

• Structural connectivity

PET scans require the injection of a:

• Magnetic contrast agent

• Radioactive tracer

• Glucose supplement

• Neurotransmitter analog

Which imaging technique would best show which brain regions are active during a memory task?

• MRI

• fMRI

• CT

• DTI

Maguire et al. (2000) used which technique to study London taxi drivers?

• PET

• fMRI

• MRI

• TMS

Which of the following is a limitation of fMRI?

• Low spatial resolution

• Correlational data only

• Requires radioactive tracers

• Cannot detect functional changes

PET is unique among the three techniques because it directly measures:

• Structural volume

• Blood-oxygen level

• Metabolic activity

• Electrical potentials

In Sharot et al. (2007), fMRI revealed increased activity in the:

• Hippocampus

• Amygdala

• Prefrontal cortex

• Cerebellum

Which technique is most invasive (in terms of requiring a foreign substance)?

• MRI

• fMRI

• PET

• MEG

A study aiming to map glucose utilization across the brain would choose:

• MRI

• EEG

• PET

• fMRI