Compare and contrast three brain-imaging techniques. Be sure to include what each technique can tell us about a person's brain
What will be an ideal response?
Essay should include:
Compare three of the following:
EEG: records electrical activity in the brain (brain waves); can detect certain brain waves associated with sleep, relaxation, or neurological problems.
CT scan: x-rays of the brain; can reveal deformities, blood clots, tumors, other problems.
PET scan: tracing metabolized glucose in the brain by measuring positively charged particles; shows areas of the brain that are most active during different tasks.
MRI: person lies in magnetic field and is exposed to radio waves; measures signals from the brain; allows for repeated observations of changes in blood flow while patient is involved in different tasks.
fMRI: observe brain while it works with repeated scans of the brain.
Contrast: could include differences in what is measured in each scan (i.e. CT – x-rays, PET – glucose).
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The nervous system is made up of nerve cells called ______
Fill in the blank with correct word
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