Module 3.3

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Which method is dependent upon injecting a radioactive chemical into the blood to measure blood flow?

PET

A stereotaxic instrument would most likely be used for ____.

placing an electrode in the brain

Women on the average have a greater density of neurons in part of the ____.

temporal lobe

Computerized axial tomography creates an image from ____.

x-rays

How does the method of transcranial magnetic stimulation of brain areas differ from magnetic inactivation?

Brain activation results from mild, brief magnetic stimulation.

Evoked potentials in the brain are most likely to be detected by a(n) ____.

EEG

Thus far, it appears that the brain feature most strongly correlated with IQ in humans is the ____.

amount of gray matter

Which technique is dependent upon the release of oxygen from hemoglobin molecules?

fMRI

An electroencephalograph measures ____.

the average activity of the cells in a given region of the brain

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