Module 3.3 // Module 4.1
How does the method of transcranial magnetic stimulation of brain areas differ from magnetic inactivation?
Brain activation results from mild, brief magnetic stimulation.
Sex-linked genes are usually found on the Y chromosome. T/F
False
Genes become more prevalent in a population if they contribute to reproductive success. T/F
True
To determine the contributions of heredity and environment, researchers rely mainly on studies of monozygotic and dizygotic twins. T/F
True
Which technique is dependent upon the release of oxygen from hemoglobin molecules?
fMRI
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
An electroencephalograph measures ____.
the average activity of the cells in a given region of the brain
Computerized axial tomography creates an image from ____.
x-rays
Evoked potentials in the brain are most likely to be detected by a(n) ____.
EEG
Which method is dependent upon injecting a radioactive chemical into the blood to measure blood flow?
PET
Thus far, it appears that the brain feature most strongly correlated with IQ in humans is the ____.
amount of gray matter
