Two-year-old Ethan received a head injury at school. The doctor at the emergency room wanted to do an fMRI but decided against it. Why might an fMRI be inappropriate to conduct on Ethan?
a. His brain is still growing and this test will miss certain things.
b. Ethan is too low in weight to perform the scan with this machine.
c. Ethan is a toddler, and will likely not hold still for the scan.
d. Ethan has little synaptic activity to measure.
C. fMRI requires complete stillness, something rarely achieved in awake toddlers.
Psychology
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An instinctive behavior is one that is:
a. common to an entire species. b. developed without practice. c. rigidly patterned. d. characterized by all the above.
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Common triggers for hostility between groups involve shared beliefs concerning
a. superiority. b. injustice and vulnerability. c. distrust. d. all of these.
Psychology