An analysis of Albert Einstein's brain showed that Einstein's brain
a. was not different from the brains of people with average intelligence.
b. was different in the hippocampus and parietal lobe compared with the brains of people with average intelligence.
c. had unusual asymmetry in the planum temporale.
d. had larger than average amounts of gray matter in the frontal lobes and language areas.
Question 2
Compared with the brains of people with average intelligence, the brains of highly intelligent people
a. do not show any systematic structural differences, because intelligence is determined by environmental factors, not biological factors.
b. show higher volumes of gray matter and cortical thickness in the prefrontal and temporal lobes.
c. show thinner cortical layers.
d. are actually smaller in volume, making them operate more efficiently.