Ocupation: Psychologist
Life: b. September 18, 1954
Birthday: September 18
According to a recent study of the brains of identical and fraternal twins, differences in the amount of gray matter in the frontal lobes are not only genetically influenced but are significantly correlated with differences in intelligence.
source: Steven Pinker (2003). “The Blank Slate: The Modern Denial of Human Nature”, p.73, Penguin
topic: Gray Matter, Differences, Brain, Fraternal