Background Reading

Neuroscience is contributing to an understanding of the biological bases of human intelligence differences. This work is principally being conducted along two empirical fronts: genetics — quantitative and molecular — and brain imaging.

A exploratory workshop was held to consider what could be gained by adding genetic analyses to attempts to understand economic behavior.

Previous studies have indicated that high neuroticism is associated with early mortality. However, recent work suggests that people's level of neuroticism changes over long periods of time. We hypothesized that such changes in trait neuroticism affect mortality risk.

In intelligence investigations, such as those into reports of chemical- or biological-weapons (CBW) use, evidence may be difficult to assemble and, once assembled, to weigh.

This chapter focuses on individual differences in personality, because differences among individuals are the most remarkable feature of human nature. After all, in both genetic and cultural evolution, selection pressures operate on differences among people.