Rather, like color blindness or perfect pitch, synesthesia is a difference in perceptual experience and the term "neurological" simply reflects the brain basis of this perceptual difference (see below for associated cognitive traits).

Little is known about what, if any, cognitive traits might be associated with synesthesia.

Articles related to psychometrics (measuring intelligence and cognitive traits) include:

Achievement tests are often contrasted with tests that measure aptitude, a more general and stable cognitive trait.

He does allow that most intellectual differences among races are probably due to unequal experience, but maintains that cognitive traits distinguishing the sexes well up from the genes.

Psychometrics (measuring intelligence and cognitive traits)

Duff was primarily interested in establishing the cognitive traits that explained variance in people's accomplishments.

Allen and Marotz (2003) also list some perceptual cognitive developmental traits specific for this age group.

It is important to understand that "natural selection shapes not only the physical characteristics of organisms, but also their behavioral and cognitive traits".

One potential explanation for gender differences is that risk and ambiguity are related to cognitive and noncognitive traits on which men and women differ.