For example, Schaffer and Emerson (1964) discovered what appeared to be innate differences in sociability in babies; some babies preferred cuddling more than others, from very early on, before much interaction had occurred to cause such differences. (simplypsychology.org)
A first and still very common version of differentialism is the naturalist one: innate differences between the sexes are supposed to explain different behaviours and social positions. (blog.politics.ox.ac.uk)
The sessions draw heavily on brain science to shed light on the innate differences between men and women — and enable managers and colleagues to work «across» them. (canadianbusiness.com)