It's Not Just Language.
Language is at the center of human activity.
As naturally as spiders spin webs and birds build nests, humans produce and understand language. If language is as natural to people as webs are to spiders, then it's possible that children are biologically programmed to learn language. Psycholinguists examine the cognitive aspects of language. Neurolinguists look at brain structures where language is located and what happens to them when language is lost, in aphasia and other language deficits. Stereotypes like these arise from differences in speech patterns, which can be based not only on geography, but on gender, ethnic identity, and a host of other social factors.