A neurologically typical person.
Are you a NeuroTypical? (Many geeks aren't.) Check it out on The Institure for the Study of the Neurologically Typical (which is from an Autistic point of view).
NeuroTypicality is a terrible affliction ;), see this link and the next sentence: GregEganOnNeurotypicalSyndrome. You may also try to understand Neutotypicality from an autie/aspie point of view. http://home.att.net/ascaris1/neurotypicality.htm