Full Idea
The best candidates for the status of mental modules are language (the first one, put there by Chomsky), commonsense biology, commonsense physics, commonsense psychology, and aspects of visual form perception.
Gist of Idea
Obvious modules are language and commonsense explanation
Source
Jerry A. Fodor (In a Critical Condition [2000], Ch.13)
Book Reference
Fodor,Jerry A.: 'In Critical Condition' [MIT 2000], p.154
A Reaction
My favourite higher level module is my Personal Assistant, who keeps nagging me to do sundry things, only some of which I agree to. It is an innate superego, but still a servant of the Self.