“The skin in common with the nervous system arises from the outermost of the three embryonic cell layers, the ectoderm. The ectoderm constitutes the general surface covering of the embryonic body. The ectoderm also gives rise to hair, teeth, and the sense organs of smell, taste, hearing, vision and touch – everything involved with what goes on outside the organism. The central nervous system .. developes as the inturned portion of the general surface of the embryonic body… The nervous system is, then, a buried part of the skin, or alternatively the skin may be regarded as an exposed portion of the nervous system.” (Ashley Montagu)				intro MODEL in short! research (abstract) german pdf integrating work fields by... ...brainstorm! references