[Neural differentiation starting with very young dissociated cells]

Before the appearance of the morphological primordium of the nervous dissociated, reaggregate selectively "in vitro" and reach high levels of neural differentiation and organization. This property allows the experimental reproduction of the neural differentiation process. Before the appearance of the morphological primordium of the nervous system, its precursory cells carry the necessary information to put in action the basic characteristics of cell differentiation and structural organization, even isolated from the influence of mesoblastic cells.