  We investigate the effects of external and autonomous global interaction
fields on an adaptive network of social agents with an opinion formation
dynamics based on a simple imitation rule. We study the competition between
global fields and adaptive rewiring on the space of parameters of the system.
The model represents an adaptive society subject to global mass media such as a
directed opinion influence or feedback of endogenous cultural trends. We show
that, in both situations, global mass media contribute to consensus and to
prevent the fragmentation of the social network induced by the coevolutionary
dynamics. We present a discussion of these results in the context of dynamical
systems and opinion formation dynamics.
