  We determine the couplings of the graviscalar radion in Randall-Sundrum
models to Standard Model fields propagating in the bulk of the space, taking
into account effects arising from the dynamics of the Goldberger-Wise scalar
that stabilizes the size of the extra dimension. The leading corrections to the
radion couplings are shown to arise from direct contact interactions between
the Goldberger-Wise scalar and the Standard Model fields. We obtain a detailed
interpretation of the results in terms of the holographic dual of the radion,
the dilaton. In doing so, we determine how the familiar identification of the
parameters on the two sides of the AdS/CFT correspondence is modified in the
presence of couplings of the bulk Standard Model fields to the Goldberger-Wise
scalar. We find that corrections to the form of the dilaton couplings from
effects associated with the stabilization of the extra dimension are suppressed
by the square of the ratio of the dilaton mass to the Kaluza-Klein scale, in
good agreement with results from the CFT side of the correspondence.
