Sensitivities of the cell types to the initial conditions.

Initial values X(0) of the initial cell populations and the number of molecules of Aβ in an arbitrary local volume and orders of magnitude for the sensitivity coefficients S(Nj, j = s,d) = dNj/d(X(0)) determined after 20 years for tenfold perturbations, i.e., 10× and 10−1×, in these initial values.