  A one-boson-exchange model for the hyperon-nucleon (\Lambda N, \Sigma N)
interaction is presented. The model incorporates the standard one boson
exchanges of the lowest pseudoscalar and vector meson multiplets with coupling
constants fixed by SU(6) flavor symmetry relations. As the main new feature of
the model, the contributions in the scalar--isoscalar (\sigma) and
vector--isovector (\rho) exchange channels are now constrained by a microscopic
model of correlated \pi\pi and K \bar K exchange. Additional short-ranged
ingredients of the model in the scalar--isovector (a_0) and scalar--isospin-1/2
(\kappa) channels are likewise viewed as arising from meson-meson correlations
but are treated phenomenologically. With this model a satisfactory reproduction
of the available hyperon-nucleon data can be achieved.
