  We review the status and prospects of theoretical studies of neutrino-nucleus
interactions, and discuss the influence of the treatment of nuclear effects on
the determination of oscillation parameters. The models developed to describe
the variety of reaction mechanisms contributing to the nuclear cross sections
are analysed, with emphasis placed on their capability to reproduce the
available electron scattering data.The impact of the uncertainties associated
with the description of nuclear dynamics on the the oscillation parameters is
illustrated through examples, and possible avenues towards a better
understanding of the signals detected by long baseline experiments are
outlined.
