  Motivated by recent work [D. Cubero et al., Phys. Rev. E 82, 041116 (2010)],
we examine the mechanisms which determine current reversals in rocking ratchets
as observed by varying the frequency of the drive. We found that a class of
these current reversals in the frequency domain are precisely determined by
dissipation-induced symmetry breaking. Our experimental and theoretical work
thus extends and generalizes the previously identified relationship between
dynamical and symmetry-breaking mechanisms in the generation of current
reversals.
