  In finite-dimensional, chaotic, Lorenz-like wave-particle dynamical systems
one can find diffusive trajectories, which share their appearance with that of
laminar chaotic diffusion [Phys. Rev. Lett. 128, 074101 (2022)] known from
delay systems with lag-time modulation. Applying, however, to such systems a
test for laminar chaos, as proposed in [Phys. Rev. E 101, 032213 (2020)], these
signals fail such test, thus leading to the notion of pseudo-laminar chaos. The
latter can be interpreted as integrated periodically driven on-off
intermittency. We demonstrate that, on a signal level, true laminar and
pseudo-laminar chaos are hardly distinguishable in systems with and without
dynamical noise. However, very pronounced differences become apparent when
correlations of signals and increments are considered. We compare and contrast
these properties of pseudo-laminar chaos with true laminar chaos.
