There is no induced motion at near-threshold velocities.

@article{Wagenaar1984ThereIN,
  title={There is no induced motion at near-threshold velocities.},
  author={Willem A. Wagenaar and J Frankenhuizen and Joeren Vos and G B Flores d'Arcais},
  journal={Acta psychologica},
  year={1984},
  volume={55 3},
  pages={295-313}
}