@misc{indiciae10be70fb7ed5,
  title = {Evidence for separate motion-detecting mechanisms for first- and second-order motion in human vision.},
  author = {T Ledgeway and A T Smith},
  year = {1994},
  doi = {10.1016/0042-6989(94)90229-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/7975310/},
  note = {Source identifier: 7975310}
}