@misc{indiciaed3205811b0ff,
  title = {Attempted pupillary conditioning at four stimulus intervals.},
  author = {E R HILGARD and C E DUTTON and J S HELMICK},
  year = {1949},
  doi = {10.1037/h0059549},
  url = {https://pubmed.ncbi.nlm.nih.gov/15391111/},
  note = {Source identifier: 15391111}
}