@misc{indiciaea0d9ce3753be,
  title = {Visual attention affects brain blood flow.},
  author = {S C Bondy and R A Lehman and J L Purdy},
  year = {1974},
  doi = {10.1038/248440a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4823673/},
  note = {Source identifier: 4823673}
}