@misc{indiciaec1af9948bc52,
  title = {Attention and primary visual cortex.},
  author = {M I Posner and C D Gilbert},
  year = {1999},
  doi = {10.1073/pnas.96.6.2585},
  url = {https://pubmed.ncbi.nlm.nih.gov/10077552/},
  note = {Source identifier: 10077552}
}