@misc{indiciae605d98de3522, title = {Contour detection threshold: repeatability and learning with 'contour cards'.}, author = {P M Pennefather and A Chandna and I Kovacs and U Polat and A M Norcia}, year = {1999}, doi = {10.1163/156856899x00157}, url = {https://pubmed.ncbi.nlm.nih.gov/10442513/}, note = {Source identifier: 10442513} }