@article{3559,
  title = {Spatial four-alternative forced-choice method is the preferred psychophysical method for naive
  observers},
  journal = {Journal of Vision},
  volume = {6},
  number = {11},
  pages = {1307-1322},
  organization = {Max-Planck-Gesellschaft},
  school = {Biologische Kybernetik},
  month = nov,
  year = {2006},
  author = {J{\"a}kel, F. and Wichmann, FA.},
  doi = {10.1167/6.11.13},
  month_numeric = {11}
}