García Pérez, Miguel ÁngelAlcalá Quintana, Rocío2023-06-202023-06-202012García-Pérez, M. A., & Alcalá-Quintana, R. (2010). Reminder and 2AFC tasks provide similar estimates of the difference limen: A reanalysis of data from Lapid, Ulrich, and Rammsayer (2008) and a discussion of Ulrich and Vorberg (2009). Attention, Perception, & Psychophysics, 72, 1155-1178. doi:10.3758/ APP.72.4.1155 García-Pérez, M. A., & Alcalá-Quintana, R. (2011). Improving the estimation of psychometric functions in 2AFC discrimination tasks. Frontiers in Psychology: Quantitative Psychology and Measurement, 2(96). doi:10.3389/fpsyg.2011.00096 García-Pérez, M. A., & Alcalá-Quintana, R. (2012). Response errors explain the failure of independent-channel models of perception of temporal order. Manuscript submitted for publication. Lapid, E., Ulrich, R., & Rammsayer, T. (2008). On estimating the difference limen in duration discrimination tasks: A comparison of the 2AFC and the reminder task. Perception & Psychophysics, 70, 291-305. doi:10.3758/PP.70.2.291 Ulrich, R. (2010). DLs in reminder and 2AFC tasks: Data and models. Attention, Perception, & Psychophysics, 72, 1179-1198. doi:10.3758/APP.72.4.1179 Ulrich, R., & Vorberg, D. (2009). Estimating the difference limen in 2AFC tasks: Pitfalls and improved estimators. Attention, Perception, & Psychophysics, 71, 1219-1227. doi:10.3758/ APP.71.6.1219 Wichmann, F. A., & Hill, N. J. (2001). The psychometric function: I. Fitting, sampling, and goodness of fit. Perception & Psychophysics, 63, 1293-1313.1943-392110.3758/s13414-012-0274-3https://hdl.handle.net/20.500.14352/44911We recently published an article (García-Pérez & Alcalá- Quintana, 2010) reanalyzing data presented by Lapid, Ulrich, and Rammsayer (2008) and discussing a theoretical argument developed by Ulrich and Vorberg (2009). The purpose of this note is to correct an error in our study that has some theoretical importance, although it does not affect the conclusion that was raised. The error lies in that asymptote parameters reflecting lapses or finger errors should not enter the constraint relating the psychometric functions that describe performance when the comparison stimulus in a two-alternative forced choice (2AFC) discrimination task is presented in the first or second interval.engjournal articlehttp://dx.doi.org/10.3758/s13414-012-0274-3http://link.springer.com/journal/13414restricted access159.9.07CorrectionErrorPsicología experimental6106 Psicología Experimental