| MPDiR-package | Modeling Psychophysical Data in R | 
| binom.diagnostics | Diagnostics for Binary GLM | 
| Chromatic | Chromatic Thresholds across the Life Span | 
| ConfRates | Confidence Ratings for Detection of Luminance Patch | 
| Context | Psychometric Functions for the Effects of Context on Contrast Detection | 
| CorticalCells | Contrast Response Functions from Visual Cortical Cells | 
| Faces | Perceived kinship in image pairs of children | 
| Faces2 | Perceived kinship in image pairs of children | 
| Gabor | Detection of a 2 cycle/window Gabor temporal modulation | 
| GlassPatterns | Detection of concentric patterns of dipoles in Glass Patterns | 
| Grue | Distribution of Grue Languages with UV-B Exposure | 
| HSP | Hecht, Schlaer and Pirenne (1942) psychometric functions | 
| lnorm | Likelihoods for Poisson and Gaussian psychometric functions | 
| lpois | Likelihoods for Poisson and Gaussian psychometric functions | 
| lpois1 | Likelihoods for Poisson and Gaussian psychometric functions | 
| ModelFest.df | Contrast Sensitivity of the Observers from the ModelFest Consortium | 
| Motion | Threshold for First- and Second-order Movement with Age | 
| MPDiR | Modeling Psychophysical Data in R | 
| panel.psyfun | Panel Function for Adding Psychometric Function Fit to Each Panel | 
| plot.binom.diag | Diagnostics for Binary GLM | 
| polmer | Ordinal Regression with Mixed-effects | 
| psyfun.boot | Bootstrapping Standard Errors of Psychometric Function Parameters | 
| StairCase | 3-1 Randomly Interleaved Staircase Detection Experiment | 
| thresh.est | Estimate Threshold Level from Model Object | 
| Vernier | Psychometric Functions for Vernier Judgement of Phase Difference between Drifting Gratings |