A Better Method to Quantify Perceptual Thresholds : Parameter-free, Model-free, Adaptive procedures
Julien Audiffren · University of Fribourg
Wed, Mar 1, 2023 · 16:00 UTC
The ‘quantification’ of perception is arguably both one of the most important and most difficult aspects of perception study. This is particularly true in visual perception, in which the evaluation of the perceptual threshold is a pillar of the experimental process. The choice of the correct adaptive psychometric procedure, as well as the selection of the proper parameters, is a difficult but key aspect of the experimental protocol. For instance, Bayesian methods such as QUEST, require the a priori choice of a family of functions (e.g. Gaussian), which is rarely known before the experiment, as