AUTHOR=Van Maanen Leendert , Grasman Raoul P., Forstmann Birte U., Wagenmakers Eric-Jan 

TITLE=Piéron's law and optimal behavior in perceptual decision-making

JOURNAL=Frontiers in Neuroscience

VOLUME=volume 5 - 2011

YEAR=2012

URL=https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2011.00143

DOI=10.3389/fnins.2011.00143

ISSN=1662-453X

ABSTRACT=Piéron's Law describes a psychophysical regularity between mean response times and stimulus intensity in signal detection tasks. In this paper we extend this notion to perceptual two-choice decision-making, and demonstrate that Piéron's Law holds as the discriminability between two competing choices is manipulated. We present a Bayesian ideal observer model that explains why a Piéron-like regularity is found when stimulus discriminability is manipulated, and discuss how this model can be extended to cover signal detection tasks.