TY - JOUR
PY - 2016//
TI - Bayesian brains without probabilities
JO - Trends in cognitive sciences
A1 - Sanborn, Adam N.
A1 - Chater, Nick
SP - 883
EP - 893
VL - 20
IS - 12
N2 - Bayesian explanations have swept through cognitive science over the past two decades, from intuitive physics and causal learning, to perception, motor control and language. Yet people flounder with even the simplest probability questions. What explains this apparent paradox? How can a supposedly Bayesian brain reason so poorly with probabilities? In this paper, we propose a direct and perhaps unexpected answer: that Bayesian brains need not represent or calculate probabilities at all and are, indeed, poorly adapted to do so. Instead, the brain is a Bayesian sampler. Only with infinite samples does a Bayesian sampler conform to the laws of probability; with finite samples it systematically generates classic probabilistic reasoning errors, including the unpacking effect, base-rate neglect, and the conjunction fallacy.
Copyright © 2016 The Authors. Published by Elsevier Ltd.. All rights reserved.
Language: en
LA - en SN - 1364-6613 UR - http://dx.doi.org/10.1016/j.tics.2016.10.003 ID - ref1 ER -