Joint probabilities and quantum cognition

Abstract

In this paper we discuss the existence of joint probability distributions for quantum-like response computations in the brain. We do so by focusing on a contextual neural-oscillator model shown to reproduce the main features of behavioral stimulus-response theory. We then exhibit a simple example of contextual random variables not having a joint probability distribution, and describe how such variables can be obtained from neural oscillators, but not from a quantum observable algebra.

11 pages, 1 figure, paper presented at the Quantum Theory: Reconsideration of Foundations - 6 conference, Vaxjo, Sweeden, June 11-14, 2012