Contextuality-by-default: a brief overview of ideas, concepts, and terminology

EN Dzhafarov, JV Kujala, VH Cervantes - Quantum Interaction: 9th …, 2016 - Springer
This paper is a brief overview of the concepts involved in measuring the degree of
contextuality and detecting contextuality in systems of binary measurements of a finite …

Context–content systems of random variables: The Contextuality-by-Default theory

EN Dzhafarov, JV Kujala - Journal of Mathematical Psychology, 2016 - Elsevier
This paper provides a systematic yet accessible presentation of the Contextuality-by-Default
theory. The consideration is confined to finite systems of categorical random variables …

Contextuality-by-Default 2.0: Systems with binary random variables

EN Dzhafarov, JV Kujala - … : 10th International Conference, QI 2016, San …, 2017 - Springer
The paper outlines a new development in the Contextuality-by-Default theory as applied to
finite systems of binary random variables. The logic and principles of the original theory …

Contextuality in three types of quantum-mechanical systems

EN Dzhafarov, JV Kujala, JÅ Larsson - Foundations of Physics, 2015 - Springer
We present a formal theory of contextuality for a set of random variables grouped into
different subsets (contexts) corresponding to different, mutually incompatible conditions …

Measures of contextuality and non-contextuality

JV Kujala, EN Dzhafarov - Philosophical Transactions of …, 2019 - royalsocietypublishing.org
We discuss three measures of the degree of contextuality in contextual systems of
dichotomous random variables. These measures are developed within the framework of the …

Quantum cognition, neural oscillators, and negative probabilities

JA de Barros, G Oas - The Palgrave Handbook of Quantum Models in …, 2017 - Springer
This review paper has three main goals. First, to discuss a contextual neurophysiologically
plausible model of neural oscillators that reproduces some of the features of quantum …

Some examples of contextuality in physics: Implications to quantum cognition

J Acacio De Barros, G Oas - Contextuality from quantum physics to …, 2016 - World Scientific
Contextuality, the impossibility of assigning a single random variable to represent the
outcomes of the same measurement procedure under different experimental conditions, is a …

Probabilistic foundations of contextuality

EN Dzhafarov, JV Kujala - Fortschritte der Physik, 2017 - Wiley Online Library
Contextuality is usually defined as absence of a joint distribution for a set of measurements
(random variables) with known joint distributions of some of its subsets. However, if these …

[HTML][HTML] Indistinguishability and negative probabilities

JA de Barros, F Holik - Entropy, 2020 - mdpi.com
In this paper, we examined the connection between quantum systems' indistinguishability
and signed (or negative) probabilities. We do so by first introducing a measure-theoretic …

Negative probabilities and contextuality

JA de Barros, JV Kujala, G Oas - Journal of Mathematical Psychology, 2016 - Elsevier
There has been a growing interest, both in physics and psychology, in understanding
contextuality in experimentally observed quantities. Different approaches have been …