A Unified Theory of Human Judgements and Decision-Making under Uncertainty

Sandro Sozzo, Raffaele Pisano

Research output: Contribution to journalArticle

3 Citations (Scopus)
24 Downloads (Pure)

Abstract

Growing empirical evidence reveals that traditional set-theoretic structures cannot in general be applied to cognitive phenomena. This has raised several problems, as illustrated, for example, by probability judgement errors and decision-making (DM) errors. We propose here a unified theoretical perspective which applies the mathematical formalism of quantum theory in Hilbert space to cognitive domains. In this perspective, judgements and decisions are described as intrinsically non-deterministic processes which involve a contextual interaction between a conceptual entity and the cognitive context surrounding it. When a given phenomenon is considered, the quantum-theoretic framework identifies entities, states, contexts, properties and outcome statistics, and applies the mathematical formalism of quantum theory to model the considered phenomenon. We explain how the quantum-theoretic framework works in a variety of judgement and decision situations where systematic and significant deviations from classicality occur.
Original languageEnglish
Article number738
Number of pages34
JournalEntropy
Volume22
Issue number7
DOIs
Publication statusPublished - Jul 2020

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