
TL;DR
This paper presents Quantum Decision Theory (QDT), a mathematical framework inspired by quantum measurement principles, to model human decision-making processes involving conscious and subconscious factors, and demonstrates its agreement with experimental data.
Contribution
It introduces a novel quantum-inspired model of decision making that accounts for emotional and subconscious influences, extending classical theories without implying the brain is quantum.
Findings
QDT solves classical decision paradoxes.
Excellent agreement with experimental data.
Application to prisoner dilemma game.
Abstract
This chapter, dedicated to the memory of Mino Freund, summarizes the Quantum Decision Theory (QDT) that we have developed in a series of publications since 2008. We formulate a general mathematical scheme of how decisions are taken, using the point of view of psychological and cognitive sciences, without touching physiological aspects. The basic principles of how intelligence acts are discussed. The human brain processes involved in decisions are argued to be principally different from straightforward computer operations. The difference lies in the conscious-subconscious duality of the decision making process and the role of emotions that compete with utility optimization. The most general approach for characterizing the process of decision making, taking into account the conscious-subconscious duality, uses the framework of functional analysis in Hilbert spaces, similarly to that used…
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