{"pk":28710,"title":"An Experimental Protocol to Derive and Validate a Quantum Model ofDecision-Making","subtitle":null,"abstract":"This study utilises an experiment famous in quantum physics,the Stern-Gerlach experiment, to inform the structure of an ex-perimental protocol from which a quantum cognitive decisionmodel can be developed. The ’quantumness’ of this modelis tested by computing a discrete quasi-probabilistic Wignerfunction. Based on theory from quantum physics, our hypothe-sis is that the Stern-Gerlach protocol will admit negative valuesin the Wigner function, thus signalling that the cognitive de-cision model is quantum. A crowdsourced experiment of twoimages was used to collect decisions around three questions re-lated to image trustworthiness. The resultant data was used toinstantiate the quantum model and compute the Wigner func-tion. Negative values in the Wigner functions of both imageswere encountered, thus substantiating our hypothesis. Find-ings also revealed that the quantum cognitive model was amore accurate predictor of decisions when compared to pre-dictions computed using Bayes’ rule.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"quantum cognition; decision-making; complexHilbert space; binary response; cognitive modelling"}],"section":"Papers with Poster Presentations","is_remote":true,"remote_url":"https://escholarship.org/uc/item/0b60n93d","frozenauthors":[{"first_name":"Lauren","middle_name":"","last_name":"Fell","name_suffix":"","institution":"Queensland University of Technology","department":""},{"first_name":"Shahram","middle_name":"","last_name":"Dehdashti","name_suffix":"","institution":"Queensland University of Technology","department":""},{"first_name":"Peter","middle_name":"","last_name":"Bruza","name_suffix":"","institution":"Queensland University of Technology","department":""},{"first_name":"Catarina","middle_name":"","last_name":"Moreira","name_suffix":"","institution":"Queensland University of Technology","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2019-01-01T12:00:00-06:00","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/28710/galley/18581/download/"}]}