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Risky decisions are influenced by individual attributes as a function of risk preference.
Lee, Douglas G; D'Alessandro, Marco; Iodice, Pierpaolo; Calluso, Cinzia; Rustichini, Aldo; Pezzulo, Giovanni.
Afiliación
  • Lee DG; Tel Aviv University, School of Psychological Sciences, Tel Aviv, Israel; Institute of Cognitive Sciences and Technologies, National Research Council, Rome, Italy.
  • D'Alessandro M; Institute of Cognitive Sciences and Technologies, National Research Council, Rome, Italy.
  • Iodice P; Université de Rouen, Rouen, France; Movement Interactions Performance Lab, Le Mans Université, Le Mans, France.
  • Calluso C; Luiss University, Rome, Italy.
  • Rustichini A; University of Minnesota, Hanson Hall, Minneapolis, USA.
  • Pezzulo G; Institute of Cognitive Sciences and Technologies, National Research Council, Rome, Italy. Electronic address: giovanni.pezzulo@istc.cnr.it.
Cogn Psychol ; 147: 101614, 2023 Dec.
Article en En | MEDLINE | ID: mdl-37837926
It has long been assumed in economic theory that multi-attribute decisions involving several attributes or dimensions - such as probabilities and amounts of money to be earned during risky choices - are resolved by first combining the attributes of each option to form an overall expected value and then comparing the expected values of the alternative options, using a unique evidence accumulation process. A plausible alternative would be performing independent comparisons between the individual attributes and then integrating the results of the comparisons afterwards. Here, we devise a novel method to disambiguate between these types of models, by orthogonally manipulating the expected value of choice options and the relative salience of their attributes. Our results, based on behavioral measures and drift-diffusion models, provide evidence in favor of the framework where information about individual attributes independently impacts deliberation. This suggests that risky decisions are resolved by running in parallel multiple comparisons between the separate attributes - possibly alongside an additional comparison of expected value. This result stands in contrast with the assumption of standard economic theory that choices require a unique comparison of expected values and suggests that at the cognitive level, decision processes might be more distributed than commonly assumed. Beyond our planned analyses, we also discovered that attribute salience affects people of different risk preference type in different ways: risk-averse participants seem to focus more on probability, except when monetary amount is particularly high; risk-neutral/seeking participants, in contrast, seem to focus more on monetary amount, except when probability is particularly low.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Conducta de Elección / Toma de Decisiones Límite: Humans Idioma: En Revista: Cogn Psychol Año: 2023 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Países Bajos
Texto completo
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XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Conducta de Elección / Toma de Decisiones Límite: Humans Idioma: En Revista: Cogn Psychol Año: 2023 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Países Bajos