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Effect of Emotion and Personality on Deviation from Purely Rational Decision-Making

Type of publication Peer-reviewed
Publikationsform Contribution to book (peer-reviewed)
Publication date 2013
Author Fiori Marina, Lintas Alessandra, Mesrobian Sarah, Villa Alessandro E.P.,
Project NeurEcA: Does working memory training affect decision making? A NeuroEconomic study of ADHD adults and healthy controls
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Contribution to book (peer-reviewed)

Book Decision Making and Imperfection
Editor , Guy Tatiana V.
Publisher Springer Berlin , Heidelberg
Page(s) 129 - 161
ISBN 978-3-642-36405-1
Title of proceedings Decision Making and Imperfection
DOI 10.1007/978-3-642-36406-8_5

Open Access

Type of Open Access Repository (Green Open Access)


Human decision-making has consistently demonstrated deviation from ”pure” rationality. Emotions are a primary driver of human actions and the current study investigates how perceived emotions and personality traits may affect decision-making during the Ultimatum Game (UG). We manipulated emotions by showing images with emotional connotation while participants decided how to split money with a second player. Event-related potentials (ERPs) from scalp electrodes were recorded during the whole decision-making process. We observed significant differences in the activity of central and frontal areas when participants offered money with respect to when they accepted or rejected an offer. We found that participants were more likely to offer a higher amount of money when making their decision in association with negative emotions. Furthermore, participants were more likely to accept offers when making their decision in association with positive emotions. Honest, conscientious, and introverted participants were more likely to accept offers. Our results suggest that factors others than a rational strategy may predict economic decision-making in the UG.