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Cardiac responses predict decisions: an investigation of the relation between orienting response and decisions in the ultimatum game.
Int J Psychophysiol. 2009 Oct; 74(1):74-9.IJ

Abstract

Emotion-based behaviors in humans cannot be fully explained by economic rationality. Particularly, in the ultimatum game, which incorporates conflict between self-interest and fairness, negative emotions evoked by an unfair offer seem to promote an economically irrational decision. In accordance with this suggestion, the previous studies have reported that physiological arousal is associated with rejecting unfair offers. In the present study, we investigated electrocardiogram and electrodermal activities in individuals which received fair, advantageously unfair, and disadvantageously unfair offers to specify the relations of the orienting and the defensive responses with these offers and with the decisions to accept and reject them. The results indicated that when an offer that would be rejected was presented, heart rate initially decelerated more than when an offer that would be accepted was presented. Additionally, there was a linear relationship between the deceleration and unfairness of offers. On the other hand, such different patterns were not seen in late cardiac acceleration or electrodermal response. The results suggest that because of perception of disadvantage and unpleasantness in a social context, the orienting response is evoked when an offer will be rejected. In addition, these results are discussed regarding the effect of the autonomic activity in decision-making.

Authors+Show Affiliations

Department of Psychology, Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan. osumi.takahiro@b.mbox.nagoya-u.ac.jpNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19646490

Citation

Osumi, Takahiro, and Hideki Ohira. "Cardiac Responses Predict Decisions: an Investigation of the Relation Between Orienting Response and Decisions in the Ultimatum Game." International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology, vol. 74, no. 1, 2009, pp. 74-9.
Osumi T, Ohira H. Cardiac responses predict decisions: an investigation of the relation between orienting response and decisions in the ultimatum game. Int J Psychophysiol. 2009;74(1):74-9.
Osumi, T., & Ohira, H. (2009). Cardiac responses predict decisions: an investigation of the relation between orienting response and decisions in the ultimatum game. International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology, 74(1), 74-9. https://doi.org/10.1016/j.ijpsycho.2009.07.007
Osumi T, Ohira H. Cardiac Responses Predict Decisions: an Investigation of the Relation Between Orienting Response and Decisions in the Ultimatum Game. Int J Psychophysiol. 2009;74(1):74-9. PubMed PMID: 19646490.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cardiac responses predict decisions: an investigation of the relation between orienting response and decisions in the ultimatum game. AU - Osumi,Takahiro, AU - Ohira,Hideki, Y1 - 2009/07/29/ PY - 2008/12/03/received PY - 2009/06/10/revised PY - 2009/07/21/accepted PY - 2009/8/4/entrez PY - 2009/8/4/pubmed PY - 2009/12/16/medline SP - 74 EP - 9 JF - International journal of psychophysiology : official journal of the International Organization of Psychophysiology JO - Int J Psychophysiol VL - 74 IS - 1 N2 - Emotion-based behaviors in humans cannot be fully explained by economic rationality. Particularly, in the ultimatum game, which incorporates conflict between self-interest and fairness, negative emotions evoked by an unfair offer seem to promote an economically irrational decision. In accordance with this suggestion, the previous studies have reported that physiological arousal is associated with rejecting unfair offers. In the present study, we investigated electrocardiogram and electrodermal activities in individuals which received fair, advantageously unfair, and disadvantageously unfair offers to specify the relations of the orienting and the defensive responses with these offers and with the decisions to accept and reject them. The results indicated that when an offer that would be rejected was presented, heart rate initially decelerated more than when an offer that would be accepted was presented. Additionally, there was a linear relationship between the deceleration and unfairness of offers. On the other hand, such different patterns were not seen in late cardiac acceleration or electrodermal response. The results suggest that because of perception of disadvantage and unpleasantness in a social context, the orienting response is evoked when an offer will be rejected. In addition, these results are discussed regarding the effect of the autonomic activity in decision-making. SN - 1872-7697 UR - https://www.unboundmedicine.com/medline/citation/19646490/Cardiac_responses_predict_decisions:_an_investigation_of_the_relation_between_orienting_response_and_decisions_in_the_ultimatum_game_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0167-8760(09)00186-X DB - PRIME DP - Unbound Medicine ER -