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Salivary alpha-amylase levels and rejection of unfair offers in the ultimatum game.
Neuro Endocrinol Lett. 2009; 30(5):643-6.NE

Abstract

OBJECTIVES

This study aimed to examine the role of emotions in rejection of unfair offers in an ultimatum game, which is of interest in neuroeconomics of fairness.

METHODS

Thirty-seven participants played a one-shot ultimatum game as responders and decided whether to accept or reject the unfair offers by the proposers. Salivary alpha-amylase (sAA) was assessed before and after the ultimatum game.

RESULTS

Forty-four percent of the participants rejected the unfair offers. While sAA levels of the participants who rejected the unfair offers increased between pre- and post-experiment, sAA levels of the participants who accepted the unfair offers remain unchanged.

CONCLUSIONS

Emotional stress response was observed when participants rejected the unfair offers. Our results indicated that rejection of the unfair offers is a reflection of emotional arousal associated with adrenergic activations.

Authors+Show Affiliations

Department of Behavioral Sciences, Hokkaido University, Sapporo, 060-0810, Japan. taikitakahashi@gmail.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20035253

Citation

Takagishi, Haruto, et al. "Salivary Alpha-amylase Levels and Rejection of Unfair Offers in the Ultimatum Game." Neuro Endocrinology Letters, vol. 30, no. 5, 2009, pp. 643-6.
Takagishi H, Fujii T, Kameshima S, et al. Salivary alpha-amylase levels and rejection of unfair offers in the ultimatum game. Neuro Endocrinol Lett. 2009;30(5):643-6.
Takagishi, H., Fujii, T., Kameshima, S., Koizumi, M., & Takahashi, T. (2009). Salivary alpha-amylase levels and rejection of unfair offers in the ultimatum game. Neuro Endocrinology Letters, 30(5), 643-6.
Takagishi H, et al. Salivary Alpha-amylase Levels and Rejection of Unfair Offers in the Ultimatum Game. Neuro Endocrinol Lett. 2009;30(5):643-6. PubMed PMID: 20035253.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Salivary alpha-amylase levels and rejection of unfair offers in the ultimatum game. AU - Takagishi,Haruto, AU - Fujii,Takayuki, AU - Kameshima,Shinya, AU - Koizumi,Michiko, AU - Takahashi,Taiki, PY - 2009/07/22/received PY - 2009/09/28/accepted PY - 2009/12/26/entrez PY - 2009/12/26/pubmed PY - 2010/4/1/medline SP - 643 EP - 6 JF - Neuro endocrinology letters JO - Neuro Endocrinol Lett VL - 30 IS - 5 N2 - OBJECTIVES: This study aimed to examine the role of emotions in rejection of unfair offers in an ultimatum game, which is of interest in neuroeconomics of fairness. METHODS: Thirty-seven participants played a one-shot ultimatum game as responders and decided whether to accept or reject the unfair offers by the proposers. Salivary alpha-amylase (sAA) was assessed before and after the ultimatum game. RESULTS: Forty-four percent of the participants rejected the unfair offers. While sAA levels of the participants who rejected the unfair offers increased between pre- and post-experiment, sAA levels of the participants who accepted the unfair offers remain unchanged. CONCLUSIONS: Emotional stress response was observed when participants rejected the unfair offers. Our results indicated that rejection of the unfair offers is a reflection of emotional arousal associated with adrenergic activations. SN - 0172-780X UR - https://www.unboundmedicine.com/medline/citation/20035253/Salivary_alpha_amylase_levels_and_rejection_of_unfair_offers_in_the_ultimatum_game_ DB - PRIME DP - Unbound Medicine ER -