Take a stand on your decisions, or take a sit: Posture does not affect risk preferences in an economic task

Megan K. O'Brien, Alaa A. Ahmed*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Physiological and emotional states can affect our decision-making processes, even when these states are seemingly insignificant to the decision at hand. We examined whether posture and postural threat affect decisions in a non-related economic domain. Healthy young adults made a series of choices between economic lotteries in various conditions, including changes in body posture (sitting vs. standing) and changes in elevation (ground level vs. atop a 0.8-meter-high platform). We compared three metrics between conditions to assess changes in risk-sensitivity: frequency of risky choices, and parameter fits of both utility and probability weighting parameters using cumulative prospect theory. We also measured skin conductance level to evaluate physiological response to the postural threat. Our results demonstrate that body posture does not significantly affect decision making. Secondly, despite increased skin conductance level, economic risk-sensitivity was unaffected by increased threat. Our findings indicate that economic choices are fairly robust to the physiological and emotional changes that result fromposture or postural threat.

Original languageEnglish (US)
Article numbere475
JournalPeerJ
Volume2014
Issue number1
DOIs
StatePublished - 2014
Externally publishedYes

Keywords

  • Decision-making
  • Economic lottery
  • Neuroeconomics
  • Posture
  • Prospect theory
  • Risk-sensitivity
  • Skin conductance
  • Threat

ASJC Scopus subject areas

  • Neuroscience(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

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