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Front Behav Neurosci. 2017 May 02;11:79. doi: 10.3389/fnbeh.2017.00079. eCollection 2017.

Exposure to Hedione Increases Reciprocity in Humans.

Frontiers in behavioral neuroscience

Sebastian Berger, Hanns Hatt, Axel Ockenfels

Affiliations

  1. Department of Organization, Department of Organization and Human Resource Management, University of BernBern, Switzerland.
  2. Department of Cell Physiology, Ruhr-University BochumBochum, Germany.
  3. Department of Economics, University of CologneCologne, Germany.

PMID: 28512400 PMCID: PMC5411439 DOI: 10.3389/fnbeh.2017.00079

Abstract

Cooperation among unrelated humans is frequently regarded as a defining feature in the evolutionary success of our species. Whereas, much research has addressed the strategic and cognitive mechanisms that underlie cooperation, investigations into chemosensory processes have received very limited research attention. To bridge that gap, we build on recent research that has identified the chemically synthesized odorant Hedione (HED) as a ligand for the putative human pheromone receptor (VN1R1) expressed in the olfactory mucosa, and hypothesize that exposure to HED may increase reciprocity. Applying behavioral economics paradigms, the present research shows that exposure to the ligand causes differentiated behavioral effects in reciprocal punishments (Study 1) as well as rewards (Study 2), two types of behaviors that are frequently regarded as essential for the development and maintenance of cooperation.

Keywords: altruistic punishment; chemosignals; cooperation; experimental games; hedione; reciprocity

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