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Social memory, social stress, and economic behaviors


  • Taiki Takahashi

    (Hokkaido University)


Social memory plays a pivotal role in social behaviors, from mating behaviors to cooperative behaviors based on reciprocal altruism. More specifically, social/person recognition memory is supposed, by behavioral-economic and game-theoretic analysis, to be required for tit- for-tat like cooperative behaviors to evolve under the N-person iterated prisoner fs dilemma game condition. Meanwhile, humans are known to show a social stress response during face-to-face social interactions, which might affect economic behaviors. Furthermore, it is known that there are individual differences in a social stress response, which might be reflected in individual differences in various types of economic behaviors, partially via different capacities of social memory. In the present study, we investigated the acute effects of social stress- induced free cortisol (a stress hormone) elevation on hippocampus- dependent social memory by utilizing the Trier social stress test (consisting of a public speech and a mental arithmetic task).We also examine the correlation between an economic behavior-related personality trait (i.e., general trust scale) and social stress-induced cortisol elevations. We found that (1) social stress acutely impairs social memory during social interaction and (2) interpersonal trust reduces social stress response. Together, interpersonal trust may modulate economic behaviors via stress hormone fs action on social cognition- related brain regions.

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  • Taiki Takahashi, 2005. "Social memory, social stress, and economic behaviors," Experimental 0512007, EconWPA.
  • Handle: RePEc:wpa:wuwpex:0512007
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    References listed on IDEAS

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    Cited by:

    1. René Riedl & Harald Kindermann & Andreas Auinger & Andrija Javor, 2012. "Technostress from a Neurobiological Perspective," Business & Information Systems Engineering: The International Journal of WIRTSCHAFTSINFORMATIK, Springer;Gesellschaft für Informatik e.V. (GI), vol. 4(2), pages 61-69, April.

    More about this item


    neuroeconomics; hormone; trust; game theory; social cognition; stress; social memory;

    JEL classification:

    • C9 - Mathematical and Quantitative Methods - - Design of Experiments

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