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How serotonin shapes moral judgment and behavior.

Jenifer Z Siegel1, Molly J Crockett

  • 1Wellcome Trust Centre for Neuroimaging, University College London, London, United Kingdom.

Annals of the New York Academy of Sciences
|January 29, 2015
PubMed
Summary
This summary is machine-generated.

Altering brain chemistry, particularly serotonin, can influence moral judgment and prosocial behavior. This research explores how serotonin enhances aversion to harm and increases the value placed on others

Keywords:
fairnessharm aversionmoral judgmentserotonin

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Area of Science:

  • Neuroscience
  • Social Psychology
  • Neurobiology

Background:

  • Hormones and brain chemicals significantly influence social behavior.
  • Potential for pharmacological manipulation of ethical values exists.
  • Serotonin's role in harm aversion and fairness is a key focus.

Purpose of the Study:

  • To review studies on how brain chemistry alters moral judgment and behavior.
  • To explore serotonin's mechanisms in increasing aversion to harm.
  • To present a model for serotonin's influence on social preferences and value computation.

Main Methods:

  • Literature review of neuroscientific studies.
  • Synthesis of previous findings on serotonin and social behavior.
  • Development of a process model for serotonin's effects.

Main Results:

  • Altering brain chemistry can modify moral judgment and behavior.
  • Serotonin appears to increase aversion to harming others.
  • Serotonin shifts social preferences, enhancing the perceived value of others' outcomes.

Conclusions:

  • Serotonin influences social behavior by positively shifting social preferences.
  • The proposed model explains existing findings on serotonin and prosocial behavior.
  • New predictions are made regarding serotonin's role in neural value computation.