Genetics and Moral Judgments
Author Information
Author(s): Abigail A. Marsh, Samantha L. Crowe, Henry H. Yu, Elena K. Gorodetsky, David Goldman, R. J. R. Blair
Primary Institution: Georgetown University
Hypothesis
5-HTTLPR genotype would interact with intentionality in respondents who generated moral judgments.
Conclusion
Inherited variants in a genetic polymorphism that influences serotonin neurotransmission affect utilitarian moral judgments.
Supporting Evidence
- Participants with the LL genotype found foreseen harm more acceptable than those with the S genotype.
- The study involved 150 moral dilemmas presented to participants.
- S-carriers showed greater reluctance to endorse actions resulting in unintentional harm.
Takeaway
Some people are more likely to say it's okay to hurt one person to save many others, and this can be influenced by their genes.
Methodology
Participants judged moral dilemmas involving foreseen and intentional harm while their genotypes were analyzed.
Potential Biases
Potential biases in self-reported moral judgments and participant selection.
Limitations
The study's findings may not generalize beyond the specific scenarios tested.
Participant Demographics
65 healthy volunteers (27 males, 38 females, average age 26.1 years).
Statistical Information
P-Value
p=0.02
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website