Moral Foundations Theory (MFT) has attracted a lot of attention for its very intuitive explanation of where our gut reactions about morality come from, but grand claims about its implications might warrant a healthy dose of skepticism.
Moral Foundations Theory: The Pragmatic Validity of Moral Pluralism (Graham et al, 2012) - http://www-bcf.usc.edu/~jessegra/papers/GHKMIWD.inpress.MFT.AESP.pdf
Whats Wrong with Moral Foundations Theory, and How to get Moral Psychology Right, by Oliver Scott Curry - https://behavioralscientist.org/whats-wrong-with-moral-foundations-theory-and-how-to-get-moral-psychology-right/
Mapping morality with a compass: Testing the theory of morality-as-cooperation with a new questionnaire (Curry et al, 2018) - https://www.sciencedirect.com/science/article/pii/S0092656618303568
The Theory of Dyadic Morality: Reinventing Moral Judgment by Redefining Harm (Schein & Gray, 2017) - https://journals.sagepub.com/doi/10.1177/1088868317698288
Can Innate, Modular Foundations Explain Morality? Challenges for Haidt’s Moral Foundations Theory (Suhler & Churchland, 2011) - https://www.mitpressjournals.org/doi/10.1162/jocn.2011.21637
How Moral Foundations Theory Succeeded in Building on Sand: A Response to Suhler and Churchland (Haidt & Joseph, 2011) - https://www.researchgate.net/publication/49798262_How_Moral_Foundations_Theory_Succeeded_in_Building_on_Sand_A_Response_to_Suhler_and_Churchland
Is the mind really modular? (Prinz, 2004) - http://www.subcortex.com/PrinzModularity.pdf
Testing Measurement Invariance of the Moral Foundations Questionnaire Across 27 Countries (Iurino & Saucier, 2018) - https://journals.sagepub.com/doi/10.1177/1073191118817916
Moral psychology is relationship regulation: Moral motives for unity, hierarchy, equality, and proportionality (Rai et al, 2011) - https://psycnet.apa.org/doiLanding?doi=10.1037%2Fa0021867
Mapping the Moral Domain (Graham et al, 2011) - https://www.the-brights.net/morality/statement_1_studies/14.%20Graham,%20J.,%20Nosek,%20B.%20A.,%20Haidt,%20J.,%20Iyer,%20R.,%20Koleva,%20S.,%20&%20Ditto,%20P.%20H.%20(2011).%20Mapping%20the%20moral%20domain.%20Journal%20of%20Personality%20and%20Social%20Psychology,%20101(2),%20366-385.pdf
THUNK 88 - Hume’s Guillotine & Rational Morality - https://www.youtube.com/watch?v=UwkSA8nqmdI