My research addresses questions at the intersection of ethics and cognitive science, in an effort to understand the development, breakdown, and improvement of moral knowledge and virtue.

I focus both on contemporary moral issues (e.g., animal welfare, moral enhancement, charitable giving) and more ordinary interactions with others (e.g., dishonesty, egoism). Based on an adequate understanding of the sources of our beliefs and decisions (our moral psychology and neurobiology), we can assess whether we’re justified in holding particular moral views and properly motivated to do what’s right. Against a rising pessimism, I’ve argued that moral thought and action are ultimately rational enterprises. (My views are thus largely “rationalist” and “non-skeptical.”) Nevertheless, there is certainly room for improvement, and my work also attempts to understand social change and moral progress. How, in particular, can the sciences of the mind help us to become more virtuous and better equipped to tackle societal challenges of the 21st century, such as factory farming, climate change, and mental illness?


Neuroethics: Agency in the Age of Brain Science (Oxford University Press, under contract)

Agency in Mental Disorder: Philosophical Dimensions, co-edited w/Matt King (Oxford University Press, 2022)

Regard for Reason in the Moral Mind (Oxford University Press, 2018)

Reviewed in Australasian Journal of Philosophy,  Behavioral & Brain Sciences  (symposium), CHOICE, Ethics, Heythrop JournalMetapsychologyand Utilitas

Journal Articles

Note: Article titles link to penultimate drafts (or self-archived finals if open access); journal titles link to final version if available. Both links contain abstracts.

Forthcoming: May, J. & Kumar, V. “Harnessing Moral Psychology to Reduce Meat Consumption.” Journal of the American Philosophical Association. [5 min video summary]

Forthcoming: May, J.Moral Rationalism on the Brain.” Mind & Language. [Best Paper Prize in Philosophy, Italian Society for Neuroethics | video abstract | 10 min talk]

2021: May, J.Bias in Science: Natural and Social.” Synthese 199: 3345–3366. [video abstract | blog post ]

2020: Earp, B. et al. “Experimental Philosophical Bioethics.” AJOB Empirical Bioethics 11(1): 30-33.

2019: May, J.Précis of Regard for Reason in the Moral Mind.” Behavioral & Brain Sciences 42(e146): 1-60. [Target discussion to appear with 21 commentaries and my replies.]

2018: King, M. & May, J. “Moral Responsibility and Mental Illness: A Call for Nuance.”  Neuroethics 11(1): 11-22. [Featured on Bookforum]

2017: Feltz, A. & May, J. “The Means/Side-Effect Distinction in Moral Cognition: A Meta-Analysis.” Cognition 166: 314–327.

2016: May, J. Emotional Reactions to Human Reproductive Cloning.” Journal of Medical Ethics 42(1): 26-30. [Selected as Editor’s Choice with a discussion piece | featured on Bookforum | blog discussion | data]

2014: May, J. “Does Disgust Influence Moral Judgment?” Australasian Journal of Philosophy 92(1): 125–141. [Featured on Bookforum]

2014: May, J. “On the Very Concept of Free Will” Synthese 191(12): 2849-2866. [Blog discussion | featured on Bookforum | datareplication]

2014: May, J.  “Moral Judgment and Deontology: Empirical Developments.” Philosophy Compass 9(11): 745-755. [Featured on Bookforum]

2014: Shepard, J. & May, J. “Does Belief in Dualism Protect against Maladaptive Psycho-social Responses to Deep Brain Stimulation?American Journal of Bioethics Neuroscience 5(4): 40–42.

2014: Allen, T. & May, J. “Does Opacity Undermine Privileged Access?International Journal of Philosophical Studies 22(4): 617–629. [Critical notice]

2013: May, J. “Skeptical Hypotheses and Moral Skepticism” Canadian Journal of Philosophy 43(3): 341–359. [Featured on Bookforum; reply in JESP]

2013: May, J. “Because I Believe It’s the Right Thing to Do” Ethical Theory & Moral Practice 16(4): 791–808.

2012: May, J. & Holton, R. “What in the World Is Weakness of Will?” Philosophical Studies 157(3): 341–360. [Blog discussion | datareplication]

2011: May, J. “Egoism, Empathy, and Self-Other Merging” Southern Journal of Philosophy 49(S1): 25–39, Spindel Supplement: Empathy & Ethics, R. Debes (ed.). [Emerging Scholar Prize Essay; other contributors include: S. Darwall, J. Deigh, P. Goldie, J. Prinz, M. Slote.]

2011: May, J. “Relational Desires and Empirical Evidence against Psychological Egoism” European Journal of Philosophy 19(1): 39–58.

2010: May, J., Sinnott-Armstrong, W., Hull, J. G. & Zimmerman, A. “Practical Interests, Relevant Alternatives, & Knowledge Attributions” Review of Philosophy & Psychology 1(2): 265–273, Special Issue ed. by E. Machery, T. Lombrozo, & J. Knobe. [Blog discussion | data | replications: 1, 2, 3]

Book Chapters

Forthcoming: May, J., Workman, C., Haas, J. & Han, H. “The Neuroscience of Moral Judgment: Empirical and Philosophical Developments.” In Neuroscience & Philosophy, eds. F. de Brigard & W. Sinnott-Armstrong. MIT Press.

2019: Kumar, V. & May, J.How to Debunk Moral Beliefs.” In Methodology and Moral Philosophy, eds. Jussi Suikkanen & Antti Kauppinen. Routledge, pp. 25-48. [review]

2018: May, J.The Limits of Emotion in Moral Judgment.” In The Many Moral Rationalisms, eds. K. Jones & F. Schroeter, Oxford University Press, pp. 286-306. [review]

2018: May, J.The Limits of Appealing to Disgust.” In The Moral Psychology of Disgust, eds.  Nina Strohminger & Victor Kumar, Rowman & Littlefield, pp. 151-170.

2017: May, J. “Getting Less Cynical about Virtue” (commentary on C. D. Batson). In Moral Psychology, Vol. 5: Virtue & Character, W. Sinnott-Armstrong & C. Miller (eds.), MIT Press, pp. 45-52.

2016: May, J. “Repugnance as Performance Error: The Role of Disgust in Bioethical Intuitions.” In The Ethics of Human Enhancement: Understanding the Debate, S. Clarke, et al. (eds.), Oxford University Press, pp. 43-57. [review]

Reference Works

2018: May, J. & Kumar, V. “Moral Reasoning and Emotion.” The Routledge Handbook of Moral Epistemology, eds. K. Jones, M. Timmons, & A. Zimmerman, Routledge, pp. 139-156.

2017: May, J. “Empathy and Intersubjectivity.” The Routledge Handbook of Philosophy of Empathy, Heidi Maibom (ed.), Routledge, pp. 169-179. [The volume won CHOICE’s Outstanding Academic Title of the Year 2018.]

2017: May, J. “Moral Psychology, Empirical Work In.” Routledge Encyclopedia of Philosophy. [Updated and expanded on 2012 version.]

2011: May, J. “Psychological Egoism.” Internet Encyclopedia of Philosophy.

Book Reviews & Commentaries

2018: “A Limited Skeptical Threat”, commentary on John Doris’s Talking to Our Selves, Behavioral & Brain Sciences, Vol. 41, e52: 35-6.

2016: Review of Bound: Essays on Free Will & Responsibility (2015, OUP) by Shaun Nichols, Australasian Journal of Philosophy, Vol. 9, No. 2: 416-17. [More detailed thoughts in this blog post.]

2014: Review of Just Babies: The Origins of Good and Evil by Paul Bloom (2013, Crown), Metapsychology, Vol. 18, No. 33.

2010: Review of Experimental Philosophy ed. by Knobe & Nichols (2008, OUP), Philosophical Psychology, Vol. 23, No. 5, pp. 711-715.

2009: Review of Willing, Wanting, Waiting by Richard Holton (2009, OUP), Metapsychology, Vol. 13, No. 23.

2009: Review of A Very Bad Wizard: Morality behind the Curtain by Tamler Sommers (2009, McSweeney’s), Metapsychology, Vol. 13, No. 53. [Featured on Arts & Letters Daily.]

In Progress

(If not already provided, drafts may be available upon request.)

A book monograph on neuroethics (in progress)

A paper on how arguments influence charitable giving (R&R)

A paper on how moral exemplars motivate emulation (R&R)

A public philosophy piece on meat consumption (drafted)

A handbook chapter on reason, emotion, and moral progress (early stages)