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Moral cognition and its neural constituents

Abstract

Identifying the neural mechanisms of moral cognition is especially difficult. In part, this is because moral cognition taps multiple cognitive sub-processes, being a highly distributed, whole-brain affair. The assumptions required to make progress in identifying the neural constituents of moral cognition might simplify morally salient stimuli to the point that they no longer activate the requisite neural architectures, but the right experiments can overcome this difficulty. The current evidence allows us to draw a tentative conclusion: the moral psychology required by virtue theory is the most neurobiologically plausible.

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Figure 1: A carnival of philosophers.
Figure 2: Five horizontal slices and one sagittal cross-section of a brain showing many morally relevant neural areas.
Figure 3: A 'moral state-space'.
Figure 4: A schematic of four subjects engaged in a hyperscanning experiment, interacting through an internet connection.

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References

  1. Hooker, B. Ideal Code, Real World: A Rule–Consequentialist Theory of Morality (Oxford Univ. Press, New York, 2000).

    Google Scholar 

  2. Hill, T. Human Welfare and Moral Worth: Kantian Perspectives (Oxford Univ. Press, New York, 2002).

    Book  Google Scholar 

  3. Broadie, S. Ethics With Aristotle (Oxford Univ. Press, New York, 1991).

    Google Scholar 

  4. Hursthouse, R. On Virtue Ethics (Oxford Univ. Press, New York, 1999).

    Google Scholar 

  5. Munzel, G. F. Kant's Conception of Moral Character: The 'Critical' Link of Morality, Anthropology, and Reflective Judgment (Univ. Chicago Press, Chicago, 1999).

    Google Scholar 

  6. De Waal, F. Good Natured: The Origins of Right and Wrong in Humans and Other Animals (Harvard Univ. Press, Cambridge, 1996).

    Google Scholar 

  7. Greene, J. D. & Haidt, J. How (and where) does moral judgment work? Trends Cogn. Sci. 6, 517–523 (2002).

    Article  Google Scholar 

  8. Casebeer, W. D. Natural Ethical Facts: Evolution, Connectionism, and Moral Cognition (MIT Press, Cambridge, Massachusetts, 2003).

    Book  Google Scholar 

  9. Hume, D. A Treatise of Human Nature (Clarendon, Oxford, 1739/1985).

    Google Scholar 

  10. Moore, G. E. Principa Ethica, Revised Edition (Cambridge Univ. Press, New York, 1994).

    Google Scholar 

  11. Greene, J. From neural 'is' to moral 'ought': what are the moral implications of neuroscientific moral psychology? Nature Rev. Neurosci. 4, 847–850 (2003).

    Article  Google Scholar 

  12. Saver, J. L. & Damasio, A. R. Preserved access and processing of social kowledge in a patient with acquired sociopathy due to ventromedial frontal damage. Neuropsychologia 29, 1241–1249 (1991).

    Article  CAS  Google Scholar 

  13. Bechara, A., Damasio, A. R., Damasio, H. & Anderson, S. W. Insensitivity to future consequences following damage to human prefrontal cortex. Cognition 50, 7–15 (1994).

    Article  CAS  Google Scholar 

  14. Damasio, A. R. Descartes' Error: Emotion, Reason, and the Human Brain (G. P. Putnam and Sons, New York, 1994).

    Google Scholar 

  15. Anderson, S. W., Bechara, A., Damasio, H., Tranel, D. & Damasio, A. R. Impairment of social and moral behavior related to early damage in human prefrontal cortex. Nature Neurosci. 2, 1032–1037 (1999).

    Article  CAS  Google Scholar 

  16. Bauer, L. O. & Hesselbrock, V. M. P300 decrements in teenagers with conduct problems: implications for substance abuse risk and brain development. Biol. Psychiatry 46, 263–272 (1999).

    Article  CAS  Google Scholar 

  17. Moll, J. et al. The neural correlates of moral sensitivity: a functional magnetic resonance imaging investigation of basic and moral emotions. J. Neurosci. 22, 2730–2736 (2002).

    Article  CAS  Google Scholar 

  18. Moll, J., de Oliveira-Souza, R., Bramati, I. E. & Grafman, J. Functional networks in emotional moral and nonmoral social judgments. Neuroimage 16, 696–703 (2002).

    Article  Google Scholar 

  19. Hamann, S. B., Ely, T. D., Hoffman, J. M. & Kilts, C. D. Ecstasy and agony: activation of the human amygdala in positive and negative emotion. Psychol. Sci. 13, 135–141 (2002).

    Article  Google Scholar 

  20. Adolphs, R., Tranel, D. & Damasio, A. R. The human amygdala in social judgment. Nature 393, 470–474 (1998).

    Article  CAS  Google Scholar 

  21. Montague, P. R. et al. Hyperscanning: simultaneous fMRI during linked social interactions. Neuroimage 16, 1159–1164 (2002).

    Article  Google Scholar 

  22. Van Veen, V. et al. Anterior cingulate cortex, conflict monitoring, and levels of processing. Neuroimage 14, 1302–1308 (2001).

    Article  CAS  Google Scholar 

  23. Van Veen, V. & Carter, C. S. The timing of action-monitoring processes in the anterior cingulate cortex. J. Cogn. Neurosci. 14, 593–602 (2002).

    Article  Google Scholar 

  24. Bunge, S. A. et al. Prefrontal regions involved in keeping information in and out of mind. Brain 124, 2074–2086 (2001).

    Article  CAS  Google Scholar 

  25. MacDonald, A. W. III, Cohen, J. D., Stenger, V. A. & Carter, C. S. Dissociating the role of the dorsolateral prefrontal and anterior cingulate cortex in cognitive control. Science 288, 1835–1838 (2000).

    Article  CAS  Google Scholar 

  26. Baron-Cohen, S. Mindblindness: An Essay on Autism and Theory of Mind (MIT Press, Cambridge, Massachusetts, 1995).

    Google Scholar 

  27. Rizzolatti, G., Fogassi, L. & Gallese, V. Neurophysiological mechanisms underlying the understanding and imitation of action. Nature Rev. Neurosci. 2, 661–670 (2001).

    Article  CAS  Google Scholar 

  28. Call, J. Chimpanzee social cognition. Trends Cogn. Sci. 5, 388–393 (2001).

    Article  CAS  Google Scholar 

  29. Adolphs, R. Cognitive neuroscience of human social behaviour. Nature Rev. Neurosci. 4, 165–178 (2003).

    Article  CAS  Google Scholar 

  30. Haidt, J. The emotional dog and its rational tail: a social intuitionist approach to moral judgment. Psychol. Rev. 108, 814–834 (2001).

    Article  CAS  Google Scholar 

  31. Greene, J. D. et al. An fMRI investigation of emotional engagement in moral judgment. Science 293, 2105–2108 (2001).

    Article  CAS  Google Scholar 

  32. Moll, J., de Oliveira-Souza, R. & Eslinger, P. J. Morals and the human brain: a working model. Neuroreport 14, 299–305 (2003).

    Article  Google Scholar 

  33. Fuster, J. M. Cortex and Mind: Unifying Cognition (Oxford Univ. Press, New York, 2002).

    Google Scholar 

  34. Churchland, P. S. Brain-wise: Studies in Neurophilosophy (MIT Press, Cambridge, Massachusetts, 2002).

    Google Scholar 

  35. Churchland, P. M. Towards a cognitive neurobiology of the moral virtues. Topoi 17, 83–96 (1998).

    Article  Google Scholar 

  36. Wallis, J. D., Anderson, K. C. & Miller, E. K. Single neurons in prefrontal cortex encode abstract rules. Nature 411, 953–956 (2001).

    Article  CAS  Google Scholar 

  37. Casebeer, W. D. & Churchland, P. S. The neural mechanisms of moral cognition: a multiple-aspect approach to moral judgment and decision-making. Biol. Philos. 18, 169–194 (2003).

    Article  Google Scholar 

  38. Moreno, J. D. Neuroethics: an agenda for neuroscience and society. Nature Rev. Neurosci. 4, 149–153 (2003).

    Article  CAS  Google Scholar 

  39. Cacioppo, J. T. et al. (eds) Foundations in Social Neuroscience (MIT Press, Cambridge, Massachusetts, 2002).

    Book  Google Scholar 

  40. Rachels, J. The Elements of Moral Philosophy 4th Edn (McGraw-Hill, Columbus, 2002).

    Google Scholar 

  41. Lapsley, D. Moral Psychology (West-view, Boulder, 1996).

    Google Scholar 

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Acknowledgements

I thank P. M. Churchland and P. S. Churchland for their close reading of the manuscript and invaluable advice about its structure and content. In addition, J. Greene's sceptical remarks were extremely helpful. J. Moll also provided useful preprints of his team's work in this area.

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FURTHER INFORMATION

MIT Encyclopedia of Cognitive Sciences

limbic system

moral psychology

social cognition

theory of mind

Online Bibliography of Cognitive Science and Ethics

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Casebeer, W. Moral cognition and its neural constituents. Nat Rev Neurosci 4, 840–846 (2003). https://doi.org/10.1038/nrn1223

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