Opening the mind to moral persuasion

This week’s Nature has an article arguing that the recently popular field of moral psychology has neglected the role of public debate and personal reflection in the development of our morality.

The piece is by psychologist Paul Bloom, well known for his work on how we solve ethical problems – something which has become a hot topic in recent years as traditionally philosophical issues have been taken into the lab.

Indeed, many psychologists think that the reasoned arguments we make about why we have certain beliefs are mostly post-hoc justifications for gut reactions. As the social psychologist Jonathan Haidt puts it, although we like to think of ourselves as judges, reasoning through cases according to deeply held principles, in reality we are more like lawyers, making arguments for positions that have already been established. This implies we have little conscious control over our sense of right and wrong.

I predict that this theory of morality will be proved wrong in its wholesale rejection of reason. Emotional responses alone cannot explain one of the most interesting aspects of human nature: that morals evolve. The extent of the average person’s sympathies has grown substantially and continues to do so. Contemporary readers of Nature, for example, have different beliefs about the rights of women, racial minorities and homosexuals compared with readers in the late 1800s, and different intuitions about the morality of practices such as slavery, child labour and the abuse of animals for public entertainment. Rational deliberation and debate have played a large part in this development.

If you’re wondering what all the fuss is about, I recommend a 2008 article from Prospect magazine that gives a great introduction to the field.

Link to Nature article ‘How do morals change?’
Link to Prospect article ‘The emerging moral psychology’.

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