 Recent experimental work, employing both survey instruments and brain imaging technologies, has allowed philosophers to approach questions about the psychological basis of moral reasoning from novel angles. The initial brain data seems to show that individuals with damage to the pre-frontal lobes tend to reason in more straightforwardly consequentialist fashion than those without such damage (Koenigs et al. 2007). Some theorists take this finding as tending to confirm that fully competent human moral reasoning goes beyond a simple weighing of pros and cons to include assessment of moral constraints (e.g., Wellman &amp; Miller 2008, Young &amp; Saxe 2008). Others, however, have argued that the emotional responses of the prefrontal lobes interfere with the more sober and sound, consequentialist-style reasoning of the other parts of the brain (e.g. Greene 2014). The survey data reveals or confirms, among other things, interesting, normatively loaded asymmetries in our attribution of such concepts as responsibility and causality (Knobe 2006). It also reveals that many of moral theory’s most subtle distinctions, such as the distinction between an intended means and a foreseen side-effect, are deeply built into our psychologies, being present cross-culturally and in young children, in a way that suggests to some the possibility of an innate “moral grammar” (Mikhail 2011). 