We present an integration of rational moral reasoning with emotional intelligence. The moral reasoning system alone could not simulate the different human reactions to the Trolley dilemma and the Footbridge dilemma. However, the combined system can simulate these human moral decision making processes. The introduction of affect in rational ethics is important when robots com-municate with humans in a practical context that includes moral relations and decisions. Moreover, the combination of ratio and affect may be useful for ap-plications in which human moral decision making behavior is simulated, for ex-ample, when agent systems or robots provide healthcare support.

1. Moral Coppélia -
Combining Ratio with Affect in Ethical Reasoning
Matthijs A. Pontier1, 2 Guy A. M. Widdershoven 3, Johan F. Hoorn 1
1 VU University, Amsterdam, CAMeRA@VU 2 http://camera-vu.nl/matthijs/ m.a.pontier@vu.nl 3 VU University Medical Center
Abstract Method
We present an integration of rational moral We combined moral reasoning
reasoning with emotional intelligence. The and Silicon Coppélia to be able to
moral reasoning system alone could not make human-like moral decisions.
simulate the different human reactions to the
Trolley dilemma and the Footbridge
dilemma. However, the combined system Results
can simulate these human moral decision Moral Reasoning system alone
making processes. could not simulate difference
trolley dilemma and footbridge
Background dilemma.
Robots are increasingly being used and
Moral Reasoning system
increasingly operating autonomously
combined with Silicon Coppélia
 We should be able to rely on a certain
could simulate these human
level of ethical behavior from machines.
moral decision making processes
Particularly when machines interact with
humans, which they increasingly do, we need Discussion
to ensure that these machines do not harm The introduction of affect in
us or threaten our autonomy. rational ethics is important when
 Care robots require moral reasoning. robots communicate with
humans in a practical context that
Pontier and Hoorn (2012) developed a includes moral relations and
rational moral reasoning system that is decisions.
capable of balancing between conflicting
moral goals. Moreover, the combination of ratio
and affect may be useful for
Greene et al. (2001) find that moral dilemmas applications in which human
vary systematically in the extent to which they moral decision making
engage emotional processing and that behavior is simulated, for
these variations in emotional engagement example, when agent systems or
influence moral judgment. robots provide healthcare support.
Their study was inspired by the difference
between two variants of an ethical dilemma:
the trolley dilemma and the footbridge
dilemma.
Ratio:Moral Reasoning Affect: Silicon Coppelia
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