Guillaume Duchenne de Boulgne published his book Mécanisme de la Phys-
ionomie Humaine on the muscular control of human facial expression in
Paris in 1862. Few copies were produced, and it was soon out print and hard
to find. A translation into English by R. Andrew Cuthbertson now exists:
Duchenne de Boulogne (1990).
On the role of the vagus nerve in emotion and vagal tone: Porges (2011) and
Keltner (2009, pp. 240-243).
Oxytocin and vasopressin: Meyer-Lindenberg, Domes, Kirsch, and Heinrichs
(2011) and Ludwig and Leng (2006).
Discovery of reward circuitry in the brain: Olds and Milner (1954) and Olds
(1956).
A history of clinical psychopharmacology, including the discoveries of antide-
pressant and antipsychotic medications: Healy (2002).
“Cosmetic psychopharmacology” and Prozac: Kramer (1993).
“Nature, red in tooth and claw”: from the poem “In Memoriam A.H.H.” (1849)
by Alfred, Lord Tennyson (1809-1892). The poem honors Lord Tennyson’s
close friend Arthur Henry Hallam, who died suddenly at age of twenty-two
from a stroke.
“Will have been increased through natural selection”: Darwin (1871/1878, p.
107).
“Many a civilized man, or even boy, who never before risked his life for an-
other”: Darwin (1871/1878, p. 110).
Science of prosocial emotions: Keltner (2009) and Keltner, Kogan, Piff, and
Saturn (2014).
On mindfulness and medicine: Ludwig and Kabat-Zinn (2008). A practical
guide to mindfulness: Kabat-Zinn (2012). On the meaning of mindfulness
in Buddhism: Goldstein (2013).
On universal aspects of spiritual traditions: Dalai Lama (2011).
Chapter 22
Financial markets and out-of-control artificial intelligence: Dooling (2008).
Movies (and stories) about future artificial intelligence: I, Robot (2004 movie