Quartz, Steven R., and Terrence J. Sejnowski. 2002. Liars, Lovers, and Heroes: What the New Brain Science Reveals About How We Become Who We Are. New York: HarperCollins; Quartz and Sejnowski. 1997. “The neural basis of cognitive development: a constructivist manifesto.” Behavioral and Brain Sciences 20:537–56; discussion 556–96.