Terrence J. Sejnowski

Steven R. Quartz

Two neuroscientists share a cutting-edge thesis on how biology, culture, and the environment contribute to our impulses, behaviors, and selves.

This book combines cutting-edge findings in neuroscience with examples from history and the headlines to introduce the new science of cultural biology, born of advances in brain imaging, computer modeling, and genetics. Doctors Quartz and Sejnowski show how both our noblest and darkest traits are rooted in brain systems so ancient that we share them with insects. They then demystify the dynamic engagement between brain and world that makes us something far beyond the sum of our parts.

The authors show how our humanity unfolds through increasingly complex interactions between brain and world. They investigate shaping forces both ancient and contemporary, from thousands of years of climate change to the tragic events of September 11, 2001. And they offer intriguing answers to some of our most enduring questions, including why we live together, love, kill—and sometimes lay down our lives for others.

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