Connectome: How the Brain's Wiring Makes Us Who We Are
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NeocortexSlice of neocortex

Image of brain tissue taken from the neocortex. The bright surfaces are sections of extremely small blood vessels. The two dark spots are the cluttered genes of two different neurons. The first membrane around the dark spot is the cell’s nucleus, the second is the cell body. All small circles and other shapes in the image are sections of densely packed neural projections — axons and dendrites — that run more or less perpendicular to the imaging plane. In the image the tiny dark spots that appear within many of the projections are the neurons’ mitochondria, the cell’s energy factories. Their huge number reflects the fact that brain consumes a lot of energy: up to 30% of the body’s energy. The image width corresponds to approximately 0.016 inches (0.4 mm).

Photograph: Isabelle Spühler (ETH Zurich and University of Zurich) and Benjamin Bollmann

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Copyright © 2011 Sebastian Seung Design: Sunhee Choi and Ilbum Kwak Curation: Benjamin Bollmann




“the best lay book on brain science I've ever read.” -- Wall Street Journal by Daniel Levitin, author of This Is Your Brain on Music and The World in Six Songs.

EyeWire: Help map the connectome of the retina


A “citizen science” community to test the hypothesis that the uniqueness of a person, from memories to mental disorders, lies in his or her connectome.