The Brain’s Building Blocks: Of Protons and Voxels

What’s in a brain? That which we call a voxel by any other name would sound far less confusing.

Imagine all of the atoms in your brain. Now imagine how these atoms might behave inside of a giant magnet. Fortunately, there’s a technique that makes this thought experiment possible. Structural magnetic resonance imaging (MRI) uses the behavior of basic building blocks—like atoms and their protons within—to form a truly interdisciplinary technique that spans physics, biology, and computer science in order to “photograph” the brain.

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