Popular Science

THREE-DIMENSIONA­L

- —SKW

mazes can make us feel as if there’s no escape. Even in 2D, a confusing path poses a unique challenge to our internal GPS. If the route is circuitous enough, even on paper, our hippocampu­s, which regulates learning and memory, kicks into overdrive to make sense of the environmen­t. It uses visible cues—say a familiar switchback—to help us wend our way from one end to another.

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