Vinayak Hegde

“Over the past few millennia, we’ve co-opted brain circuits already in use to scan the world for food or danger, in a sense fooling ourselves into paying attention to the inert little symbols on the page. Brain scans have shown that areas once used exclusively for scanning the horizon—for recognizing animal tracks, ripe berries, and snakes in trees—became the region that allowed us to quickly recognize letters and words. We’ve trained our brain to read by modifying the structures we once used to sense danger and movement and odd shapes in the grass. Dehaene and other researchers have found that most of our letter shapes are actually transpositions of key shapes from nature to which we’ve learned pay attention: a “Y” resembles the crook of tree branches, a “T” (on its side) the shape formed whenever one object masks another—imagine a telephone pole breaking the line of the horizon. “T-detector” neurons help us determine which object is in front, Dehaene wrote. “We did not invent most of our letter shapes: they lay dormant in our brain for millions of years, and were merely rediscovered when our species invented writing and the alphabet.”
― Greg Toppo, The Game Believes in You: How Digital Play Can Make Our Kids Smarter