Non-gray circles and their connections represent 80, 70 and 60 percent (from top to bottom) of all outgoing traffic within the sampled section of a cortical region. Credit: Indiana University
70% of all info within cortical regions in the brain passes through only 20% of its regions’ neurons. These high-traffic “hub neurons” could play a role in understanding brain health since this sort of highly efficient network – in which a small number of neurons are more essential to brain function – is also more vulnerable to disruption. That’s because relatively small breakages can cause the whole system to “go down”...
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