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Human intelligence arises from coordinated brain networks (Level A2) — an abstract image of a network of dots

Human intelligence arises from coordinated brain networksCEFR A2

28 Feb 2026

Level A2 – High beginner / Elementary
2 min
111 words

Researchers used neuroimaging to study how the brain is organized and how that organization links to intelligence. They tested the Network Neuroscience Theory and analyzed brain images and cognitive tests from two groups of adults: a public dataset and an independent study.

The theory views general intelligence as a pattern: many abilities tend to be positively linked. The study found that this pattern reflects differences in how efficiently brain networks are organized and coordinated across the whole brain.

Intelligence depends on integration and long-range connections, and some control regions act like hubs to recruit the right networks. The findings help explain changes in development, aging and sensitivity to brain injury.

Difficult words

  • neuroimagingmethods to make images of the brain
  • networkconnected groups of parts that work together
    networks
  • integrationjoining parts so they work as one
  • huban important central part that connects others
    hubs
  • recruitto bring in and use people or parts
  • efficientlyin a way that uses time and energy well
  • independentseparate and not part of another group

Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.

Discussion questions

  • Have you noticed changes in memory or thinking with age?
  • Can you give an example of two abilities that work together?

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