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Gene in mice reduces background activity and improves focus (Level A1) — white and brown rabbit on white background

Gene in mice reduces background activity and improves focusCEFR A1

24 Dec 2025

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Adapted from Rockefeller University, Futurity • CC BY 4.0

Photo by Kanashi, Unsplash

Level A1 – Beginner
2 min
77 words
  • Scientists study how attention works in mice today.
  • The brain filters useful signals from noise.
  • The team found one gene that lowers brain noise.
  • Mice with less of this gene focus more.
  • Scientists changed the gene in young mice.
  • Young mice became faster, more accurate, less distracted.
  • The same change in adult mice did nothing.
  • This work may lead to calmer brain treatments.
  • The study gives new ideas about attention.
  • Scientists will research this gene more later.

Difficult words

  • attention — the act of watching or listening carefully
  • filter — remove or block unwanted parts or information
    filters
  • signal — a message or important information for the brain
    signals
  • noise — unwanted or random activity or sound
  • gene — something that can lower brain noise in mice

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

Discussion questions

  • Do you get distracted easily?
  • What helps you focus?
  • Do you like calm places to work?

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