Ttl;dr HNabout
← Friday, August 21, 2026
Watching TikTok and Instagram deactivates the cognitive control network: Study(rathbiotaclan.com)
350 points by Akasci 1 day ago | 120 comments
tl;dr: Summary not available
HN Discussion:
  • ↓fMRI studies like this are unreliable and often misinterpreted by headlines
  • ↓The effect isn't unique to TikTok; any immersive or escapist media does this
  • ↓Headlines oversimplify a complex social/psychological phenomenon
  • ↑Short-form content genuinely degrades attention and depth of thought
  • •Curious extension of the finding to other bite-sized content platforms