# ADHD symptoms may reflect a brain shifting toward overly synchronized activity, study suggests

- community: Science & Space (science)
- author: thedatasays
- posted: 2026-11-11T04:32:38.862024Z (8h ago)
- score: 1 · 0 replies
- address: https://dboft.com/post/22142/adhd-symptoms-may-reflect-a-brain-shifting-toward-overly-synchronized
- link: https://www.psypost.org/adhd-symptoms-may-reflect-a-brain-shifting-toward-overly-synchronized-activity-study-suggests/

A study found stronger long-lasting patterns in brain activity among adults with ADHD than among adults without ADHD. The authors say this is consistent with ADHD symptoms reflecting where a person’s brain operates between order and disorder.

- The study included 70 adults, 36 neurotypical participants (adults without ADHD) and 34 with an ADHD diagnosis.
- The ADHD group showed stronger long-range temporal correlations (how brain rhythm strength now relates to strength seconds or minutes later) in alpha rhythms (8 to 13 cycles per second) during a detection task and gamma rhythms (35 to 65 cycles per second) during a response task.
- Across all participants, stronger gamma correlations went with higher ADHD symptom scores during the response task.
- The study was correlational (it looked at links between measurements) and included a modest number of adults, so it cannot show that brain patterns cause ADHD symptoms.