SpainPink noise lifted recall 0.88 word pairs in 37 Alzheimer’s patients.
The 19% gain is small, and its clinical significance remains uncertain.
Pulses of 50 milliseconds fired at slow-wave peaks, a window only 200 milliseconds wide, helping the brain consolidate memories.
The study is not peer-reviewed, and several authors have commercial ties to Bitbrain or Elevvo, three on a pending patent.
Participants now use home devices to test whether the benefit lasts.
How each outlet framed it
- New Scientist
- frames pink-noise sleep stimulation as a possible memory aid for Alzheimer's through a 37-person lab study with Bitbrain's spindle-detection system
Sources: New Scientist