
Dying Brain’s Gamma Burst: Real Signal, Unclear Meaning
A subset of dying patients and rodents show a transient, high-amplitude gamma-band surge on EEG after cardiac arrest, with unusually strong cross-regional brain coordination. While this activity is real and reproducible in observed cases, scientists caution that its relation to consciousness or near-death experiences is not proven, and the evidence is limited by small samples and methodological challenges.

