In the course of the study, scientists used electroencephalograms of patients who were under medical observation at the time of their death. The results showed that in some of them, gamma waves—a type of brain activity associated with conscious thought and perception—were activated just before they passed away.
The most noticeable changes were recorded in the areas of the brain responsible for consciousness and memory. This observation aligns with accounts from people who have experienced clinical death, who often share impressions of "replaying" events from their lives or meeting with deceased loved ones.
The authors of the study note that such bursts of activity are not observed in everyone, and it remains unclear what exactly influences them. Nevertheless, the presence of these bursts indicates that the brain does not shut down instantly; rather, it may enter a state of active functioning for a short time.
Researchers believe that if a person truly experiences certain events during the dying process, it occurs at the moment of the activity burst, which coincides with descriptions from those who have experienced clinical death.
