Dr. Stuart Hameroff, an anesthesiologist and professor at the University of Arizona. Has been studying the mysteries of consciousness for years. In a recent interview with Project Unity, he discussed a study where researchers used EEG (electroencephalogram) sensors to monitor the brain activity of a clinically dead patient. What they found was interesting, a sudden burst of gamma synchrony, a type of brain wave associated with awareness and perception. This occurred even after the patient had no blood pressure or heart rate.
“They saw everything go away, and then, suddenly, there was this activity when there was no blood pressure, no heart rate,” Hameroff explained. “So that could be the near-death experience, or it could be the soul leaving the body, perhaps.”
This burst of energy, lasting anywhere from 30 to 90 seconds, sparked intense debate among scientists. Could this be the last glimpse of consciousness, or is it something more supernatural?
Is It the Last Gasp of Neurons, or Something Deeper?

Skeptics have argued that this post-death brain activity is simply the “last gasp” of neurons firing off as they run out of oxygen. Others dismiss it as a misconception or just a technical glitch. However, Hameroff believes there’s more to it. According to him, consciousness may function at a more basic and profound level than other brain processes. Requiring less energy to sustain itself.
“The point is, it shows that consciousness is, probably, a very low-energy process,” he said. “It’s the last thing to go during the dying process.”
In 2023, a study published in Proceedings of the National Academy of Sciences (PNAS) found that in two patients taken off life support, researchers observed a spike in gamma wave activity within the brain’s hot zone, an area linked to conscious experience. According to lead author Dr. Jimo Borjigin of the University of Michigan, these results point to a last burst of coordinated brain activity before total brain shutdown.
This challenges the view that consciousness is a byproduct of neural activity. It suggests that it might continue even when the body shuts down, existing apart from the physical functions of the brain.
A Reproducible Phenomenon: What Does It Mean?
There have been repeated instances of this unexplained spike in brain activity. According to Hameroff, it has been noted that around half of the 67 instances in which brain-dead patients are monitored using EEGs. Dr. Lakhmir Chawla, who’s a pioneer in this field. First documented the phenomenon in a study where anesthesiologists used EEGs to ensure no brain activity remained in organ donors before harvesting their organs.
“This has been a fairly reproducible event,” Hameroff said. “Not 100%, but about 50% of patients show this when you measure it.”
The consistency of this phenomenon raises important questions. If this burst of energy isn’t just random neuronal activity, what could it be? Could it be a glimpse into what happens during the transition from life to death, or even beyond?
Psychedelics, Quantum Consciousness, and the Brain

To carry on investigating the nature of consciousness, Dr. Robin Carhart-Harris, a researcher who studies the effects of psychedelics on the brain, conducted a study that Hameroff cited. He mentions that in the study, volunteers were given psilocybin, which is the psychoactive compound found in magic mushrooms, and monitored using MRI and EEG machines. Despite the volunteers’ reports of acute mental experiences and vivid hallucinations, their brain scans revealed virtually no activity. “The MRI was cold and dark as if they were comatose,” Hameroff said. “They were at a loss to explain this.”
This disconnect between their personal reality experience and what we can see in their brain activity led Hameroff to assume that consciousness might operate at a “quantum level” within the brain. Quantum-level brain activity is a theory suggesting that certain brain functions occur on a microscopic scale within neurons. This is beyond the reach of traditional neural pathways.
What Does This Mean for the Soul?
It suggests that there might be more to our existence than the physical body if consciousness can exist unassisted by the brain, even for a brief moment after death. To add to this, this doesn’t necessarily mean that the soul is a religious or spiritual thing. Instead, it might be a natural phenomenon, a quantum process that science is only beginning to understand.

One thing is certain as researchers work to unravel the secrets of the brain, the adventure does not finish with death. There’s still so much to learn about what happens when we pass away and what it means to be alive. We must acknowledge that the existence of the soul may ultimately remain an open subject. But as research like Hameroff’s pushes the boundaries of science and what we come to understand, we’re getting closer to understanding the deep connection between life, death, and the mysterious force we call consciousness.
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