Dutch cardiologist Pim van Lommel in his book Consciousness Beyond Life: The Science of Near-Death Experience presents medical research verifying that: “consciousness, with memories and occasional perception, can be experienced during a period of unconsciousness ― that is, during a period when the brain shows no measurable activity and all brain functions, such as body reflexes, brain stem reflexes, and respiration, have ceased. It appears that at such a moment a lucid consciousness can be experienced independently of the brain and body."
“Many argue,” he adds, “that the loss of blood flow and a flat EEG do not exclude some activity somewhere in the brain because an EEG primarily registers the electrical activity of the cerebral cortex. In my view this argument misses the point. The issue is not whether there is some immeasurable activity somewhere but whether there is any sign of those specific forms of brain activity that, according to current neuroscience, are considered essential to experiencing consciousness. And there is no sign whatsoever of those specific forms of brain activity in the EEGs of cardiac arrest patients.”
Van Lommel reports that this “endless consciousness” during a NDE includes “nonlocal aspects of interconnectedness, such as memories from earliest childhood up until the crisis that caused the NDE and sometimes even visions of the future. It offers the chance of communication with the thoughts and feelings of people who were involved in past events or with the consciousness of deceased friends and relatives. This experience of consciousness can be coupled with a sense of unconditional love and acceptance while people can also have contact with a form of ultimate and universal knowledge and wisdom.”
To explain NDEs, he turns to quantum physics and endorses “the not yet commonly accepted interpretation that consciousness determines if and how we experience reality.” In this view “consciousness is nonlocal and the origin or foundation of everything: all matter, or physical reality, is shaped by nonlocal consciousness.” If this is the case, van Lommel concludes, “Our endless consciousness predates our birth and our body, and will survive death independently of our body in a nonlocal space where time and distance play no role.”
Pim van Lommel, Consciousness Beyond Life: The Science of the Near-Death Experience (HarperCollins, 2010), 161, 165, 247, 223, 228, and 307.