How come that you refuse this so confidently?

Here just a few works from that wide field:

• Enhanced Interplay of Neuronal Coherence and Coupling in the Dying Human Brain
• AWARE—AWAreness during REsuscitation—A prospective study
• Neurochemical models of near-death experiences: A large-scale study based on the semantic similarity of written reports
• Surge of neurophysiological coupling and connectivity of gamma oscillations in the dying human brain
• Surges of Electroencephalogram Activity at the Time of Death: A Case Series
• Time to loss of brain function and activity during circulatory arrest