Home > Soul > 22. Die to Remember

 

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Figure 22a. The soul should carry life history for identity and judgment, consistent with the "life review" at near-death. [Source: Wikipedia]

Life review is a near-death experience, in which a person rapidly recalls much of his or her life history within a few seconds. It occurs mostly during cardiac arrest or drowning. This conscious perception suggests that, at near-death, the gravitational (GR) waves encoding life history have been generated and captured by the soul geon. From the religious point of view, a soul geon carrying life history is necessary for identifying an individual and for the last judgment.

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Figure 22b. Subregions of the hippocampus, including CA1, CA2, CA3 and dentate gyrus (DG). The autobiographical (episodic) memories could be stored in DG. [Source: Kino, 2015]

Scientifically, life review could result from activation of most DG granule cells (a type of neurons). In DG, the same population of granule cells is activated repeatedly in the same environment, but different environments or different tasks activate different populations of granule cells, suggesting that an episodic memory is stored in a particular set of DG neurons. This is supported by the demonstration that activation of a set of DG neurons is sufficient to retrieve a particular fear memory (Liu et al., 2012).

The granule cells in DG are continuously generated throughout life. The newborn population is active only for a short period of time. During the active period, the population may engage in memory acquisition and then become silent. The silent cells will no longer participate in memory acquisition, leaving the formation of new memory for another newborn population. As a result, more than 90% of granule cells in an adult DG are silent. Some of them can be activated (remembered) by specific recall cues. Many of them, such as the memories acquired during early childhood, could not be activated by any cues. That means, the memories encoded by these severely silenced cells are totally forgotten. The reports of life review suggest that, at near death, most granule cells in the dentate gyrus could be activated. Details are described in the book: Born to forget, Die to Remember.