Thanks to Erica Tobolski for sending this one in: scientists have discovered that shed light on the "dissociative" experience many have on drugs including ketamine and PCP, the experience in which a person "feels separated from their own thoughts, feelings and body." The research team was not only able to associate this dissociation in 1–3-Hz rhythm in layer 5 neurons of the retrosplenial cortex, but were able to stimulate dissociation in both mice and humans! Here's the NPR article: https://www.npr.org/sections/health-shots/2020/09/16/913565163/scientists-discover-way-to-induce-altered-state-of-mind-without-drugs and here's the Nature publication: https://www.nature.com/articles/s41586-020-2731-9 How the brain stores auditory memories (see chapter 10) may involve the same areas of the brain explored in this study. See https://www.frontiersin.org/articles/10.3389/fnana.2010.00129/full for an overview.

New anthropological discoveries suggest that humans migrated to North America at least 10,000 years earlier than was generally expected: https://www.nature.com/articles/d41586-020-02137-3

Great discussion to consider before undertaking the book. There is a lot of pseudo-science on the internet about the subjects in this book. I've tried to document with rigorous academic studies throughout, and then related the work of others to my own career as an artist. This article helps to prepare one to enter the forest of ideas swirling around these fascinating subjects: https://theconversation.com/lets-scrap-the-neuromyths-no-you-arent-a-visual-or-auditory-person-141957