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Thursday, February 4, 2016

And what about zombies?

So many questions unasked here. Why would I want this? What are my memories without me? Just a jumble of increasingly out of date irrelevancies, I imagine. Who would be responsible for their preservation? What if a relative who finds them embarrassing or unprofitable decides to chuck them out? Will right to life enthusiasts consider this a new counterpoint to when life begins and protect my memories? Can they be probed as evidence in posthumous lawsuits? Bought and sold?

An article in Scientific American demonstrates why ethics is always chasing science, shouting, "Wait, wait...":

The soul is the pattern of information that represents you—your thoughts, memories and personality—your self. There is no scientific evidence that something like soul stuff exists beyond the brain's own hardwiring, so I was curious to visit the laboratories of 21st Century Medicine in Fontana, Calif., to see for myself an attempt to preserve a brain's connectome—the comprehensive diagram of all neural synaptic connections.

This medical research company specializes in the cryopreservation of human organs and tissues using cryoprotectants (antifreeze). In 2009, for example, the facility's chief research scientist Gregory M. Fahy published a paper in the peer-reviewed journal Organogenesis, documenting how his team successfully transplanted a rewarmed rabbit kidney after it had been cryoprotected and frozen to −135 degrees Celsius through the process of vitrification, “in which the liquids in a living system are converted into the glassy state at low temperatures.”

Can brains be so preserved? Fahy and his colleague Robert L. McIntyre are now developing techniques that they hope will win the Brain Preservation Technology Prize, the brainchild of neuroscientist Kenneth Hayworth (I'm on their advisory board as the advocatus diaboli). As I write this, the prize is currently valued at more than $106,000; the first 25 percent of the award will be for the complete preservation of the synaptic structure of a whole mouse brain, and the other 75 percent will go to the first team “to successfully preserve a whole large animal brain in a manner that could also be adopted for humans in a hospital or hospice setting immediately upon clinical death.”

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