[ExI] Cryonics punched cards and the brain
anders at aleph.se
Sun Jan 24 12:49:51 UTC 2016
Neat. Generally LTP is seen as the first of a longer cascade of fixation
of memories. Most research has been about cellular skeleton changes, but
perineuronal nets might also work.
It might actually be a good experiment for cryonics to see what the
process does to these nets. (I think John mixed up the perioneuronal net
(protein networks) with perineuronal space in the sleep reference. )
Incidentally, the Sejnowski lab had a nice result on the distribution of
Bartol, T. M. Jr. Bromer, C. Kinney, J. P. Chirillo, M. A. Bourne, J. N.
Harris, K. M. Sejnowski, T. J.
upper bound on the variability of synaptic plasticity, eLife, 4:e10778, 2015
They show that each synapse stores at most about 4.7 bits. While their
press material claims this is "an order of magnitude more" than previous
estimates, the actual estimate most people have been doing is about one
bit, so the difference isn't dramatic. But doing nanoconnectomics is an
Dr Anders Sandberg
Future of Humanity Institute
Oxford Martin School
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