I've been trying-and-failing to turn up any commentary by neuroscientists on cryonics. Specifically, commentary that goes into any depth at all.
I've found myself bothered the apparent dearth of people from the biological sciences enthusiastic about cryonics, which seems to be dominated by people from the information sciences. Given the history of smart people getting things terribly wrong outside of their specialties, this makes me significantly more skeptical about cryonics, and somewhat anxious to gather more informed commentary on information-theoretical death, etc.
Somewhat positive:
Ken Hayworth: http://www.brainpreservation.org/
Rafal Smigrodzki: http://tech.groups.yahoo.com/group/New_Cryonet/message/2522
Mike Darwin: http://chronopause.com/
It is critically important, especially for the engineers, information technology, and computer scientists who are reading this to understand that the brain is not a computer, but rather, it is a massive, 3-dimensional hard-wired circuit.
Aubrey de Grey: http://www.evidencebasedcryonics.org/tag/aubrey-de-grey/
Ravin Jain: http://www.alcor.org/AboutAlcor/meetdirectors.html#ravin
Lu...
If it's worth saying, but not worth its own post, even in Discussion, it goes here.