Scientists have developed a tool they say is able to briefly restore circulation and some brain activity — but not consciousness or global electric functions — in the brains of pigs 4 hours after death. Very Colorful!
*Why it matters
[axios.com]
My read, it slows neural activity allowing other functions to go on longer. Probably useful just after brain injury.
Also a good step towards zombies! Yay! Apply to living human, decreased brain activity but other functions can go longer.