Frozen human brain tissue brought back to life in major breakthrough

If you removed a cube of brain from one person and inserted it into a suitable void in another, or swapped them out.. what do you think would happen before necrosis and rejection set in?

I doubt any concrete or even diffuse states analogous to "somebody else's memory" would swap because.. that's not how it works.

Whole brain.. different story.

Function- specific structure (amygdala) .. dunno

Lovelock was quick-freezing and microwave-thawing entire living hamsters in the mid 1900s. If it works on a whole hamster brain, it probably works in a sliver of human brain tissue. https://www.youtube.com/watch?v=2tdiKTSdE9Y