Brain preservation is a procedure that is performed in an effort to preserve the memories contained within the brain, with the hope of future revival. This includes the personality, emotions, and aspirations of the person, everything that makes them a unique individual. These memories might be recoverable in the distant future with high enough technology. Brain Preservation is not Suspended Animation.
There are two well-known techniques that scientists use to preserve tissue structure: aldehyde fixation and cryopreservation. We selectively use both of these powerful techniques together in order to maximize preservation quality. In a lab setting, good preservation quality has been achieved. We have Electron Micrographs demonstrating that some information can be preserved. Nevertheless, the specific protocols used on human patients under real-world conditions are poorly validated. One of our primary goals is to validate the human protocols.
It would probably be more than 100 years before we could reconstruct the memories in a preserved brain. Reconstruction would require very advanced Future Technology but no new physics. It's a complex engineering problem, but one that we are likely to eventually solve.
This is a very brief lay description of how we preserve a brain in an ideal situation.
-Death is pronounced.
-Tubes are inserted into the carotid arteries.
-Blood is washed out to halt metabolism and prevent clotting.
-Aldehyde chemicals are pumped in to stabilize molecules.
-In some cases we stop here.
-Cryoprotective Agent (CPA) is pumped in to prevent ice crystals.
-CT scan is performed to validate CPA concentration.
-Placed in permanent storage in liquid nitrogen at -196 °C.
We are actively providing services and simple storage. We are working hard on improving the protocol listed above. The biggest obstacle we face is the vast distance of the typical "patient" from our facility.
This scan demonstrates the complexity of neurons.
Memories are encoded in these structures.
There are 100,000,000,000 neurons,
each with about 2000 synapses (connections)