From Cryonics Wiki

Neuropreservation is the cryopreservation of cephalon (head) or brain instead of whole body. Organizations that conduct neuropreservations include the Alcor Life Extension Foundation, Cryonics Germany, KrioRus, the Neural Archives Foundation, and Oregon Cryonics.

The first neuropreserved person is Fred Chamberlain Jr., cryopreserved by Alcor in July 1976.