Consciousness may depend not only on neural architecture, but on the living biochemical conditions that allow that architecture to function. A brain could, in principle, be preserved with its neurons intact, its synapses maintained, and its networks structurally recognizable. Yet a difficult question would remain: would such preservation be enough to preserve experience itself? This article explores that uncertainty through what I call the Biochemical Continuity Problem: the possibility that saving the structure of the brain may preserve the framework of a mind without preserving the dynamic chemical ecology through which consciousness emerges.
By Alexis O. Kaya, MD, PhD, Neuroscientist
