Some thirty years ago, with the launch in 1990 by the Bush administration of the “Decade of the Brain,” neurocentrism took hold in the Western world — America, Japan, and Europe. It held on well into the aughts. Neurocentrism is the belief that the brain is the seat of the mind, that they are in some sense the same entity, and that therefore one can understand mental and psychic life by understanding the brain, which is often dubbed the most complex object in the universe, with its estimated eighty-six billion neurons and hundred trillion or so synaptic connections. As a consequence of discussions about the brain already underway in the 1980s between upper-level American science agencies, councils, and associations, the government awarded generous funding for research in neuroscience, psychology, and neurology. It aimed in large part to address the staggering cost of neurodegenerative diseases, which was (correctly, as it turned out) predicted to increase massively over the next decades, as well as to study the aetiology and the effects of neurological disorders and accidents.