The Tell-Tale Brain is an ambitious, yet humble attempt to find the self. V. S. Ramachandran is a neuroscientist with considerable psychology experience who is well equipped to take on, as the subtitle puts it, A Neuroscientist ‘s Quest for What Makes Us Human. The book will take you to some very strange places. And although he’s a scientist, Ramachandran keeps an admirably open mind. Right at the start he notes that he sees no reason for using “merely”s and “only”s when discussing brains and their realities. In fact, he knows that scientists aren’t qualified to answer the question of whether there is a god. Having grown up Hindu, he used to pray to many gods. A true scientist has no need to belittle beliefs. Belief, as Ramachandran demonstrates, is far more complex than most pundits would suggest. This is based on his close study of the brain and those to whom it has been less than kind.

Already in the first several pages it becomes clear that Ramachandran finds religion a useful trope. It illustrates something we all know. That doesn’t mean he (or you) has (have) to accept it, but we all recognize it. Studying how the brain works, in this book, means looking at patients with various disorders, most of which have tongue-twisting names, that are inherently fascinating. Phantom limbs, people who see the colors of numbers or feel the emotions of fabrics, or who can’t recognize their own mothers—all of these things really happen in the brains of intelligent people. For them these are reality. For Ramachandran, they can frequently be chased down to a neurological cause. And sometimes people even really think they’re God. One of the treasures of this book is to experience the non-normativity of western culture. The use of Indian art and religion as illustrations of what humans believe is refreshing.

Anyone who fears the loss of self take warning; we may not be who we think we are. Brain studies show that, in certain circumstances, brains can contain more than one self. Memories can be fabricated and the continuity that we call our life stories may well contain a healthy dose of fiction. Experiments on brains can change who we think we are. Descartes would, perhaps, go insane. Ramachandran doesn’t claim to have figured out the self, or consciousness. He may have ruled out some options, though. At the end of the book, however, he reintroduces the concept with which he started: science and religion. Quoting Darwin he shows that the main mind behind evolutionary theory refused to make an absolute declaration about the divine. Humility, it seems, may be just as effective in making converts as a Bible in hand. And to figure that out will take some brain power.