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It is a long-standing philosophical conundrum: is consciousness somehow separate from the physical world or merely an illusion conjured up by our complex brains? It took his father's stroke to convince Daniel Bor which side he was on.
Bor, who had previously been considering a PhD in the philosophy of mind, opted instead for one in the neuroscience of consciousness. To see his father "robbed of his identity because a small clot on his brain had potently wounded his consciousness" hammered home all too well that the mind really is the output of nothing more than a small sac of jelly.
But what an amazing sac of jelly it is. In The Ravenous Brain, Bor takes us on a tour of the fascinating world of consciousness research. He engages in "technological telepathy", taking part in a conversation where he communicates his thoughts using only an MRI brain scanner.
He also introduces us to conjoined twins with linked brains, an autistic synaesthete who can memorise the digits of pi up to 22,514 decimal places and chimpanzees that practise sophisticated mind games.
As well as providing a primer in the most popular current theories of consciousness, Bor introduces one of his own. This is that consciousness evolved to facilitate information processing, and thus learning and innovation.
One of Bor's research areas is a type of information processing called chunking. We can normally hold only a few things in our working memory at one time, but if we chunk items into groups so that the group represents all the items it contains, we can manipulate more and more concepts simultaneously. MRI scans show that the prefrontal-parietal network, a broad area of the cortex that is sometimes seen as the home of consciousness, lights up particularly when we do tasks that involve such chunking.
If that seems speculative, it's nothing compared with the final chapter, where Bor interprets several neurological and psychiatric conditions as disorders of consciousness. Autism is, for instance, a kind of supercharged consciousness, he believes, whereas his wife's depressive episodes arising from her bipolar disorder could stem from an underactive one.
Whether or not you agree with those ideas, Bor's engaging and knowledgeable prose, liberally sprinkled with personal vignettes and coupled with a knack for explaining complex concepts in everyday language, make this a book well worth reading.
It's sad how many authors write books just to make the world a more ignorant place!
A book about consciousness that does not mention work by Rupert Sheldrake or Dean Radin -one that complete ignores the overwhelming evidence of psi -is garbage.
Judging from the review, it's not even about "consciousness" and the word is conflated with identity, thinking, memory.
The lesson of the book is just "you are a meat puppet and your mind is a sac of jelly". Which is a clear error in logic to conclude from your father having a stroke. By that logic, radio stations must exist inside the radio because if you smash a radio it can't find the stations anymore.
"Autism is, for instance, a kind of supercharged consciousness..." okay, I thank them for throwing that line in... because now I'm not sad anymore because I'm laughing.