The “Silent Land” in question is the brain. Paul Broks is a neuropsychologist, who spends his days talking to and helping people with brains damaged by stroke, injury, or other trauma. They are altered – the same person, but permanently changed. Broks helps these people and their families come to terms with the injuries, and at the same time speculates on how the Silent Land can give rise to our humanity.
The book is a series of case studies: frank and humane discussions with brain damaged people, very readable, and not at all technical. By looking at how focussed damage to particular brain areas gives rise to specific cognitive deficits, Broks addresses the questions of localisation of function in the brain, and asks the larger question: how does this dark and tangled web of synapses and neurons in our skull conjure up a person?