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464 pages, Hardcover
First published January 1, 2008
Its prologue was succinct and stuffed full of interesting facts (such as the discovery that rats have metacognition). Throughout, Gazzaniga asserted his view very clearly: that although humans and animals share many similarities we are not the same, as our abilities are on a completely different scale and league to those even of chimps.
Through his writing Gazzaniga's distinctive personality can easily be seen in the form of his shining wittiness colouring the pages. One of my favourite quotes from this book illustrates this quite well, when questioning whether big brains are the cause of why we are unique - "If you think the answer is going to be found in the beginning of the first chapter, you are not using that big brain of yours" (pg. 16).
In addition, he really tried (and mostly succeeded) to appeal to readers new to this area of science and professional specialists alike. Caught in the middle, I appreciated the fine balance Gazzaniga struck between heavy explanations of every specialist term and the other extreme of breezing through expecting readers to understand him fully. He does this by using explanations that most people would easily understand, such as the example of catching a fugitive to illustrate how communication works in the brain's prefrontal cortex. Gazzaniga literally explains all the terms uncommon in non-scientific books, such as module in the context of neurology. One of my favourite explanations has to be of pyramidal cells (a type of neuron) in the cerebral cortex, where he uses the rather unconventional visual example of Hershey's Kisses to help readers understand how the cells fit together in columns in the brain. I actually brought Human back home over Easter, and my dad picked it up to take a look, scanned the first few pages, and was so captivated that after I left he began reading the Chinese translated version of this book, and finished it even before I did, moving on next to The Ethical Brain: The Science of Our Moral Dilemmas, also by Gazzaniga. A handy index at the back was also very convenient.
His concise definitions ensure that his writing stays focused, that it does not suddenly veer off on a tangent; therefore keeping his argument strong. If there is one thing my history teachers have taught me about writing argumentative essays, it is to never ever talk about anything unrelated to the core argument, as it disperses the impact of your words and decreases the 'punchiness' of the final conclusion.
I did find that it was a tough book to read, but it was also funny and interesting. Though I don't study neuroscience or behavioural psychology in class, the areas where it touched upon human evolution and the arguments surrounding Homo sapiens as the unique outcome from this process, helped deepen and flesh out my understanding of evolutionary biology. After reading this book, even in the shower when I think of behaviours certain people exhibit, such as checking mucus in their tissues after blowing their noses, I keep feeling that they are inextricably linked to evolution and natural selection, as this behaviour could very well have lingered due to mucus colour being a possible sign of whether a sinus infection is present. (I apologise for that gross example.)
Basically - good book.