Showing posts with label biology. Show all posts
Showing posts with label biology. Show all posts

Friday, 11 February 2011

REVIEW: The Shallows - How the Internet is Changing the Way We Think, Read and Remember, by Nicholas Carr (5*)

(Atlantic Books, 2010)

Every once in a while a book comes along that changes your life. You suspect it by the end of the first chapter, and by the time you close the book it’s assured. First came Naomi Klein’s No Logo, urging us to look beyond the gleaming images of big-name brands. Then there was Joanna Blythman’s Shopped, pulling us behind the benign faces of Britain’s most successful supermarkets. And now I can add Nicholas Carr’s The Shallows to the list, this dazzling polemic exposing the uncomfortable truths behind the all-powerful reign of the Internet over our modern lives.

Like No Logo and Shopped, The Shallows is hard to summarise in any meaningful way because its argument is so complex and sweeping. This is not a book to devour whole – it is a book to be carefully read, considered and absorbed. Carr isn’t a nostalgic professor yearning for the old days of leather-bound tomes and quill pens. But while he readily admits that the Internet has become a vital, entertaining and useful tool in his everyday life, he was also beginning to worry about the unseen effects of his online life. This book is the eloquent sum of his extensive and thorough research.

It’s quite a ride. In exploring his subject, Carr reaches way back into the history of intellectual technology, considering the impact of early innovations such as maps, clocks and the book on human life. From there he moves into the age of the computer, from the earliest machines through to the all-pervasive use of the Internet we see around us today. The last few decades, he explains, have raced by in a blur, and suddenly the World Wide Web is our medium of choice for almost everything we do.

But what about the biological impact of the Internet? Here is where things get really interesting. Modern neurobiological studies have shown that the brain’s neuroplasticity allows it to change with each experience, each path to learning we take. And thanks to the Internet, our brains really are shifting, away from paths that allow deep reading and reflective thought, and towards a chemistry geared to process the distraction and rapid-fire information that the Internet represents. Carr shows how even reading a simple page containing links and hypertext is a far cry from reading a page in a book, requiring us to stop, however fleetingly, to process the meaning of the link (What does it link to? Does it sound interesting? Will it be relevant to me?) and demonstrably disrupting our absorption in and thus our understanding of the text. In fact, it uses a different area of the brain entirely, one geared towards problem solving rather than comprehension. A little scary given the way schools and other institutions are already throwing out their books and replacing them with PCs and e-readers, isn’t it?

I could keep going forever, but the point of the matter is this: the Internet can be damaging. And as the future entwines itself more and more tightly with the virtual world, it makes sense to be savvy enough about its effects to be able to use and enjoy it without allowing it to destroy the things we value: our attention, our concentration and our ability to understand and process information that requires a little more involvement to fully grasp. Go, buy the book. It may just turn out to be one of the most timely and vital books of the decade. Open your eyes, open your mind – and maybe it’ll change your life too.

NOTABLE QUOTABLES:
  • "My mind isn't going - so far as I can tell - but it's changing.  I'm not thinking the way I used to think.  I feel it most strongly when I'm reading.  I used to find it easy to immerse myself in a book or a lengthy article.  My mind would get caught up in the twists of the narrative or the turns of the argument, and I'd spend hours strolling through long stretches of prose.  That's rarely the case any more.  Now my concentration starts to drift after a page or two.  I get fidgety, lose the thread, begin looking for something else to do.  I feel like I'm always dragging my wayward brain back to the text.  The deep reading that used to come naturally has become a struggle."
  • "Between the intellectual and behavioral guardrails set by our genetic code, the road is wide, and we hold the steering wheel.  Through what we do and how we do it - moment by moment, day by day, consciously or unconsciously - we alter the chemical flows in our synapses and change our brains.  And when we hand down our habits of thought to our children, through the examples we set, the schooling we provide, and the media we use, we hand down as well the modifications in the structure of our brains."

Source: I borrowed this book from my local library.

Saturday, 15 January 2011

REVIEW: Seasons of Life - The Biological Rhythms that Living Things Need to Thrive and Survive, by Russell Foster and Leon Kreitzman (4*)

(Profile Books, 2009)

Foster and Kreitzman's first book, Rhythms of Life, explained the importance of the circadian, or daily, rhythms that animals and plants live by. This second venture shifts the time span outwards and delves into the complexities of circannual, or seasonal, rhythms.

The first chapter is devoted to plants, and the way in which they use circannual rhythms to initiate flowering and other vital events in their yearly cycle. There are chapters on circannual rhythms in animals and birds, including the timing of conception and reproduction, hibernation and migration. These chapters clearly set out the latest research on why and how these rhythms operate, how they contribute to species survival, and demonstrate the way all of nature is connected in a giant web of interdependent species and individuals.


Finally there are chapters on the effects of circannual rhythms on humans. This includes such fascinating topics as the prevalence of certain illnesses at different times of year, birth and death patterns in different seasons, and a chapter on SAD, including research and ideas on its prevention and treatment.

This was definitely not what you would call an easy read. The chapters on animals and plants are very detailed and there is a fair amount of biological terminology to get your head around, as well as diagrams that take a little time to study and understand. That said, Foster and Kreitzman have done a great job at explaining things for the lay reader and making the book as accessible as possible without losing its scientific rigour. The chapters on human circannual rhythms are much easier to understand anyway, approaching the subject on a more sociological basis to reflect both the effects of complex social issues on our lives and the relative lack of knowledge about our human internal clocks. A very worthwhile and interesting read!

Source: I borrowed this book from my local library.