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Book Review of: The Body Has a Mind of Its Own

How Body Maps in Your Brain Help You Do (Almost) Everything Better

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Review of The Body Has a Mind of Its Own, by Sandra Blakeslee and Matthew Blakeslee (Hardcover, 2007)

(You can print this review in landscape mode, if you want a hardcopy)

Reviewer: Mark Lamendola, author of over 6,000 articles.

This is an excellent book. The authors have a gift for making a complex subject understandable. Another plus is that, like the best of nonfiction authors, they stick to the subject and rely on facts rather than opinion. This book provides a wonderful introduction into an area of science formerly limited to neurologists and other highly-trained specialists.

Central theme

The central theme of this book is that the brain maps the body. In fact, different areas of the brain contain different kinds of body maps with different functions. These body maps in the brain determine such things as how you perceive reality and how you respond to that perception. One of the most fascinating aspects is the plasticity of these maps.

For example, have you ever noticed that you can "feel" with the end of a tool? You put a wrench on a nut, and you suddenly have several important bits of information about that nut. This is because your body map extends to include the tool. And it's why mechanics can accurately work without actually seeing what their hands or tools are touching. Body maps extend from the rider to include the horse and from the horse to include the rider. Lovers share body maps, and the book explores what goes on there also.

This book explores the effects of dysfunctional body maps, too, shedding light on such things as eating disorders and out of body experiences. And it looks at the interplay between body maps and culture, language, music, emotions, pain, and even parenting.

The brain and the body are not separate entities, but are intertwined, interdependent, and interfunctional. Understanding this fact is essential to understanding how and why body maps work. This book explains that lucidly.

You may have heard of the "little man" theory, or the homunculus theory. If not, perhaps you recall the drawing of the skull being opened to reveal a little man operating control levers. That drawing represents the theory. We all know there's not an actual physical person of tiny stature pulling levers in our heads. But it's commonly thought that the "me" of us is a central entity that works like that little man. Another common analogy for this theory is the symphony conductor.

Because of this theory, many early researchers of body maps looked for the master map. As it turns out, there isn't one. There is not "little man," no master homunculus, no conductor, no central authority. The brain is a collection of homunculi or body maps working together. If this doesn't sound possible, think of an ant colony. There is no master ant giving out directions. Each ant does its part in a concert of ants with no conductor. The many body maps of the brain are similarly independent yet cooperative. The brain also contains body maps that facilitate the communication between these disparate parts and the various body maps those parts use.

Only flaw

The book runs a couple hundred pages, in an unusually small typeface. It would be better, in a future release, to be produced in a larger font. I don't think anyone over about the age of 30 can read it unaided. This production issue is the one flaw in this book, and I hope the publisher decides to spend a bit more on paper to fix that in the next printing.

Summary of contents

The Body Has a Mind of Its Own consists of 10 chapters. The first chapter gives the reader the background about body maps and how they are everywhere in the brain. Chapter Two talks about the little man theory discussed earlier in this review.

Chapter Three talks about how body maps filter and change incoming information to conform to what the map expects to see. You've no doubt heard the expression "People hear what they want to hear." That is a basic aspect of our brain, which is a prediction machine. It's always looking for matches. Just as politicians change the data to match their statements, so quite often does the brain change or filter information so that it matches what the brain expects to see. This is the basis for illusions, and we all know those work.

Sometimes these illusions don't serve us very well. One example the book uses is the anorexic who feels fat. This prediction thing isn't all bad--many self-help experts advise us to imagine ourselves as having already achieved something or to take on some other enabling attitude.

Chapter Four takes the concepts of Chapter Three a step further, and looks at why mental practice--long used by martial artists--is nearly as effective as physical practice and why when both are done you get a 2 + 2 = 5 effect.

Chapters Five and Six explore what happens when body maps blur or break. Some of the manifestations are bizarre.

Earlier, I mentioned that when you grasp a tool your body map extends to include that tool. Chapter Eight includes a discussion of this in the broader context of where body maps end. Chapter Seven also talks about where body maps end, but more in terms of how they seek to exclude things that are not part of the body.

Sales trainers talk about mimicking other people to win their agreement. In Chapter Nine, we see why this works.

Deep in the brain is a structure called the insula. Only mammals even have one. In humans, it's massive compared to those of other species (relatively speaking--in whales, body parts are just plain bigger on an absolute scale). The consensus now is the insula is the seat of emotional awareness. Chapter Ten, in discussing the insula, is a fitting last chapter because it is, at least to me, the most profound part of the book.

The authors tie everything together in the Afterword, but also raise additional questions that are worth pondering as we search for meaning and purpose in life.

Descartes concluded that because he thinks he must exist. Has your human mind has ever contemplated itself, trying to answer the question, "Who am I? Or have you wondered about where in your body your mind actually resides? The Body Has a Mind of Its Own will help you bring some fascinating information to bear on those concepts and many others. Not only is this book thought-provoking, but it helps explain thought itself. How you perceive reality may not be as straightforward as you once thought. Or still think, depending on your body maps.



About these reviews

You may be wondering why the reviews here are any different from the hundreds of "reviews" posted online. Notice the quotation marks?

I've been reviewing books for sites like Amazon for many years now, and it dismays me that Amazon found it necessary to post a minimum word count for reviews. It further dismays me that it's only 20 words. If that's all you have to say about a book, why bother?

And why waste everyone else's time with such drivel? As a reader of such reviews, I feel like I am being told that I do not matter. The flippancy of people who write these terse "reviews" is insulting to the authors also, I would suspect.

This sound bite blathering taking the place of any actual communication is increasingly a problem in our mindless, blog-posting Webosphere. Sadly, Google rewards such pointlessness as "content" so we just get more if this inanity.

My reviews, contrary to current (non) standards, actually tell you about the book. I always got an "A" on a book review I did as a kid (that's how I remember it anyhow, and it's my story so I'm sticking to it). A book review contains certain elements and has a logical structure. It informs the reader about the book.

A book review may also tell the reader whether the reviewer liked it, but revealing a reviewer's personal taste is not necessary for an informative book review.

About your reviewer

  • Books are a passion of mine. I read dozens of them each year, plus I listen to audio books.
  • Most of my "reading diet" consists of nonfiction. I think life is too short to use your limited reading time on material that has little or no substance. That leads into my next point...
  • In 1990, I stopped watching television. I have not missed it. At all.
  • I was first published as a preteen. I wrote an essay, and my teacher submitted it to the local paper.
  • For six years, I worked as an editor for a trade publication. I left that job in 2002, and still do freelance editing and authoring for that publication (and for other publications).
  • No book has emerged from my mind onto the best-seller list. So maybe I'm presumptuous in judging the work of others. Then again, I do more describing than judging in my reviews. And I have so many articles now published that I stopped counting them at 6,000. When did I stop? Probably 20,000 articles ago! (It's been a while).
  • I have an engineering degree and an MBA, among other "quant" degrees. That helps explain my methodical approach toward reviews.
  • You probably don't know anybody who has made a perfect or near perfect score on a test of Standard Written English. I have. So, a credential for whatever it's worth.

About reading style

No, I do not "speed read" through these. That said, I do read at a fast rate. But, in contrast to speed reading, I read everything when I read a book for review.

Speed reading is a specialized type of reading that requires skipping text as you go. Using this technique, I've been able to consistently "max out" a speed reading machine at 2080 words per minute with 80% comprehension. This method is great if you are out to show how fast you can read. But I didn't use it in graduate school and I don't use it now. I think it takes the joy out of reading, and that pleasure is a big part of why I read.

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