Welcome to Your Brain - Book Review
Title: Welcome to Your Brain : Why You Lose Your Car Keys But Never Forget How to Drive and Other Puzzles of Everyday BehaviorAuthors: Sandra Aamodt, Sam Wang
ISBN-13: 9781596912830
Published: March 2008
If you want to know a LOT about how your brain works, this book’s for you. Written in a light-hearted, yet heavily neuroscientific way, the authors easily shift from silly brain-facts, to detailed physiological descriptions, to fascinating insights and implications ... and back again.
Indeed, the book starts with a 20-question “How Well Do You Know Your Brain?” quiz, which includes such teasers as:
The book, divided into six parts, then goes on to explain why things are so. “It’s a complicated subject,” say the authors in their introduction, “but we think it doesn't have to be intimidating. This book will give you the inside scoop on how your brain really works – and how you can help it work better.
- When are your last brain cells born?
a) before birth
b) at age six
c) between the ages of 18 and 21
d) in old age- Which of the following strategies is the best one for overcoming jet lag?
a) taking melatonin the night after you arrive at your destination
b) avoiding daylight for several days
c) getting sunlight in the afternoon at your destination
d) sleeping with the lights on- You are in a noisy room attempting to talk to your friend on your cell phone. To have a clearer conversation, you should:
a) talk more loudly
b) cover one ear and listen through the other
c) cover your ear when you talk
d) cover the mouthpiece when you listen- Which of the following is the hardest thing your brain does?
a) doing long division
b) looking at a photograph
c) playing chess
d) sleeping- What percentage of your brain do you use?
a) 10%
b) 5% when you are sleeping, 20% when you are awake
c) 100%
d) varies according to intelligence
- “In part 1, we pull back the curtain to show what is happening behind the scenes and explain how your brain helps you survive in the world.
- “In part 2, we take a tour of our senses, explaining how you see, hear, touch, smell, and taste.
- “In part 3, we show how your brain changes through life, from birth to old age.
- “In part 4, we examine your brain’s emotional systems, focusing on how they help you navigate life effectively.”
- “In part 5, we discuss your reasoning abilities, including decision making, intelligence, and gender differences in cognition.
- “In part 6, we examine altered states of your brain – consciousness, sleep, drugs and alcohol, and disease.”
And they do, in considerable detail! To give you a taste, here are a few excerpts, of note:
Is your brain like a computer?
“Today, people tend to talk about brains as if they were a sort of biological computer, with pink mushy ‘hardware’ and life-experience-generated ‘software’. But computers are designed by engineers to run like a factory, in which actions occur according to an overall plan and in logical order. The brain, on the other hand, works more like a busy Chinese restaurant: it’s crowded and chaotic, and people are running around to no apparent purpose, but somehow everything gets done in the end.” Additionally, “computers mostly process information sequentially, while the brain handles multiple channels of information in parallel.” So, no, you brain really isn't like a computer.
Myth: Blind people have better hearing
“When tested, blind people are no better at detecting faint sounds as sighted people. “ But, “blind people do have better memory, especially for language. They also are better than sighted people at language tasks, including understanding the meaning of sentences. In addition, blind people are better at localizing sounds. Blind people seem to improve these abilities by taking advantage of brain space that isn't being used for vision. In blind people, verbal memory tasks activate the primary visual cortex, which is involved only in vision in sighted people.” One of the language tasks that blind people do especially well: The ability to generate verbs.
Practical Tip: How can you protect your brain as you get older?
“The most effective approach to keeping your brain healthy with age turns out to be something you probably wouldn't expect: physical exercise. Regular exercise, of the type that elevates your heart rate, is the single most useful thing you can do to maintain your cognitive abilities in later life.”
Myth: Women are moodier than men
“What most people don’t realize is that men are moody, too. In fact, their moods vary as much from hour to hour as women’s moods. How do we know this? When psychologists give beepers to men and women and ask them to write down their mood whenever it goes off, men and women report similar variations. Curiously, both men and women tend to remember women’s mood swings better, so if people are asked later to remember how moody they or their partners were in the previous week, more mood swings are reported for women than men.”
The Dalai Lama, enlightenment, and brain surgery
In 2005, the Dalai Lama spoke at the annual meeting of the Society of Neuroscience. During the Q&A, one of the book’s authors (Wang) asked him if he’s in favor of neuroscience research could someday helping people achieve enlightenment through artificial means such as drugs or surgery. His answer: If such a treatment were available, it would have saved him time spent in meditation, freeing him to do more good works. He even pointed at his own head, saying that if bad thoughts could be stopped by removing a brain region, he wanted to “Cut it out! Cut it out!” He did say, though, that that’d only be acceptable if it left one’s critical faculties intact (thus ruling out frontal lobotomies, to the relief of conference attendees).
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And why do we lose our car keys but never forget how to drive?! In large part because while we tend to think of our memory as a ‘single phenomenon’, it actually has many parts, each using different regions of the brain. So, “a skill such as driving a car uses a number of brain regions but does not require the temporal lobe system,” which is where we learn, remember (and forget) new facts and events.
If your a "neuro-nut", you'll likely want to read this book from start to finish. But it works equally well for those who prefer to just pick a page - any page - and see what you find. Either way, you'll likely learn some interesting things about your brain ... and have some excellent new topics to talk about at your next backyard bar-b-q or networking event.
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Correct Answers: 1d, 2c, 3d, 4b, 5c. (So, how'd you do?!)
Labels: Book Reviews, Feature Articles
















