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How We Decide Paperback – January 1, 2010
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Since Plato, philosophers have described the decision-making process as either rational or emotional: we carefully deliberate, or we blink and go with our gut. But as scientists break open the minds black box with the latest tools of neuroscience, theyre discovering that this is not how the mind works. Our best decisions are a finely tuned blend of both feeling and reasonand the precise mix depends on the situation. When buying a house, for example, its best to let our unconscious mull over the many variables. But when were picking a stock, intuition often leads us astray. The trick is to determine when to use the different parts of the brain, and to do this, we need to think harder (and smarter) about how we think.
Jonah Lehrer arms us with the tools we need, drawing on cutting-edge research as well as the real-world experiences of a wide range of decidersfrom airplane pilots and hedge fund investors to serial killers and poker players.
Lehrer shows how people are taking advantage of the new science to make better television shows, win more football games, and improve military intelligence. His goal is to answer two questions that are of interest to just about anyone, from CEOs to firefighters: How does the human mind make decisions? And how can we make those decisions better?
- Print length302 pages
- LanguageEnglish
- PublisherMariner Books
- Publication dateJanuary 1, 2010
- Dimensions5.5 x 1 x 8.25 inches
- ISBN-100547247990
- ISBN-13978-0547247991
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Editorial Reviews
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"Over the past two decades, research in neuroscience and behavioral economics has revolutionized our understanding of human decision making. Jonah Lehrer brings it all together in this insightful and enjoyable book, giving readers the information they need to make the smartest decisions.”—Antonio Damasio, author of Descartes’ Error and Looking for Spinoza
“Jonah Lehrer ingeniously weaves neuroscience, sports, war, psychology, and politics into a fascinating tale of human decision making. In the process, he makes us much wiser.”—Dan Ariely, author of Predictably Irrational
“Should we go with instinct or analysis? The answer, Lehrer explains, in this smart and delightfully readable book, is that it depends on the situation. Knowing which method works best in which case is not just useful but fascinating. Lehrer proves once again that he’s a master storyteller and one of the best guides to the practical lessons from new neuroscience.”—Chris Anderson, editor in chief of Wired and author of The Long Tail
“As Lehrer describes in fluid prose, the brain’s reasoning centers are easily fooled, often making judgments based on nonrational factors like presentation (a sales pitch or packaging)...Lehrer is a delight to read, and this is a fascinating book (some of which appeared recently, in a slightly different form, in the New Yorker) that will help everyone better understand themselves and their decision making.” —Publisher's Weekly, starred review
From the Back Cover
About the Author
Jonah Lehrer is editor at large for Seed magazine and the author of Proust Was a Neuroscientist. A graduate of Columbia University and a Rhodes scholar, Lehrer has written forThe New Yorker, the Washington Post, and the Boston Globe. He edits the Mind Matters blog forScientific American and writes his own highly regarded blog, The Frontal Cortex.
Excerpt. © Reprinted by permission. All rights reserved.
The quick decisions made by a quarterback on a football field provide a window into the inner workings of the brain. In the space of a few frenetic seconds, before a linebacker crushes him into the ground, an NFL quarterback has to make a series of hard choices. The pocket is collapsing around him — the pocket begins to collapse before it exists — but he can’t flinch or wince. His eyes must stay focused downfield, looking for some meaningful sign amid the action, an open man on a crowded field. Throwing the ball is the easy part.
These passing decisions happen so fast they don’t even seem like decisions. We are used to seeing football on television, captured by the cameras far above the grassy stage. From this distant perspective, the players appear to be moving in some sort of violent ballet; the sport looks exquisitely choreographed. You can see the receivers spread the zone and watch the pocket slowly disintegrate. It’s easy to detect the weak spots of the defense and find the target with man-on-man coverage. You can tell which linebackers bought the play-action fake and see the cornerback racing in on the blitz. When you watch the game from this omniscient angle — coaches call it "the eye in the sky" — it appears as if the quarterback is simply following orders, as if he knows where he is going to throw the ball before the play begins.
Product details
- Publisher : Mariner Books; Reprint edition (January 1, 2010)
- Language : English
- Paperback : 302 pages
- ISBN-10 : 0547247990
- ISBN-13 : 978-0547247991
- Item Weight : 10.4 ounces
- Dimensions : 5.5 x 1 x 8.25 inches
- Best Sellers Rank: #219,069 in Books (See Top 100 in Books)
- #192 in Popular Applied Psychology
- #395 in Decision-Making & Problem Solving
- #450 in Cognitive Psychology (Books)
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About the author

Jonah Lehrer is the author of A Book About Love, Imagine, How We Decide and Proust Was a Neuroscientist. He graduated from Columbia University and studied at Oxford University as a Rhodes Scholar. He's written for The New Yorker, Nature, The New York Times Magazine and many other publications.
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A wealth of experiments that illustrate Lehrer's points, and short stories to bring your experience alive. I would point out, that his work is a primer to expose the reader to the broad aspects of how our minds work. All in all, a work that begins ones journey into how we decide. Lehrer has included excellent Notes and Bibliography sections for further reference and there is a well developed Index for cross referencing topics. All excellent resources to dive deeper into how we decide.
An NFL Football Quarterback governed primarily by emotions? Yes it is true according to research into an area of the brain (orbitofrontal cortex) that, when damaged, inhibits the feeling of emotions resulting in indecision. The first chapter describes how our "anatomical narrative" about our brain is false, and that emotions play a pivotal role in how we, as humans, make split second decisions. "Homos sapiens is the most emotional animal of all." It would seem that calculating many multi-variables, each in nanoseconds, would be more rational than emotional. Lehrer explains why rational and emotional are inter-related and necessary to each other and how rational evaluation would take too long.
Chapter 2 continues with the emotions theme through discussion of the single molecule dopamine. Lehrer discusses how various centers of the brain anticipate reward, learn from mistakes through pattern recognition and relearn through repetition and practice. Of interest is the discussion on the observation that praise for effort, although with mistakes, provides people with more incentive than praise for being correct or more perfect. Summary, we learn more from our mistakes.
Emotions are not perfect though, the topic of Chapter 3. The flaw? The mistakes we make when there is no pattern! Slot machines, prediction addiction trying to decipher patterns from true randomness or unpredictable rewards (3 or 4 times more exciting), and the game show Deal or No Deal are discussed. The discussion of how we approach the stock market is enlightening and how the flaw for dealing with randomness in our brains may lead to market bubbles and busts. Fictive-error learning, feeling of regret, loss aversion, negativity bias, all are examples and result of "slavishly following your primitive reward circuits." Credit cards and sub prime loans and buy-now are impulsive emotions wanting reward now overcoming reason. "The emotional brain is routinely duped."
As to overcoming the investment foibles in Chapter 3, there are investment books available that help you structure your approach to the random markets that go into more detail in what Lehrer suggests.
The Investor's Manifesto: Preparing for Prosperity, Armageddon, and Everything in Between by William J. Bernstein
The Four Pillars of Investing: Lessons for Building a Winning Portfolio by William J. Bernstein
What Wall Street Doesn't Want You to Know: How You Can Build Real Wealth Investing in Index Funds by Larry E. Swedroe
The Successful Investor Today: 14 Simple Truths You Must Know When You Invest by Larry E. Swedroe
Chapters 4 and 5 switch gears from the emotional brain to the rational brain. Lehrer tells the story of the firefighter who invented the standard technique for firefighters to survive a fire that's about to overrun them. Rather than succumb to "perceptual narrowing," the brain expanded the list of possibilities. It is such that a new break through or discovery is made - rational thought. He goes on to tell of how the inability for rational thought leads to not being able to think ahead, plan, or repress impulses. Here framing a choice becomes important - is it framed positively, or negatively (recall loss aversion), to evoke a choice? "People who are more rational don't perceive emotion less, they just regulate it better." For those parents with Attention Deficit Hyperactivity Disorder (ADHD) children, his discussion on brain development may bring good news. Brain development of adolescents and their behavior are also covered. Working memory and how it works to form useful associations for new problems while the rational brain filters out unneeded thoughts is presented through example of the crash of Flight 232.
Chapter 5 looks at when our brain over analyzes. Sports, performers, students taking tests, sometimes "choke." Why? Thinking too much. Also, stereotype threats, and blind taste tests all cut you "off from the wisdom of your emotions." The "weighting mistake" people make between choosing a home in the suburbs and longer commute, over an urban choice with a shorter commute. The placebo effect is also explored in light of your expectations. Trying to remember too much and how that may lead to poor choices. Where bad moods may come from. Mental accounting. Anchoring effect. How too much information may lead to inability to ignore irrelevant data or poverty of attention ... and the effect this has on the medical profession. The prefrontal cortex is laden with flaws and foibles and is easy to hoodwink.
Chapter 6 explores the realm of how we treat other people, or the requirement to consider other people ... morality. What makes someone a psychopath? How our modern legal system is antiquated in the assumptions it is based on. How our view of morality has been backwards. How an egocentric decision making strategy backfires with moral decisions. Altruism and how it makes some feel good. In addition, when the brain is broken: Autism; Child abuse; Broken homes; and Solitary living while young. All are discussed along with interesting experiments that show the effect of normal versus broken brain development.
Chapter 7 discusses how we decide and arrive at our beliefs. How retailers manipulate our brains by priming one area of the brain with positive stimulus, while soothing another area of the brain in order for us to "go broke convinced that we are saving money." Credit cards, as plastic, inhibits the insula by dulling the averse feeling of having spent real money. Self-delusion. Lehrer discusses politics as well as to how our brain turns into an information filter to block out points we don't agree with. How certainty in our thinking can lead us astray. How censoring our minds leads us to ignore relevant information. "When making decisions, actively resist the urge to suppress the argument.
The final chapter uses the game of poker to demonstrate the simultaneous use of both the rational and emotional parts of the brain. This then goes to turn yet another widely held belief on its head, that the harder decisions are the ones that require the most feeling, not the easy decisions, as many would initially think. In situations with incomplete information, such as the financial markets, we need to think and feel. Lehrer concludes the chapter with some general guidelines: Simple problems require reason. Novel problems also require reason. Embrace uncertainty. You know more than you know. Think about thinking.
Other books worth the read relating to how the brain and mind works:
Predictably Irrational, Revised and Expanded Edition: The Hidden Forces That Shape Our Decisions by Dan Ariely
Your Money and Your Brain: How the New Science of Neuroeconomics Can Help Make You Rich By Jason Zweig which illustrates where many of these brain areas are.
A philosophy, that may help avoid many issues Lehrer raises in Chapter 3, is to adapt an overall wealth approach to your finances rather than shooting to make more money now. How? A resource may be: Wealth Odyssey: The Essential Road Map For Your Financial Journey Where Is It You Are Really Trying To Go With Money?
If you think about a book on human behaviours, unexpected findings, and researches, you could probably think of a lot of them. If you add neuroscience to the mix, you would probably think of a few. But if you think of that kind of book with a practical and solid guideline for you to change how you live your life, I doubt you could find that many. And "How We Decide" by Jonah Lehrer falls in that category.
The book is about `decisions' and how they are made by rationality and emotions from you brain (there are lots of parts within the frontal cortex but I'm not sure which). This is another typical book of this genre but let me tell you why should you `decide' to get this book.
Contents
The Quarterback in the Pocket
The first story starts with the 2002 Super Bowl and how Tom Brady made the decision that led the team to victory. Lehrer moved onto stories of Plato and the very interesting one is the man who had a brain damage and lost emotions and eventually, he just could not `decide'. This chapter focuses on `emotion' and how it is crucial to decision making.
The Predictions of Dopamine
The chapter begins with the story of Lieutenant Commander Michael Riley who commanded a British destroyer and decided to do something vital during the Persian Gulf War (I'm not going to spoil the story). The author also wrote about Bill Robertie, a chess master, a widely respected poker expert, and a backgammon champion. By the way, this is not my field but Dopamine is the brain region (or cell, or neurons, or whatever) that links our emotion to expectations.
Fooled by a Feeling
Emotions cannot do everything. The author wrote about Ann Klinestiver, a Parkinson teacher who became a slot machine addict (and lost literally almost everything in life) AFTER her Parkinson's disease `treatment'. The chapter moves onto basketball player's hot hands, stock investment, and a game show `Deal or No Deal'. The epic part of this chapter is about credit card (I am personally moved by this part and it sent shiver down my spine). The core of this chapter that wild feelings or emotions can bring us down.
The Uses of Reason
The story of a firefighter who survive the thick wall of raging fire starts the chapter perfectly because it is about how reasons are crucial at certain times. There is also another heartfelt story about a young girl, Mary, who were a brilliant and bright girl with bright future but one day she became different and ruined her life drinking, sleeping around and became angry a lot. She was eventually infected by HIV because of her brain tumor! Another great story in this chapter is how Captain Al Haynes of the United Airlines Flight 232 could maneuver the plane without basically everything working except the thrust levers.
Choking on Thought
The chapter begins with the opera singer Renee Fleming and how her career went downhill. Likewise, Van de Velde, a golf pro, could not recover from the career slump because of their `thoughts'. There are numerous researches in this chapter along with the MRI machine that failed to treat back pain. The point of the chapter is that we can think too much because our brain is not designed to calculate, take into account, and make a decision of 10 choices with 20 factors each.
The Moral Mind
This is also one of my favourite chapters starting with John Wayne Gacy, a psychopath who murdered thirty-three boys. The crucial aspect is how he thought and decided to commit those `evil' (put your baddest word here) crimes without a wink. There are many researches including the one on war. There is also a very eye-opening story about `autism'.
The Brain Is An Argument
Within a decision, there are numerous parts of your brain working at the same time and you are likely to decide based on which part is winning be it choosing a political party candidate, shopping, or pundits. There is a story about decision-making failure during the 1973 war in the Middle East.
The Poker Hand
This chapter is mainly about Michael Binger, one of the world's best poker players and how he applied different tactics in each different round. The chapter ends with the simple guidelines (with explanations, of course)
SIMPLE PROBLEMS REQUIRE REASON
NOVEL PROBLEMS ALSO REQUIRE REASON
EMBRACE UNCERTAINTY
YOU KNOW MORE THAN YOU KNOW
THINK ABOUT THINKING
Coda
It's the conclusion with another great story
...
I'll compare "How We Decide" to an ideal business book in my personal opinion a book that is easy to understand, distinct, practical, reliable, insightful, and provides great reading experience.
Ease of Understanding: 9/10: From the briefing above, you will see that there are so many stories and they make it easy to understand the content and the way Jonah Lehrer wrote is a breath of fresh air. Each chapter has its core concept and the explanations are clear. The only confusion comes from the neuroscience. If you are not familiar with the brain parts, you might struggle a bit but that's minor.
Distinction: 6/10: What can I say? I have read some researches in the book from other books and this book is not the breakthrough of a major finding on neuroscience. However, this book is different in the aspect that it tells you why you did what you did and it tells you how should you do, which brings us to the next part.
Practicality: 9/10: When I first picked up "How We Decide", I did not have much hope in practicality but this book exceeds every expectation of mine. I might be biased but since I read the chapter on credit card, I really stopped using my credit card (except for online purchases) because the book told me what I thought and it was like a lightning struck on your head. The stories and researches will make you think of yourself and the world around you differently.
Credibility: 8/10: There is no need to not believe the book because of the tons of highly advanced scientific researches regarding the activity in your brain. Every explanation and analysis is written in plain language but scientific proofs are always there.
Insightful: 7/10: When I think of this book, I can think of so many stories (this is probably the book which has stories that I can recall most). I spent hours telling my friends about the stories in this book. There are lots of stories and lots of researches. Yes, it's pretty insightful.
Reading Experience: 10/10: I love the book. The book changes the way I spend and that alone is much great than the $25 price tag of the book. I changed the way I think of an unfortunate autistic person I know personally because in the past, I think of feeling and emotion for granted but this book says `don't, you don't have a clue'. Moreover, the book has (I said it for the millionth time) great stories that you will remember.
Overall: 8.2/10: I love the book. Bias? Possibly. "If you're going to take one idea away from this book, take this one: Whenever you make a decision, be aware of the kind of decision you are making and the kind of thought process it requires." And trust me that if you start from that idea, you'll get countless of invaluable ideas, for life.
Top reviews from other countries
El autor escribe de forma sencilla, clara y directa, y aunque está en inglés, es muy fácil de entender. No se requieren grandes conocimientos sobre el idioma para sacarle partido al contenido del libro.
Aunque se echa en falta la utilización de esquemas, gráficos o imágenes para asentar la explicación de algunos conceptos, "How we decide" es sin duda un libro de gran valor para iniciarse en la investigación y comprensión sobre los circuitos neuronales relacionados con la toma de decisiones.
Reviewed in Canada on November 11, 2019
Sehr anschaulich und einnehmend in der Bildsprache, gelingt es dem Autor zu beschreiben, wie das menschliche Gehirn arbeitet.
Das es bei diesem Prozess zu Abweichungen in Form von Schnellschüssen und Gedankensprüngen kommt, bleibt nicht unbehandelt und rundet das Werk in jeder Hinsicht ab.
An manchen Stellen wäre eine Graphik wohltuend gewesen. Aber höchst wahrscheinlich wollte man bestimmte cerebrale Einheiten vor Bilderfluten schonen...








