most important lessons
- use emotional brain for complicated decisions, logical brain for simple decisions
- emotional brain has limited capacities...too much info confuses it
- to improve emotional brain decisions, limit the info being absorbed to only the most important...it cannot distinguish important from not important
- emotional brain picks up on patterns from practice...
- countless hours of practice is what makes a genius
- choking is the result of thinking too much...this confuses the emotional brain and logical brain kicks in..you lose the automatic performance that is needed at high levels of competition
- high emotions cause brain to panic and kicks the logical brain into action and silences the emotional brain...we need to control emotions to use emotional brain even during very stressful, emotional situations
- Think less about those
items that you care a lot about. Don't be afraid to let your emotions
choose. - If the emotional
brain is a fancy laptop, stuffed full of microprocessors
operating in parallel, the rational brain is an old-fashioned calculator. - Embrace uncertainty - Pretending that the mystery has been erased results in the dangerous trap of certainty. You are so confident you're right that you neglect
all the evidence that contradicts your conclusion. - One of the enduring
paradoxes of the human mind is that it doesn't know itself
very well. This is why people have emotions: they are
windows into the unconscious, visceral representations of all the
information we process but don't perceive - The reason these emotions are so intelligent is that they've
managed to turn mistakes into educational events. You are constantly
benefiting from experience, even if you're not consciously
aware of the benefits. - There are no shortcuts to this painstaking process; becoming
an expert just takes time and practice. But once you've developed
expertise in a particular area—once you've made the requisite
mistakes—it's important to trust your emotions when
making decisions in that domain. It is feelings, after all, and not
the prefrontal cortex, that capture the wisdom of experience. - And yet, this doesn't mean the emotional brain should always
be trusted. Sometimes it can be impulsive and short-sighted. Sometimes
it can be a little too sensitive to patterns. However, the
one thing you should always be doing is considering your emotions,
thinking about why you're feeling what you're feeling. - THINK ABOUT THINKING. If you're going to take only one
idea away from this book, take this one: Whenever you make a decision, be aware of the kind of decision you are making andthe kind of thought process it requires.
Introduction
- Sometimes we need to reason through our options and carefully analyze the possibilities. And sometimes we need to listen to our emotions. The secret is knowing when to use these different styles of thought. We always need to be thinking about how we think.
- To Damasio, Elliot's pathology suggested that emotions
are a crucial part of the decision-making process. When we
are cut off from our feelings, the most banal decisions became
impossible. A brain that can't feel can't make up its mind. - According to LeDoux, much of what we "think" is really driven by
our emotions. In this sense, every feeling is really a summary of
data, a visceral response to all of the information that can't be
accessed directly. - The process of thinking requires
feeling, for feelings are what let us understand all the information
that we can't directly comprehend. Reason without
emotion is impotent.
Chapter 2 - The Predictions of Dopamine
- When dopamine neurons are working properly, they are a crucial source of wisdom. The emotional brain effortlessly figures out what's going on and how to exploit the situation for maximum gain. Everytime you experience a feeling of joy or disappointment, fear or happiness, your neurons are busy rewiring themselves, constructing a theory of what sensory cues preceded the emotions. The lesson is then committed to memory, so the next time you make a decision, your brain cells are ready. They have learned how to predict what will happen next.
- Dopamine neurons automatically
detect the subtle patterns that we would otherwise fail to
notice; they assimilate all the data that we can't consciously comprehend.
And then, once they come up with a set of refined predictions
about how the world works, they translate these predictions
into emotions. Let's say, for example, that you're given
lots of information about how twenty different stocks have performed
over a period of time. (The various share prices are displayed
on a ticker tape at the bottom of a television screen, just
as they appear on CNBC.) You'll soon discover that you have
difficulty remembering all the financial data. If somebody asks
you which stocks performed the best, you'll probably be unable
to give a good answer. You can't process all the information.
However, if you're asked which stocks trigger the best feelings—
your emotional brain is now being quizzed—you'll suddenly
be able to identify the best stocks. According to Tilmann
Betsch, the psychologist who performed this clever little experiment,
your emotions will "reveal a remarkable degree of sensitivity"
to the actual performance of all of the different securities.
The investments that rose in value will be associated with the
most positive emotions, while the shares that went down in value
will trigger a vague sense of unease. These wise yet inexplicable
feelings are an essential part of the decision-making process.
Even when we think we know nothing, our brains know something.
That's what our feelings are trying to tell us. - This doesn't mean that people can coast on these cellular emotions.
Dopamine neurons need to be continually trained and retrained,
or else their predictive accuracy declines. Trusting one's
emotions requires constant vigilance; intelligent intuition is the
result of deliberate practice. - Even when Robertie wins—and he almost always wins—he insists
on searching for his errors, dissecting those decisions that
could have been a little bit better. He knows that self-criticism
is the secret to self-improvement; negative feedback is the best
kind. - The physicist Niels Bohr once defined an expert as "a person
who has made all the mistakes that can be made in a very narrow
field." From the perspective of the brain, Bohr was absolutely
right. Expertise is simply the wisdom that emerges from
cellular error. Mistakes aren't things to be discouraged. On the
contrary, they should be cultivated and carefully investigated. - Instead of praising kids for trying hard, teachers typically
praise them for their innate intelligence (being smart). Dweck
has shown that this type of encouragement actually backfires,
since it leads students to see mistakes as signs of stupidity and
not as the building blocks of knowledge. The regrettable outcome
is that kids never learn how to learn. - The problem with praising kids for their innate intelligence
—the "smart" compliment—is that it misrepresents the neural
reality of education. It encourages kids to avoid the most useful
kind of learning activities, which is learning from mistakes. - Unless you experience the unpleasant symptoms of being wrong,
your brain will never revise its models. Before your neurons can
succeed, they must repeatedly fail. There are no shortcuts for this
painstaking process. - Although we tend to think of
experts as being weighed down by information, their intelligence
dependent on a vast amount of explicit knowledge, experts are
actually profoundly intuitive. When an expert evaluates a situation,
he doesn't systematically compare all the available options
or consciously analyze the relevant information. He doesn't rely
on elaborate spreadsheets or long lists of pros and cons. Instead,
the expert naturally depends on the emotions generated by his
dopamine neurons. His prediction errors have been translated
into useful knowledge, which allows him to tap into a set of accurate
feelings he can't begin to explain. - The best experts embrace this intuitive style of thinking. Bill
Robertie makes difficult backgammon decisions by just "looking"
at the board. Thanks to his rigorous practice techniques,
he's confident that his mind has already internalized the ideal
moves. Garry Kasparov, the chess grand master, obsessively studied
his past matches, looking for the slightest imperfection, but
when it came time to play a chess game, he said he played by instinct,
"by smell, by feel."
- But here's the catch: while dopamine neurons get excited by
predictable rewards—they increase their firing when the juice
arrives after the loud tone that heralded it—they get even more
excited by surprising ones. According to Wolfram Schultz, such
unpredictable rewards are typically three to four times more exciting,
at least for dopamine neurons, than rewards that can be
predicted in advance. (In other words, the best-tasting juice is
the juice that was most unexpected.) The purpose of this dopamine
surge is to make the brain pay attention to new, and potentially
important, stimuli. - Instead of getting bored by the haphazard payouts, the
dopamine neurons become obsessed. When you pull the lever
and get a reward, you experience a rush of pleasurable dopamine,
precisely because the reward was so unexpected, because
your brain cells had no idea what was about to happen. The
clanging coins and flashing lights are like a surprise squirt of
juice. Because the dopamine neurons can't figure out the pattern,
they can't adapt to the pattern. The result is that you are transfixed
by the slot machine, riveted by the fickle nature of its
payouts. - The danger of random processes—things like slot machines
and basketball shots—is that they take advantage of a defect
built into the emotional brain. Dopamine neurons get such a visceral
thrill from watching a hot player sink another jumper or
from winning a little change from a one-armed bandit or from
correctly guessing the placement of a food morsel that our brains
completely misinterpret what's actually going on. We trust our
feelings and perceive patterns, but the patterns don't actually
exist. - The danger of the stock market, however, is that sometimes
its erratic fluctuations can actually look predictable, at least in
the short term. Dopamine neurons are determined to solve the
flux, but most of the time there is nothing to solve. And so brain
cells flail against the stochasticity, searching for lucrative patterns.
Instead of seeing the randomness, we come up with imagined
systems and see meaningful trends where there are only
meaningless streaks. "People enjoy investing in the market and
gambling in a casino for the same reason that they see Snoopy
in the clouds," says the neuroscientist Read Montague. "When
the brain is exposed to anything random, like a slot machine
or the shape of a cloud, it automatically imposes a pattern onto
the noise. But that isn't Snoopy, and you haven't found the secret
pattern in the stock market." - Even professional money managers are vulnerable to this bias and tend to
hold losing stocks twice as long as winning stocks. Why does
an investor do this? Because he is afraid to take a loss—it feels bad—and selling shares that have decreased in value makes the
loss tangible. We try to postpone the pain for as long as possible;
the result is more losses. - Loss aversion is an innate flaw. Everyone who experiences
emotion is vulnerable to its effects. It's part of a larger psychological
phenomenon known as negativity bias, which means that,
for the human mind, bad is stronger than good. This is why in
marital interactions, it generally takes at least five kind comments
to compensate for one critical comment. - There's no rational reason for
us to treat gains and losses or compliments and criticisms so differently.
But we do. The only way to avoid loss aversion is to
know about the concept. - Because the emotional parts of the brain reliably undervalue
the future—life is short and we want pleasure now—we
all end up spending too much money today and delaying saving
until tomorrow (and tomorrow and tomorrow). - The message of the chorus is simple: you can't always
get what you want, but sometimes not getting what you want is
just what you need.
- The problem with
panic is that it narrows one's thoughts. It reduces awareness to
the most essential facts, the most basic instincts. This means that
when a person is being chased by a fire, all he or she can think
about is running from the fire. - Once he realized that his fear had exhausted
its usefulness—it told him to run, but there was nowhere to
go—Dodge was able to resist its primal urges. Instead, he turned
to his conscious mind, which is uniquely capable of deliberate
and creative thought. While automatic emotions focus on the
most immediate variables, the rational brain is able to expand
the list of possibilities. As the neuroscientist Joseph LeDoux says,
"The advantage [of the emotional brain] is that by allowing evolution
to do the thinking for you at first, you basically buy the
time that you need to think about the situation and do the most
reasonable thing." And so Dodge stopped running. If he was going
to survive the fire, he needed to think. - "People who are more rational don't
perceive emotion less, they just regulate it better."
How do we regulate our emotions? The answer is surprisingly
simple: by thinking about them. The prefrontal cortex allows
each of us to contemplate his or her own mind, a talent
psychologists call metacognition. We know when we are angry;
every emotional state comes with self-awareness attached, so
that an individual can try to figure out why he's feeling what he's
feeling. If the particular feeling makes no sense—if the amygdala
is simply responding to a loss frame, for example—then it can
be discounted. The prefrontal cortex can deliberately choose to
ignore the emotional brain. - Instead, Aristotle argued that one of the critical functions
of the rational soul was to make sure that emotions were
intelligently applied to the real world. "Anyone can become angry—
that is easy," Aristotle wrote. "But to become angry with the right person, to the right degree, at the right time, for the
right purpose, and in the right way—that is not easy." That requires
some thought. - If the emotional brain is the audience, constantly sending
out visceral signals about its likes and dislikes, then the prefrontal
cortex is the smart executive, patiently monitoring emotional
reactions and deciding which to take seriously. It is the
only brain area able to realize that the initial dislike of Seinfeld
was a reaction to its originality, not to its inherent funniness. The
rational brain can't silence emotions, but it can help figure out
which ones should be followed. - But when you encounter a problem you've never experienced before,
when your dopamine neurons have no idea what to do, it's essential
that you try to tune out your feelings. Pilots call such a
state "deliberate calm," because staying calm in high-pressure
situations requires conscious effort. "Maintaining our composure
was one of the hardest things we had to do," Haynes says.
"We knew we had to focus and think straight, but that's not always
so easy." - The pilots dealt with this potential information overload by
quickly focusing on the most necessary bits of data. They were
always thinking about what they should think about, which let
them minimize potential distractions. - Once the plane was within twenty miles of the Sioux City airport,
about twelve minutes from touchdown, the captain started
to concentrate on executing the landing. He deliberately ignored
everything else. According to Predmore, the ability of the flight
crew to successfully prioritize their tasks was a crucial ingredient
of their success.
- What causes choking? Although it might seem like an amorphous
category of failure, or even a case of excess emotion, choking
is actually triggered by a specific mental mistake: thinking
too much. The sequence of events typically goes like this: When
a person gets nervous about performing, he naturally becomes
extra self-conscious. He starts to focus on himself, trying to make
sure that he doesn't make any mistakes. He begins scrutinizing
actions that are best performed on autopilot. - The pitcher concentrates too much on his motion
and loses control of his fastball. The actor gets anxious
about his lines and seizes up onstage. In each of these instances,
the natural fluidity of performance is lost. The grace of talent
disappears. - The more time the beginner spends thinking
about the putt, the more likely he is to sink the ball in the
hole. By concentrating on the golf game, by paying attention to
the mechanics of the stroke, the novice can avoid beginners' mistakes. - A little experience, however, changes everything. After a
golfer has learned how to putt—once he or she has memorized
the necessary movements—analyzing the stroke is a waste of
time. The brain already knows what to do. It automatically computes
the slope of the green, settles on the best putting angle, and
decides how hard to hit the ball. In fact, Beilock found that when
experienced golfers are forced to think about their putts, they hit
significantly worse shots. "We bring expert golfers into our lab,
and we tell them to pay attention to a particular part of their
swing, and they just screw up," Beilock says. "When you are at a
high level, your skills become somewhat automated. You don't
need to pay attention to every step in what you're doing." - The part of the brain that monitors behavior—a network
centered in the prefrontal cortex—starts to interfere with
decisions that are normally made without thinking. It begins second-
guessing the skills that have been honed through years of
diligent practice. The worst part about choking is that it tends
to be a downward spiral. The failures build on one another, and a stressful situation is made even more stressful. - A follow-up study found that instead of thinking about the mechanical details of
the swing, experienced golfers should focus on general aspects of their intended
movement, what psychologists call a holistic cue word. For instance, instead of contemplating
something like the precise position of the wrist or elbow, the player
should focus on a descriptive adjective, such as smooth or balanced. An experimental
trial demonstrated that professional golfers who used these holistic cues did far
better than golfers who consciously tried to control their strokes. - While reason is a powerful cognitive tool, it's dangerous to rely exclusively
on the deliberations of the prefrontal cortex. When the rational
brain hijacks the mind, people tend to make all sorts of
decision-making mistakes. They hit bad golf shots and choose
wrong answers on standardized tests. They ignore the wisdom
of their emotions—the knowledge embedded in their dopamine
neurons—and start reaching for things that they can explain.
(One of the problems with feelings is that even when they are accurate,
they can still be hard to articulate.) Instead of going with
the option that feels the best, a person starts going with the option
that sounds the best, even if it's a very bad idea. - There is such a thing as too much analysis. When you overthink at the wrong moment, you cut yourself off
from the wisdom of your emotions, which are much better at assessing
actual preferences. You lose the ability to know what you
really want. - A recent study found that when a person travels
more than one hour in each direction, he or she has to make 40
percent more money in order to be as "satisfied with life" as a
person with a short commute. - "We have these general beliefs about the
world—for example, that cheaper products are of lower quality—
and they translate into specific expectations about specific
products," said Shiv. "Then, once these expectations are activated,
they start to really impact our behavior." The rational
brain distorts the sense of reality, so the ability to properly assess
the alternatives is lost. Instead of listening to the trustworthy
opinions generated by our emotional brains, we follow our own
false assumptions. - These experiments suggest that, in many circumstances, we
could make better consumer decisions by knowing less about the
products we are buying. When you walk into a store, you are
besieged by information. Even purchases that seem simple can
quickly turn into a cognitive quagmire. - a person should choose a jam with his or her prefrontal cortex. But this method
can backfire. When we spend too much time thinking in the supermarket,
we can trick ourselves into choosing the wrong things
for the wrong reasons. That's why the best critics, from Consumer
Reports to Robert Parker, always insist on blind comparisons.
They want to avoid the deceptive thoughts that corrupt
decisions. The prefrontal cortex isn't good at picking out jams or
energy drinks or bottles of wine. Such decisions are like a golf
swing: they are best done with the emotional brain, which generates
its verdict automatically. - Because working memory and rationality share a common
cortical source—the prefrontal cortex—a mind trying to remember
lots of information is less able to exert control over its
impulses. The substrate of reason is so limited that a few extra
digits can become an extreme handicap. - Other studies have shown that a slight drop in blood-sugar levels can also inhibit
self-control, since the frontal lobes require lots of energy in
order to function. - This research can also help explain why we get cranky when we're hungry and
tired: the brain is less able to suppress the negative emotions
sparked by small annoyances. A bad mood is really just a rundown
prefrontal cortex. - The same thing happens when people sit down to dinner:
they tend to eat whatever is on their plates. If the plate is twice as
large (and American serving sizes have grown 40 percent in the
last twenty-five years), they'll still polish it off. - The brain relies on mental accounting because it has such
limited processing abilities. As Thaler notes, "These thinking
problems come from the fact that we have a slow, erratic CPU
[central processing unit] and the fact that we're busy." Since the
prefrontal cortex can handle only about seven things at the same
time, it's constantly trying to "chunk" stuff together, to make the
complexity of life a little more manageable. Instead of thinking
about each M&M, we think about the scoops. Instead of counting
every dollar we spend, we parcel our dollars into particular
purchases, like cars. We rely on misleading shortcuts because we
lack the computational power to think any other way. - The problem is that the rational brain isn't good at disregarding
facts, even when it knows those facts are useless. - Being exposed to extra news was distracting, and the high-information students quickly
became focused on the latest rumors and insider gossip. (Herbert
Simon said it best: "A wealth of information creates a poverty of
attention.") As a result of all the extra input, these students engaged
in far more buying and selling than the low-information
group. They were convinced that all their knowledge allowed
them to anticipate the market. But they were wrong. - The prefrontal cortex can handle only so much information at any one time, so when a person gives it too many facts and then asks it to make a
decision based on the facts that seem important, that person is
asking for trouble. He is going to buy the wrong items at Wal-
Mart and pick the wrong stocks. We all need to know about the
innate frailties of the prefrontal cortex so that we don't undermine
our decisions - This is the danger of too much information: it can actually
interfere with understanding. When the prefrontal cortex is overwhelmed,
a person can no longer make sense of the situation.
Correlation is confused with causation, and people make theories
out of coincidences.
- On most psychological
tests, psychopaths appear perfectly normal. The working memory
isn't impaired, they use language normally, and they don't
have reduced attention spans. In fact, several studies have found
that psychopaths have above-average IQs and reasoning abilities.
Their logic is impeccable. But this intact intelligence conceals
a devastating disorder: psychopaths are dangerous because
they have damaged emotional brains. - "You know when you see a scared face in a movie and
that makes you automatically feel scared, too? Well, psychopaths
don't feel that. It's like they don't understand what's going on.
This lack of emotion is what causes their dangerous behavior.
They are missing the primal emotional cues that the rest of us
use as guides when making moral decisions." - When you are confronted with an ethical dilemma,
the unconscious automatically generates an emotional
reaction. (This is what psychopaths can't do.) Within a few milliseconds,
the brain has made up its mind; you know what is
right and what is wrong. These moral instincts aren't rational but they are an essential part of
what keep us all from committing unspeakable crimes. - It's only at this point—after the emotions have already made
the moral decision—that those rational circuits in the prefrontal
cortex are activated. People come up with persuasive reasons to
justify their moral intuition. When it comes to making ethical
decisions, human rationality isn't a scientist, it's a lawyer. This
inner attorney gathers bits of evidence, post hoc justifications,
and pithy rhetoric in order to make the automatic reaction seem
reasonable. But this reasonableness is just a façade, an elaborate
self-delusion. Benjamin Franklin said it best in his autobiography:
"So convenient a thing it is to be a reasonable creature,
since it enables one to find or make a reason for everything one
has a mind to do." - This is why psychopaths are so dangerous: they are missing
the emotions that guide moral decisions in the first place. There's
a dangerous void where their feelings are supposed to be. For
people like Gacy, sin is always intellectual, never visceral. As a
result, a psychopath is left with nothing but a rational lawyer
inside his head, willing to justify any action. Psychopaths commit
violent crimes because their emotions never tell them not to. - The evolution of morality required a whole new set of decision-
making machinery. The mind needed to evolve some structures
that would keep it from hurting other people. Instead of
just seeking more pleasure, the brain had to become sensitive to
the pain and plight of strangers. - Moral emotions existed long before Moses.
They are writ into the primate brain. Religion simply allows us
to codify these intuitions, to translate the ethics of evolution into
a straightforward legal system. Just look at the Ten Commandments. - At its core, moral decision-making is about sympathy. We abhor
violence because we know violence hurts. We treat others fairly
because we know what it feels like to be treated unfairly. We reject
suffering because we can imagine what it's like to suffer. - Feeling sympathetic is not as simple as it might seem. For
starters, before you can sympathize with the feelings of other
people, you have to figure out what they are feeling. This means
you need to develop a theory about what's happening inside their
minds so that your emotional brain can imitate the activity of
their emotional brains. Sometimes, this act of mind reading is
done by interpreting facial expressions. Of course, you don't always have access to a
communicative set of facial expressions. When you talk on the
phone or write an e-mail or think about someone far away, you
are forced to mind read by simulation, by imagining what you
would feel in the same situation. - "As we have no immediate experience of
what other men feel," Smith wrote, "we can form no idea of the
manner in which they are affected, but by conceiving what we
ourselves should feel in the like situation." This mirroring process
leads to an instinctive sympathy for one's fellow man - But here's the lovely secret of altruism: it feels good. The brain is designed so that acts of charity are pleasurable; being nice to
others makes us feel nice. - When they chose to give away the money, the reward
centers of their brains became active and they experienced the
delightful glow of unselfishness. In fact, several subjects showed
more reward-related brain activity during acts of altruism than
they did when they actually received cash rewards. From the
perspective of the brain, it literally was better to give than to
receive. - Unlike people with autism,
psychopaths can readily recognize when others are upset or in pain. Their
problem is that they can't generate corresponding emotions, since their amygdalas
are never turned on. The end result is that psychopaths remain preternaturally calm,
even in situations that should make them upset. People with autism, however, don't
have a problem generating emotion. The problem for them is of recognition; they
struggle to decipher or simulate the mental states of others. - According to Slovic, the problem with statistics is that they
don't activate our moral emotions. The depressing numbers leave
us cold: our minds can't comprehend suffering on such a massive
scale. This is why we are riveted when one child falls down a
well but turn a blind eye to the millions of people who die every
year for lack of clean water. And why we donate thousands of
dollars to help a single African war orphan featured on the cover
of a magazine but ignore widespread genocides in Rwanda and
Darfur. As Mother Teresa put it, "If I look at the mass, I will
never act. If I look at the one, I will." - We are
designed to feel one another's pain so that we're extremely distressed
when we hurt others and commit moral transgressions.
Sympathy is one of humanity's most basic instincts, which is why
evolution lavished so much attention on mirror neurons, the
fusiform face area, and those other brain regions that help theorize
about other minds. As long as a person is loved as a child and doesn't suffer from any developmental disorders, the human
brain will naturally reject violence and make fair offers and try
to comfort the crying child. This behavior is just a basic part of
who we are. Evolution has programmed us to care about one
another.
- They discovered that when a subject was first exposed
to an object, his nucleus accumbens (NAcc) was turned on. The
NAcc is a crucial part of the dopamine reward pathway, and the
intensity of its activation was a reflection of desire for the item. If
the person already owned the complete Harry Potter collection,
then the NAcc didn't get too excited about the prospect of buying
another copy. However, if he had been craving a George
Foreman grill, the NAcc flooded the brain with dopamine when
that item appeared. - But then came the price tag. When the experimental subject
was exposed to the cost of the product, the insula and prefrontal
cortex were activated. The insula produces aversive feelings and
is triggered by things like nicotine withdrawal and pictures of
people in pain. In general, we try to avoid anything that makes
our insulas excited. This includes spending money. The prefrontal
cortex was activated, scientists speculated, because this rational
area was computing the numbers, trying to figure out if the
product was actually a good deal. The prefrontal cortex got most excited during the experiment when the cost of the item on display
was significantly lower than normal. - You don't look at
the electric grill or box of chocolates and perform an explicit
cost-benefit analysis. Instead, you outsource much of this calculation
to your emotional brain and then rely on relative amounts
of pleasure versus pain to tell you what to purchase. Whichever emotion you feel most intensely tends to dictate your shopping decisions. It's like an emotional
tug of war. - According to Bartels, the reason knowing more about politics
doesn't erase partisan bias is that voters tend to assimilate
only those facts that confirm what they already believe. - The
pundits in Tetlock's study, however, distorted the verdicts of their
emotional brains, cherry-picking the feelings they wanted to follow.
Instead of trusting their gut feelings, they found ways to
disregard the insights that contradicted their ideologies. When
pundits were convinced that they were right, they ignored any
brain areas that implied they might be wrong. - This suggests that
one of the best ways to distinguish genuine from phony expertise
is to look at how a person responds to dissonant data. Does he
or she reject the data out of hand? Perform elaborate mental
gymnastics to avoid admitting error? - Tetlock notes that the best pundits are willing to state their
opinions in "testable form" so that they can "continually monitor
their forecasting performance." He argues that this approach
makes pundits not only more responsible—they are forced to
account for being wrong—but also less prone to bombastic convictions,
a crucial sign that a pundit isn't worth listening to. - The only way to counteract the bias for certainty is to encourage
some inner dissonance. We must force ourselves to think
about the information we don't want to think about, to pay attention
to the data that disturbs our entrenched beliefs. When
we start censoring our minds, turning off those brain areas that
contradict our assumptions, we end up ignoring relevant evidence. - The same lesson can be applied to the brain: when making
decisions, actively resist the urge to suppress the argument. Instead,
take the time to listen to what all the different brain areas
have to say. Good decisions rarely emerge from a false consensus.
- "Use your conscious mind to
acquire all the information you need for making a decision. But
don't try to analyze the information with your conscious mind.
Instead, go on holiday while your unconscious mind digests it.
Whatever your intuition then tells you is almost certainly going
to be the best choice." - Anyone who is
constantly making difficult decisions, from corporate executives
to poker players, can benefit from a more emotional thought
process. As long as someone has sufficient experience in that domain—
he's taken the time to train his dopamine neurons—then
he shouldn't spend too much time consciously contemplating the
alternatives. The hardest calls are the ones that require the most
feeling. - It is the easy problems—the mundane math
problems of daily life—that are best suited to the conscious
brain. These simple decisions won't overwhelm the prefrontal
cortex. In fact, they are so simple that they tend to trip up the
emotions, which don't know how to compare prices or compute
the odds of a poker hand. (When people rely on their feelings in such situations, they make avoidable mistakes, like those due to
loss aversion and arithmetical errors.*) Complex problems, on
the other hand, require the processing powers of the emotional
brain, the supercomputer of the mind. This doesn't mean you
can just blink and know what to do—even the unconscious
takes a little time to process information—but it does suggest
that there's a better way to make difficult decisions. When choosing
a couch, or holding a mysterious set of cards, always listen to
your feelings. They know more than you do. - Just because traders
had nervous hands, or frightened amygdalas, didn't mean they
were acting "irrationally." Rather, Lo discovered that the traders
made the worst decisions when their emotions were either silent
or overwhelming. In order to make the right investment decisions, the mind needs emotional input, but those emotions need
to exist in a dialogue with rational analysis. Investors who got
too worked up or who tried to rely on logic alone tended to make
dramatic mistakes. "One of the implications of our experiments,"
Lo says, "is that strong emotional reactions to financial
gains or losses can actually be counterproductive. On the other
hand, too little emotional reaction can also be dangerous. There's
an ideal range of emotional responses that professional securities
traders seem to exhibit, and that's an insight that we think individual
investors can benefit from." The best investors, like the
best poker players, are able to find that crucial mental balance.
They constantly use one brain system to improve the performance
of the other. - The rational parts of the brain are uniquely able
to monitor feelings, using the reins of cognition to keep the
horses from running wild. Ironically, it's those moments when
emotions seem most persuasive—when the brain is completely
convinced that it's time to go all in—that you should take a little
extra time to reflect on the emotional decision. Make yourself
consider alternative possibilities and scenarios. This is why the
Israeli intelligence services added yet another analytical branch
after the Yom Kippur War. "If the game seems simple or obvious,
then you've made a mistake," Binger says. "The game is
never simple. You've always got to wonder: what am I missing?" - SIMPLE PROBLEMS REQUIRE REASON. There isn't a clear
line separating easy questions from hard ones, or math problems
from mysteries. Some scientists, such as Ap Dijksterhuis, believe
that any problem with more than four distinct variables overwhelms
the rational brain. Others believe that a person can consciously
process somewhere between five and nine pieces of information
at any given moment. With practice and experience,
this range can be slightly expanded. But in general, the prefrontal
cortex is a sharply constrained piece of machinery. If the emotional
brain is a fancy laptop, stuffed full of microprocessors
operating in parallel, the rational brain is an old-fashioned calculator. - So how can anyone reliably identify the simple problems that are best suited for the prefrontal cortex?
The best way is to ask yourself if the decision can be accurately
summarized in numerical terms. For example, since most vegetable
peelers are virtually identical, not much is lost when the various
peelers are sorted by price. In this case, the best choice is
probably the cheapest: let the rational brain take over. - If the decision doesn't
matter all that much, the prefrontal cortex should take the time
to carefully assess and analyze the options. - And should anyone really
choose an apartment or a car based on a single variable, such as
the monthly rent or the amount of horsepower? As Dijksterhuis
demonstrated, when you ask the prefrontal cortex to make these
sorts of decisions, it makes consistent mistakes. You'll end up
with an ugly couch in the wrong apartment. It might sound ridiculous,
but it makes scientific sense: Think less about those
items that you care a lot about. Don't be afraid to let your emotions
choose. - NOVEL PROBLEMS ALSO REQUIRE REASON. Before you
entrust a mystery to the emotional brain, before deciding to let
your instincts make a big bet in poker or fire a missile at a suspicious
radar blip, ask yourself a question: How does your past
experience help solve this particular problem? Have you played
poker hands like this before? Seen blips like this before? Are
these feelings rooted in experience, or are they just haphazard
impulses?
If the problem really is unprecedented—if it's like a complete
hydraulic failure in a Boeing 737—then emotions can't save you. - Stop and think and let your working memory tackle the dilemma.
The only way out of a unique mess is to come up with a creative
solution, like Al Haynes did when he realized that he couldn't
steer the plane in the ordinary way but that it was possible to
steer the plane with the thrust levers. Such insights require the
flexible neurons of the prefrontal cortex. - Mark Jung-Beeman, the scientist who studies the neuroscience
of insight, has shown that people in good moods are significantly
better at solving hard problems that require insight
than people who are cranky and depressed. (Happy people solve
nearly 20 percent more word puzzles than unhappy people.) He
speculates that this is because the brain areas associated with executive
control, such as the prefrontal cortex and the ACC, aren't
as preoccupied with managing emotional life. In other words,
they aren't worrying about why you're not happy, which means
they are free to solve the problem at hand. The end result is that the rational brain can focus on what it needs to focus on, which
is coming up with a solution for the unprecedented situation that
you've found yourself in. - EMBRACE UNCERTAINTY. Hard problems rarely have easy
solutions. There is no single way to win a poker hand, and there
is no guaranteed path to making money in the stock market. Pretending
that the mystery has been erased results in the dangerous
trap of certainty. You are so confident you're right that you neglect
all the evidence that contradicts your conclusion. - There are two simple tricks to help ensure that you never let
certainty interfere with your judgment. First, always entertain
competing hypotheses. When you force yourself to interpret the
facts through a different, perhaps uncomfortable lens, you often
discover that your beliefs rest on a rather shaky foundation. - Second, continually remind yourself of what you don't know.
Even the best models and theories can be undone by utterly unpredictable
events. Poker players call these "bad beats," and
every player has stories about the hands he lost because he got
the one card he wasn't expecting. - YOU KNOW MORE THAN YOU KNOW. One of the enduring
paradoxes of the human mind is that it doesn't know itself
very well. The conscious brain is ignorant of its own underpinnings,
blind to all that neural activity taking place outside the
prefrontal cortex. This is why people have emotions: they are
windows into the unconscious, visceral representations of all the
information we process but don't perceive - The reason these emotions are so intelligent is that they've
managed to turn mistakes into educational events. You are constantly
benefiting from experience, even if you're not consciously
aware of the benefits. - There are no shortcuts to this painstaking process; becoming
an expert just takes time and practice. But once you've developed
expertise in a particular area—once you've made the requisite
mistakes—it's important to trust your emotions when
making decisions in that domain. It is feelings, after all, and not
the prefrontal cortex, that capture the wisdom of experience. - And yet, this doesn't mean the emotional brain should always
be trusted. Sometimes it can be impulsive and short-sighted. Sometimes
it can be a little too sensitive to patterns, which is why
people lose so much money playing slot machines. However, the
one thing you should always be doing is considering your emotions,
thinking about why you're feeling what you're feeling. In
other words, act like the television executive carefully analyzing
the reactions of the focus group. Even when you choose to ignore
your emotions, they are still a valuable source of input. - THINK ABOUT THINKING. If you're going to take only one
idea away from this book, take this one: Whenever you make a decision, be aware of the kind of decision you are making andthe kind of thought process it requires. - The best way to make sure that you are using your
brain properly is to study your brain at work, to listen to the argument
inside your head.
- The best decisions emerge when a
multiplicity of viewpoints are brought to bear on the situation.
The wisdom of crowds also applies in the cockpit. - The rational brain (the pilot)
and the emotional brain (the cockpit computers) exist in perfect
equilibrium, each system focusing on those areas in which
it has a comparative advantage. The reason planes are so safe,
even though both the pilot and the autopilot are fallible, is that
both systems are constantly working to correct each other. Mistakes
are fixed before they spiral out of control.