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or why. It’s why a clean house or a well-kept garden makes us feel relaxed,
even at home—when everything is “as it should be,” our brain has an easy
time making sense of the environment, even if it’s a new one. (Remember,
aeons of evolutionary history mean we’re always looking for danger! A clean
environment, with everything in its place, makes it easier for us to get a
handle on what’s out there and makes it safe to let our guard down.)
A number of scientific studies have demonstrated these principles at work. In
one particularly famous study, researchers showed their subjects (who had no
knowledge of the Chinese language) a series of Chinese characters and asked
them to provide an adjective that they thought the character might stand for.
Characters that the subjects had already seen earlier in the study tended to
be attributed adjectives with a more positive connotation than characters the
subjects were seeing for the first time.10
While it seems like a simple enough study, it’s actually rather remarkable that
previous exposure to a character can lead to a discernible and statistically
significant increase in the positivity associated with that character. And this
kind of phenomenon happens regardless of whether the subject recognizes
the object! That’s because we build up this “statistical” awareness unconsciously.
I’ve always been taken by music cognition studies, and they provide some of
the most interesting insights into these kinds of phenomena. A number of
studies have been done to measure how humans internalize the patterns in
the music they hear. 11 From testing infants’ musical expectations by tracking
the movement of their head or eyes, to asking people to sing the note they
think might come next, to having subjects rate how well a note “fits” with a
10Jennifer L. Monahan, Sheila T. Murphy, and R. B. Zajonc, “Subliminal Mere Exposure:
Specific, General, and Diffuse Effects,” Psychological Science 11/6 (2000), 462–66.
11See, for example, Aniruddh D. Patel, Music, Language, and the Brain, Oxford: Oxford
University Press (2008); Huron, Sweet Anticipation; Patrick N. Juslin and John A. Sloboda,
Music and Emotion: Theory and Research, Oxford: Oxford University Press (2001); and the
journal, Music Perception—just to name a few.
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melody, to giving subjects money and asking them to bet on which note will
come next, these studies come at the question from just about every angle.
But they generally come to the same conclusion: humans are really good at
learning patterns through repeated exposure and making predictions and
judgments in accordance with the patterns we learned, even if we can’t explain
the reason behind those judgments.
One study12 presented Western musicians with a melody one note at a time,
but the melody was from a style that was unfamiliar to all of them—Balinese
gamelan music. (If you’ve never heard, or seen, Balinese gamelan music
performed before, find a few videos on YouTube. It’s incredible.) This music
not only follows different rules than Western classical music, pop music, jazz,
blues, country, bluegrass, you name it. It is based on an entirely different
system of scales than Western music. You cannot play Beethoven on a
gamelan, nor could you perform a gamelan piece on a piano. It simply wouldn’t
work. That, plus the musicians’ lack of exposure to the style, made it an
excellent means to test how a human, in this case an expert Western musician,
might approach “learning” a completely new musical style from scratch.
The experimenters played first one note of the gamelan melody and asked
each subject to predict what note they thought most likely to come next. The
guesses were just that: guesses. No better than chance at predicting the next
note. After two notes, three notes, still fairly wild guesses. But as the melody
progressed, and the subjects had more context for their predictions, their
predictions improved. To be clear, they were not learning the rules of the
musical style. In fact, they missed some core elements of the musical style
completely. But they were learning the statistics of the style, the basic
tendencies and proportions. After hearing enough of the melody, if the melody
so far had more C’s than E-flats, they would predict C more often than E-flat.
And by the end of the melody, though they weren’t exactly gamelan experts,
their predictive powers were noticeably better than chance.
This ability to learn patterns quickly, with detail, and unconsciously is a core
part of our humanity. It’s a large part of how we learned our first language. We
weren’t born with an English gene, or a Japanese gene, or a Farsi gene. We
didn’t sit down at the blackboard for lessons on how to move the lips, jaw, and
tongue to say “mama” or “dada.” We are born with a genetic predisposition
to learn, and our brain hones in on the patterns we hear most often and does
all it can to emulate them—and to improve upon our ability to emulate them.
The ability to make predictions and evaluations based on those patterns is
also part and parcel to being human—even leading to our deepest flaws,
including responding negatively, even violently, to the unfamiliar. Our racism,
sexism, homophobia, transphobia, xenophobia, … they all stem from a
12Huron, Sweet Anticipation, pp. 53–55.
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negative reaction to the unfamiliar, and our ancient association of the unfamiliar
with danger and threat.
Now, of course there are other factors in how we appraise things. As discussed
previously, the associations our brains have formed over time, as we have
repeatedly engaged things in context (rather than in an experiment), also play
a huge role. But all things being equal, familiarity, even unconscious familiarity,
leads to a more positive appraisal of an object, a person, or an idea.
This core psychological principle forms the basis of much practice in advertising.
Think of product placement. The subtle inclusion of a product in a film or
television show, often paid for just like a commercial, by making that product
slightly more familiar, slightly more preactivated, primes you to appraise it
more positively when deciding whether or not to purchase it in the future.
They might hit you over the head with it—like Reese’s Pieces in the movie
E.T.—or it might be more subtle—like the label on the can of soda sitting on
the edge of the table just inside the frame—but the principle remains the
same: repeated engagement leads to positive appraisal, all other factors being
equal.
One wildly successful example from the world of advertising is the white
Apple earbud.13 Part of the marketing around the iPod itself was its small size,
even its hideability (“1,000 songs in your pocket”). The iPod couldn’t fulfill its
own identity as a stealthy device while also being its own marketing campaign—
“Look at that! I must have one!” However, at that point in time, white earbuds
were extremely rare. By bequeathing a pair of standout white earbuds with
every ne
w iPod (and later, iPhone), the device could keep its low profile,
tucked away in every listener’s pocket, while the earbuds could play the
marketing game.
Apple capitalized on this with its visual advertising campaign. Remember the
commercials, posters, and magazine ads with a black silhouette of a person
dancing in front of a background made up of a single, solid, bright color? 14 The
person dancing was always holding an iPod in their hand (also part of the black
silhouette). The only other element in the photo or video was the pair of
Apple earbuds. White. Stark against the black and fuchsia/orange/green. The
visual focal point of the advertisement. The earbuds highlighted in this ad
campaign and the earbuds seen on the street or in the train reinforced each
other, generating a sense of ubiquity and raising the familiarity of the symbol.
Never before had the color of the wire between someone’s ear and their
13Sasha Geffen, “The iPod May Be Dead, but Those Iconic Ads Still Shape the Way We See
Music,” MTV News, published Mary 12, 2016, www.mtv.com/news/2879585/ipod-ads-
in-music-culture/.
14“2003: Apple Releases its Silhouette Campaign for iPod,” The Drum, March 31, 2016,
www.thedrum.com/news/2016/03/31/2003-apple-releases-its-silhouette-
campaign-ipod.
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pocket primed us to think (usually positively) about a specific brand. But by
picking something rare yet visible and reinforcing it with their visual advertising
materials in a way that took advantage of the way our brain works, Apple was
able to do just that.
Now, familiarity itself is no guarantee of a positive response. Those same
white earbuds, once they reach a point of market saturation, can start to
stand out too much. Some people recognize the gimmick. Others simply want
to avoid being like everyone else. And so how much is too much? is a question
advertisers have been asking themselves for decades. A single Superbowl ad
isn’t worth the expensive investment if you have no marketing budget left
afterward. But the same commercial seen during every commercial break of
every show is also counterproductive. Remember that when something is too
familiar, but arrests our attention anyway, the waste of resources can lead to
a negative reaction. Finding the sweet spot (which is different for every
individual) is a major part of the advertising game.15
Also remember that when two things are associated in our memory, activating
one will activate the other at the same time.16 So while repeated exposure to
white earbuds might boost familiarity with both the earbuds and the device
they come with, that only leads to a positive appraisal if you don’t already have
a negative association with the earbuds, the iPod, or the Apple corporation.
This is why after major scandals, companies often rebrand, either renaming a
product or renaming the company altogether.
I imagine you can already see potential implications here for social media and
big data analytics. If seeing something too often is bad, not often enough is
ineffective, and the sweet spot is different for each person, then individualizing
how often someone sees an ad would optimize its effect. Likewise, if
associations in a person’s memory affect the positive or negative appraisal
they have when seeing or hearing something, and if different people have
different associations, then individualizing the content of an ad would likewise
optimize its effect.
Of course, individuals aren’t entirely unique. Though you and I might react
differently to the same ad, we might react similarly enough to someone else
that showing us the same content, on the same schedule, would have more
or less the same effect. And so advertisers have been grouping us together for
ages—single men ages 18–25, tweenage girls from upper-middle-class families,
retired working-class widowers on medicare, city dwellers, suburbanites,
homesteaders, you name it. Marketers divide people into groups based on
demographics, do their market research, and target ads to groups accordingly.
15Erin Richards, “Cognitive Efficiency Determines How Advertising Affects Your Brain,” in
Science 2.0, December 9, 2008, www.science20.com/erin039s_spin/cognitive_
efficiency_determines_how_advertising_affects_your_brain.
16Donald O. Hebb, The Organization of Behavior, New York: Wiley & Sons (1949).
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This is why there are a lot more toy commercials during children’s television
shows than during daytime soap operas, for example.
But TV ads can’t really target as precisely as advertisers might like. Are the
people most likely to buy product X or vote for candidate Y really all watching
the same show at the same time in the same broadcast/cable/satellite market?
Surely our identities are not defined and clustered according to our television
viewing habits, our morning-commute radio preferences, and our magazine
subscriptions!
The internet drastically altered this equation. Web technology allows
advertisers (and purveyors of all kinds of information) to microtarget very
small groups of people—even individuals, if they really know what they’re
doing. (Targeting individuals with ads is forbidden on most major online
platforms, but there are ways around that for the more talented, if less ethical,
information operatives.) If the optimal content and timing is individual, if the
groups of people with similar preferences and associations do not line up with
TV show viewership or commute schedule, then targeting online starts to
make more sense. And in a media environment where every web site visited,
every link clicked, every image or video viewed, every song listened to, every
like, every retweet, every :rage: emoticon is logged and available to advertisers
(at least as filters), well … then we can really start to put our knowledge of
human cognition to work in our marketing practices.
In a world where every “sponsored post” is effectively an advertisement,
advertising is not simply about selling things. It’s about political campaigns. It’s
about journalists and freelance writers promoting their work. It’s about indie
musicians finding an audience. It’s about inventors crowdfunding their
prototypes. Anyone who wants to communicate information or effect human
behavior, and who has the money to support it, can target individuals in finely
grained ways without ever scraping a single bit of data themselves. And in
spite of all the limitations put in place by the platforms, unethical operators
can do some really shady things. (More on that in the chapters to come.)
Summary
Let’s sum up what we’ve learned. The brain is a large and complex information
system, with optimized storage solutions and a powerful predictive analytics
engine. It’s the real intelligence that the best AI systems are still trying to
catch up to. The result of the brain’s optimized information storage and
predictive analytics algorithms is a bottleneck called attention—the small
amount of information we can “think about” at any given tim
e, including
memories and signals from our five senses. Biologically, attention is incredibly
powerful, but also incredibly expensive, and therefore incredibly limited. Over
the course of human evolution, we have evolved processes for prioritizing the
information that makes it into conscious attention, including both hard-wired
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rules by which certain kinds of stimuli will always take priority as well as the
capability to learn new priorities and connections that govern our attention.
One of the main things we learn is statistical frequency (familiarity). Memories
we engage frequently stay “preactivated,” ready for easy access. We also learn
relationships between memories and stimuli, and when we interact with one
thing in our memory, all of the things our brain has related it to will also raise
in their level of activation, making it easier for us to process what we predict.
We also know that, all else being equal, when a perception is easy to process,
we form a positive emotional response. And that unconscious familiarity can
be a powerful driver of positive responses to things we perceive.
Of course, the degree to which something is familiar, whether or not we are
aware of that familiarity, and what associations (positive and negative) we
might have already made with that thing is highly individual. And while
advertisers have been dividing us into groups for decades, and serving up ads
likely to be the most effective for the particular group(s) we belong to, the
optimal solution will be individualized.
But there are a few problems with completely individualized advertising. First,
in order to work, it requires access to tons of data about us as individuals—
much of which we likely view as private. This includes knowledge of what
we’ve seen, heard, smelled, tasted, touched, in what contexts we’ve interacted
with it, and how we reacted to it in those different contexts. Where relevant
data is absent, it requires a means of filling in the gaps (more on that in
Chapter 3). Assuming advertisers have the data needed to manipulate us in
the way they desire, this completely individualized advertising can have effects
on both our behavior and our psychology that were not intended, or even
thought of, by the advertisers. And the effects—both intended and