| Consumers Eric Arnould,
University of Nebraska George Zinkhan,
University of Georgia Linda Price,
University of Nebraska
Perception: Worlds of Sensation
eLearning Session- Learning Objectives
After completing this chapter, you should be able to: - Explain the meaning of and relationship between perceptions and sensations
and discuss some basic facts about the classic five sensory receptors: vision,
smell, hearing, touch and taste.
- Describe how sensory thresholds are used by marketers, including marketing
applications of Weber's Law.
- Outline the process through which our sensory systems select, organize
and interpret stimuli, including pre-attentive processing; perceptual selection;
organization and categorization; interpretation and elaboration.
- Describe some basic tools consumers use in primitive categorization, including
grouping, figure, and ground, and develop marketing applications using these
three tools.
- Explain how elaboration of marketing stimuli influences consumer perceptions
and preferences.
- Define some basic features of perceptual preferences and consumer tastes.
- Chapter Overview
- Perception is a process of giving meaning to sensory stimuli. People act
and react on the basis of their perceptions, the way they sense
and interpret the world around them.
- Consumers' perceptions are fundamental to understanding acquisition, consumption,
and disposal of goods and services. The symbols used in language and writing,
in marketing communication in all its forms, gain concrete meaning by reference
to perceptions. Hence, in a very basic way, perceptions underlie preferences.
When consumers order curry chicken for dinner or buy silk lingerie or listen
to Nine Inch Nails or select Magie Noire as their evening fragrance or refuse
to buy plaids even when plaids are the fashion statement for the year, they
reflect their sensory preferences-sights, sounds, tastes, smells, and feelings
that they like over other sensations. Of course, culture, family, friends,
motivations, experience, and a myriad of other factors influence these sensory
preferences.
- Effective use of marketing communication, packaging, design of consumer
food products, creation of "servicescapes" and retail environments involves
sophisticated understanding and management of sensation and perception.
- The study of perceptions is a basic way to try to understand consumers.
When we speak of the perception of quality, risk, or perceived value, we
are clearly talking about something that refers to perception, although
the actual sensations at the root of these judgments may seem far away,
transformed by judgment, thought and logic. Nevertheless, sensation is an
important ingredient of consumer learning and decision making.
- Underlying both meanings of perception (i.e., the immediate sense of delight
in the taste of something sweet versus the judgment that the colors in a
gown do or do not go together) is sensation, the immediate and
direct response of the sensory systems to stimuli. Sensations vary between
persons, social groups, and cultures.
- In this chapter we examine the cultural, social, psychological, and physiological
bases of perception. Perception is closely related to needs, motivation
and involvement (Chapter 11); experience, learning and knowledge (Chapter
12); and decision making and attitude formation (Chapter 13).
- The Subjective Nature of Perception
- Sensation and Sensory Thresholds
Sensory stimuli are inputs to the senses. People detect stimuli through a
variety of sensory receptors. These are the organs of perception. Although
we may think of them in terms of the classic five (vision, smell, hearing,
touch, and taste), it turns out that our organs or perception are more numerous
and specialized than this. Indeed, some researchers suggest that there are
as many as 32 different sensory systems. While recognizing the diversity of
our perceptual apparatus, we nonetheless organize our discussion of sensation
around the five traditional systems. - Sensory Systems and Marketing Effects
- There is a debate about whether sensations are autonomic responses
(i.e., automatic neural responses) or learned responses (i.e.,
the product of enculturation). This issue is important for marketers because
they may rely on simple physical stimuli to produce certain responses
in consumers.
- Vision
- Human eyes have separate mechanisms that gather the light, pick out
an important or novel image, focus it precisely, pinpoint it in space,
and follow it. Seventy percent of the body's sense receptors cluster
in the eyes.
- Because vision is a dominant sense in humans, it has been studied
in great detail and more is known of it than the other senses. Studies
find that exposure to warm hues (red-orange-yellow) raises blood pressure,
heart rate, and perspiration, whereas exposure to cool hues (green-blue)
has the opposite effect.
- Color can play an important role in affecting the success of marketing
stimuli, such as the colors used in advertising or package design. Colors
that stimulate excitement appear whitish, as if the color white had
been mixed in to create a pastel effect. Colors that evoke relaxation
are fully saturated. That is, they have a high level of pigment in them.
Much of the research on the role of color in marketing is anecdotal.
In brief, marketers frequently find that they don't have firm foundations
for making decisions about color, even though they realize that such
decisions are quite important.
- Smell
- The sense of smell is less important for humans than many other animals.
Smells tend to be described in terms of how they feel emotionally (e.g.,
"disgusting""delightful").
- Smell is the most direct of our senses. Nothing is more memorable
than a smell.
- The relationship between odors, thoughts, and behaviors is not a simple
one. Odor greatly affects our evaluation of things and people. Odor
also affects consumer responses in a multitude of other ways. For example,
people are more alert in a room with a light, pleasant smell. As marketers
seek to tap consumers' feelings and memories directly, aromachology
and the home fragrance industry has become a growing aspect of the economy.
- Sometimes odors are used as a way of communicating product attribute
information, such as with perfume or house cleaners. However, marketers
have become interested in the notion that pleasant scents that are not
necessarily related to the products being sold can also affect consumer
feelings, thoughts and behaviors.
- Hearing
- Sound is an onrushing, cresting and withdrawing wave of air molecules
that roll to our ears, where they make the eardrum vibrate and move
the three tiniest bones in the body.
- What people hear occupies a large range of intensities. People have
a surprising ability to move some sounds to the almost unnoticeable
rear and drag others right up front.
- Sound patterns can create a mood of relaxation or stimulation.
- Touch
- Our skin stands between the world and us, and it serves many functions.
It protects us and envisions us. Most of all, it harbors the sense of
touch. There are many complex sensations that constitute touch, and
various parts of the body are much more sensitive than others. In language,
there are many metaphors for touch. We call our emotions "feelings,"
and we care most deeply when something "touches" us. Touch affects the
whole organism.
- Touch is critical in the psychological and physical development of
children. Sustained touching reduces heart rate and has a calming effect.
- Taste
- What people eat suggests the powerful role of culture in determining
taste.
- Taste is also an intimate sense. As Consumer Chronicles 9.3 illustrates,
how people taste things may be as individual as fingerprints. Every
culture uses food as a sign of approval or commemoration. Food is a
big source of physiological and emotional pleasure in our lives.
Consumer Chronicles 9.3: The Taste of Olive Oil (50.0K) - Taste buds are exceedingly small, and adults have about 10,000 grouped
by theme (salt, sour, sweet, bitter), at various sites in the mouth.
In fact, a food's flavor includes its texture, smell, temperature, color,
and painfulness (as in spices), among many other features.
- In the United States there is a growing segment of health-conscious
consumers who are concerned about the cholesterol and the fat content
of the foods they eat. At the same time, there is a segment of consumers
who indulge and prefer foods high in fat, those are rich and savory
as possible (see Consumer Chronicles 9.4).
Consumer Chronicles 9.4: A Sensory Preference for Fatty Foods (50.0K)
- Sensory Thresholds
- Sensation is provoked, not by some unit of sensation, but by changes
in sensory input. It's these differences in input that we perceive. Several
differences in input, or sensory thresholds, are important in marketing;
these include the absolute threshold, and the differentialthreshold,
or the just noticeable difference.
- Absolute Threshold
- Weber's Law and the JND
- Another important sensory threshold is the just noticeabledifference
(JND), or differential threshold. This conveys the idea of the
minimum change in sensation necessary for aperson to detect
it. Note that JND differs from "absolute threshold" in that the
former focuses on changes in sensations, not minimum sensation.
- Any first time touch or change in touch (from gentle to stinging,
say) sends the brain into a flurry of activity. However, an additional
dose of stimulus at the same level results in a much lower level of
excitation of sensory preceptors. To explain this phenomenon,
a theorem known as Weber's Law states that the stronger the
initial sensory stimulus, the greater the additional intensity needed
for the second stimulus to be perceived as different. A corollary
of this theorem is that an additional level of stimulus equivalent to
the JND must be added for the majority of people to perceive a difference
between the resulting stimulus and the initial stimulus.
- The most important implication of Weber's Law for marketers is the
necessity of determining the JND to optimize any changes in the marketing
mix. Sometimes it will be optimal to introduce stimuli or changes in
the marketing mix that are equal to the JND. In this case, the challenge
for marketers is to determine the amount of change necessary in a given
component of the marketing mix, in particular marketing environments
for particular market segments. Change less that the JND is wasted because
it is not perceived.
- According to Weber's Law, the level of a just noticeable difference
will depend on the strength of the initial stimulus.
- Sometimes a marketer's objective is to change the product without
the consumer noticing. In this case, the key is to stay just below
a noticeable difference.
- Often, firms want to introduce changes in products and services that
are not readily discernible to customers, but save the firm money or
else re-position the brand (e.g., reductions in product size, changes
in package design).
- The strategy of downsizing the package or decreasing contents is a
popular way of implementing price increases.
- Packaged-goods marketers frequently change the package design but
usually do so in small stages. As a result, consumers often do not notice
these subtle changes in package design, color, or wording.
- The Perceptual Process
- People think of our senses as windows on the world, but a primary function
of sensory systems is to irrelevant or useless information. As such, our
sensory systems serve as selection systems. Perhaps the most striking trend
in the psychology and physiology of perception in the past two decades is
our increasing understanding of the interactive and constructive nature
of ordinary awareness.
- Our experience of the world involves a wide range of unconscious inferences
about perceptual categories that we create from personal experience. For
example, we cannot immediately know whether a given chair is physically
closer than others because we do not possess a direct monocular sense of
distance. Instead, if we assume that two objects we are looking at are the
same size, then we infer the one that looks larger would be closer to us.
That is, we make a perception about the proximity of the chair based on
our personal constructs or categories.
- The process of perception is divided into four parts:
- pre-attentive processing
- selection
- organization
- interpretation and elaboration
- Pre-attentive Processing
- Perception begins with an exposure to a stimulus. By exposure
we mean that the stimulus is in sufficient proximity to the sensory
receptors that the opportunity exists for sensory activation.
- Pre-attentive processing refers to the simultaneous preconscious
monitoring of all sensory channels for events that will require a shift
inattention. This kind of pre-attentive processing is what
makes it possible for us to suddenly hear our name spoken across a crowded,
noisy room; or wake at the cry of a baby but not a garbage truck.
- Considerable research suggests that preconscious processes operate in
the selection of stimuli for further processing.
- Selection
- There's an extraordinary amount of competition for people's attention
in the marketplace.
- As explained by the principle of sensory thresholds, as the background
becomes more saturated with sensation, people's filters become stronger
and more immune to each individual sensory input.
- Perceptional selection refers to the fact that consumers select
only a small portion of the stimuli to which they are exposed for consciousprocessing,
or what we might term focal attention. To get the consumers' focal
attention, an escalation of sensory impulses is required.
- Merely escalating the intensity of stimuli is likely to be an ineffective
way of cutting through perceptual filters and provoking potential customers
to pay attention. Many poorly targeted direct-mail pieces, for example,
are discarded, unopened and unread. A variety of factors will lead to
increased selection, as we outline in the next several paragraphs.
- Motives
- One of the most important factors influencing selection of stimuli
for further processing is consumers' motives and goals. Consumers' goals
serve to direct their attention to information that is relevant or important
to those goals. This type of need-specific attention is called perceptual
vigilance.
- The idea of perceptual vigilance has important implications for marketers.
For example, producers of radio commercials are advised to include personal
references in their spots. The use of a question format in advertisements
appears to have the capacity to draw attention to a message and thus
engage listeners.
- An important application of perceptual vigilance for marketers is
to target consumers whose needs have changed. During transitional periods,
consumers may be especially attentive to relevant information that addresses
their changing needs.
- Nature of the Stimulus
- Organization
- The third part in the perceptual process is perceptual organization.
Consumers classify perceptions into categories (categorization) and
apply prior knowledge about the categories to organize them. Basically,
categorization involves comparison between a perceived target
and categorical knowledge. Categorization is a fundamental sense-making
activity that encompasses all forms of stimulus situations. Whenever we
intentionally perform any kind of action, say something as ordinary
as drinking a soda, attending a class, or exercising, we are using categories.
Categorization schemes allow people to give coherence to their general
knowledge about other people, objects, and situations.
- A key feature of categories is that they are functional, and, as such,
are shaped by personal goals, values, or the need to respond. Whereas
early research presented categories as relatively stable structures, recent
research emphasizes that categories are influenced by context and by goals
or judgment purposes. The formation of a particular goal also leads people
to create categories to fit that specific goal. Such categories are referred
to as ad hoc categories.
- Different contexts invite people to organize their knowledge structures
differently and create categories appropriate to specific contexts.
- The formulation of a particular goal also leads people to create categories
to fit that specific goal. Such categories are referred to as ad hoc
categories.
- Another key feature of categories is that they are socially and culturally
constructed and learned.
- Categorization operates at different levels of abstraction. In this
section, on organization perceptions, we are interested in some principles
that affect the initial, often automatic, and unconscious categorization
of stimuli. We refer to initial classification of an object into a category
as primitive categorization. To appreciate the problem of primitive
categorization, we need to understand that people derive meaning from
the totality of the perceptual information they receive at a given moment.
Marketers often make use of our human tendency to make sense of perceptual
data through primitive categorization on the basis of partial information.
Three especially common illustrations of this tendency are grouping, figure-and-ground
discriminations, and the closure principal. Each of these shows how, when
presented with ambiguous stimuli, people try to impose familiar categories
on their perceptions.
- Grouping
- Figure-and-ground
- In the second stage of primitive categorization, referred to as figure
and ground, people try to determine what aspects ofstimuli
we should focus on. We tend to place "important" stimuli in the
foreground and move less important stimuli to the background. Classic
figure-and-ground tricks developed by psychologist illustrate how we
may perceive something as foreground, until an alternative perception
is pointed out to us.
- Exhibit 9.1 illustrates the vase/face trick. The figure and ground
will shift back and forth as we attempt to see one element, such as
faces, and then the other, the vase, as foreground. AN interesting aspect
of figure-and-ground problems is that people cannot perceive both objects
as figure simultaneously.
APPLICATIONS OF THE PRINCIPLE OF CLOSURE Exhibit 9.1: A Classic Figure-and-Ground Problem- What Do You See (50.0K) - An interesting aspect of figure-and-ground problems is that we cannot
perceive both objects as figure simultaneously.
- There are many instances of the use of figure-and-ground principles
in marketing. For example, people often say that contrast attracts attention.
But what they are really saying is that a stimulus has forced something
into the foreground that would otherwise have been treated as a background.
- Closure
- The third principle of perceptual organization that illustrates the
consumer's use of partial cues to complete an image is closure. In
radio or television ads, it is not uncommon to repeat a jingle or slogan
several times, and then to leave it incomplete as the advertisement
ends. Advertisers know that the listener will imagine the final bars
of the tune. Through this heightened level of involvement with the ad,
the listener is then more likely to remember the message. Justerini
& Brooks' clever Christmas time ad for J&B Scotch relies on the audience's
tacit know;edge of a popular seasonal song "Jingle Bells" to get them
to fill in the missing letters, and Vin & Spirit employed similar techniques
to promote Schweppes in the ads below.
APPLICATIONS OF THE PRINCIPLE OF CLOSURE - PAGE 324 Image A (718.0K) Image B (718.0K)
- Gestalt Psychology
- Gestalt psychologists are responsible for much of the work on perceptual
organization. These researchers attempt to identify the rules that govern
how people perceive patterns in the world.
- The Gestalt perspective is the study of how individuals make sense
of the stimuli to which they are exposed.
- Interpretation and Elaboration
- The fourth part in the perceptual process is interpretation. Obviously,
organization and interpretation are intertwined. Both have to do with
comprehension and sense making. Whereas the principles of perceptual organization
are most often applied unconsciously, at least part of the time, interpretation
is a conscious process. The interpretation of perceptual stimuli involves
the application of learned associations between perceptual cues, or signs,
and meanings to novel stimuli. Interpretation depends on consumers' knowledge
structures. At least two different sorts of knowledge structures are important
to interpretation.
- At least two different sorts of knowledge structures are important to
interpretation. One type, called schemas, includes organized
collections of beliefs and feelings that a person has about objects, ideas,
people, or situations. The second type of knowledge structure, called
scripts, includes sequences of actions associated with objects,
ideas, people, or situations. Whether we are aware of it or not, knowledge
about cultural roles, settings, goals and event sequences are basic to
interpretation.
- Semiotic Process of Interpretation
- Interpretation comes about through a fundamental semioticprocess
that links three components of every stimulus. The semiotic process
is how people obtain meaning from signs.
- Trademarks, product symbols and even packages can be tremendously
effective product symbols, and ones of great value to firms.
- Perceptual Inferences
- An important aspect of interpretation is perceptual inferences.
Inferences are interpretations that go beyond the information given.
Our understanding of how and when consumers make inferences is still
limited. Yet, we do know that consumers rarely have complete information.
They have to make judgments and purchase decisions about products based
on limited or incomplete information. Frequently, consumers use a small
number of cues to make inferences. Some inferences are made more or
less automatically, and we are largely unconscious of the cues we use
in making them.
- Elaboration
- Sometimes consumer interpretations of perceptual stimuli also includes
high levels of elaboration. Elaboration reflects the extent
to which perceptual stimuli are integrated with prior knowledgestructures.
Interpretation always involves some elaboration (that is, accessing
of prior knowledge structures), but this can be at very low levels such
as simply recognition. At high levels of elaboration, people engage
in processes such as counter arguing, problem solving, daydreaming and
fantasizing.Elaboration produces freedom of memory and attitude
from the specific details of the original message or its setting. It
can even result in a boomerang effect where the attitude change
is opposite to that advocated in the persuasive message.
- Of course, stimuli that encourage elaboration can also be enormously
effective. Such stimuli are likely to be remembered longer and attitudes
formed are likely to be much stronger than those associated with stimuli
processed at a lower level of elaboration. For example, one form of
high elaboration would be role taking. In the context of advertising,
role taking involves placing the self into the ad or product experience.
- Transformational advertising figuratively transforms the viewer
watching the ad. Such transformations are likely only when the viewer
is highly motivated to process the ad and when the ad contains sufficient
ad cues to allow for such a transformation.
- Perceptual Judgments and Marketing Strategies
- Most consumer perception research deals with perceptual interpretation.
- Perceptual judgements begin with selective attention to perceptual stimuli
in the marketing landscape. Through selective exposure and attention consumers
form basic images of brands, products, and marketing communications, for
instance. They draw basic perceptual inferences about the attributes of
these marketing stimuli. Through learning and experience, consumers eventually
form summary perceptual judgments that link the sensory stimuli to outcomes
they consider probable.
- Because consumers use information selectively, marketers must examine
such issues as perceived quality and product country image (PCI) in developing
an understanding of particular consumers' perceptual judgments of particular
market offerings.
- Perceived Quality
- Perceived quality has been a central preoccupation in consumer and organization
marketing. Perceived quality, whether in reference to a product
or service, has been defined as the consumer's evaluative judgment
about an entity's overall excellence or superiority in providing desired
benefits.Perceived quality can reduce costs, extend market
share, increase profitability, and create a differential advantage by
erecting barriers to entry and lessening price elasticity.Research
suggests that customers may care more about quality than economy, and
hence, marketers believe that providing evidence of incremental quality
is a key to competitive advantage.
- Perceived quality is a judgment derived by a comparison of performance
perceptions against expectations or evaluative standards. Consumers use
an array of sensory cues as indicators of quality. Cues are used according
to their predictive value, the degree to which consumers associate
a given cue with product quality, the confidence value of a cue, and the
degree to which consumers have confidence in their ability to use and
judge that cueaccurately. The value of cues varies across product
categories.
- Consumers rely on both extrinsiccues, such as price, brand
name, packaging, store name, country-of-origin and even color, and intrinsiccues
such as taste, texture, and aroma when making product quality. Depending
on the product category, intrinsic cues also have high predictive and
confidence value for consumers.
- Perceived service quality is often measured using the SERVQUAL scale,
which contains five genetic dimensions of perceived quality: tangibles,
reliability, responsiveness, assurance, and empathy. The tangibles
dimension refers to characteristics of the service provider and the service
delivery environment also called the servicescape. Little research
has been conducted on combined product/service quality perceptions despite
the fact that it has long been recognized that much of what is purchased
in the marketplace combines features of products and services.
- Product-Country Image Effects
- Product-country image (PCI) research has mainly studied country oforigin,
or country-of-manufacture, as a cue by consumers to infer beliefs about
product attributes. Country of origin is conveyed through packaging, promotional
materials, ingredients (Kobe or Nebraska corn-fed beef, for example),
and conventional symbols such as national flags. Country-of-origin cues
are like other extrinsic cues such as price, brand name, and retailer
reputation in that they can be manipulated without changing the physical
product. Product-country image also plays a role in judgements about industrial
products. Sometimes, however, product-country image is clouded by confusion
between country-of-origin and country-of-manufacture.
- Provided that the basic criteria for perceptual selection like vividness,
clarity, and intensity are met, consumers' use of country-of-origin cues
is determined by their power to predict positive consumption outcomes.
This predictive relationship is shaped by product-country images (PIC),
which is a schematic mental representation of a country's people, products,
culture, and national symbols. Product-country images contain widely
shared cultural stereotypes, or simplifying categories.
- Consumers' evaluations of country-of-origin are based in part on a match
between product and country. Country-of-origin may relate a product to
national identity, which can result in a strong emotional attachment to
certain brands and products, such as a second-generation immigrant strongly
attached to home country products.
- Product-country image is not merely another cognitive cue, however.
It has symbolic and ritual meaning to consumers. Country-of-origin may
associate a product with status, authenticity, and exoticness. It links
a product to a rich product-country imagery, with sensory, emotional,
and ritual connotations. Country-of-origin may relate a product to national
identity, which can result in a strong emotional attachment to certain
brand and products, such as a second-generation immigrant strongly attached
to home-country products.
- Symbolic aspects of PCI may influence consumer preferences and contribute
to brand loyalty.
- The term consumer voting captures the normative dimension
ofproduct-country images. In other words, by deciding to purchase
or avoid a country's products, consumers "vote" for or against the policies
of its government.
- PCI may also trigger the norm to buy domestically. Some consumers consider
it morally appropriate to buy products that are manufactured or grown
domestically.
- Not all products evoke strong product-country image, and not all consumers
use product-country images in developing product preferences.
- In short, PCI plays a role in judgments of product and brand quality.
The influence of product-country image on behavior varies, but there is
no doubt that it plays a role and that its relative importance may in
fact equal or exceed that of other extrinsic cues depending on situational
and other factors.
- Matters of Taste: Aesthetic Bridges between Goods
- The idea of taste is fundamental to the success of many industries including
architecture, interior design, packaging, and fashion.
- The department stores that emerged in Paris and London at the end of the
nineteenth century were intended as taste-making instruments, designed to
teach and market good taste. American department stores offered for public
consumption both elite consumer lifestyles and democratic consumer lifestyles
promoted by the decorative arts movement.
- In Sweden, the annual IKEA catalog disstributed in August is an anxiously
awaited repository of taste; a corporate effort to limit distribution only
to consumers above a certain income threshold was hotly debated in the national
press.
www.ikea.com - Just about every consumer decision reflects sensory preferences and perceptual
judgments. Often, we refer to differences between consumers in their sensory
preferences as a "matter of taste." Take a moment and imagine what you think
we mean by the term taste. Discussions of taste are closely linked
to perception. We will use the term to refer to the making of judgments
based on ideas of beauty, order, and arrangement.
- There are just a few important general points to make about taste. First,
taste is a culturally specific and historically specific preference for
certain things. Second, taste is not only about raw sensory stimuli. Third,
tastes as a form of cultural capital give us membership in some groups and
exclude us from others. Fourth, each culture has arbitrators of taste, like
Martha Stewart, or the late Princess Diana, who function to define and change
what's tasteful and what's not.
- Consumers often develop their own tastes from elements provided by the
taste-making institutions and perceive consumer goods in terms of them.
Taste is a matter of individual perception and judgment. But at the same
time, taste is part of the social world and helps consumers find their place
in that world.
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