Advertising Research: For a long time, recall and recognition were considered the benchmarks for advertising success. But now, brain research is revealing new insights: The surest path to the customer’s wallet lies through their unconscious memory. A paradigm shift in advertising effectiveness research: Until now, it seemed clear that consumers process advertising messages more or less consciously and then behave accordingly. But this theory is no longer supported by new research findings. Social role patterns and everyday behaviors are learned through a variety of observational and assimilation processes. The spontaneous reaction to a commercial recommending the frequent use of a particular brand of vinegar or a specific type of dentures, however, is something fundamentally different. So why should the process by which advertising works be similar to the learning of social patterns?
Against this backdrop, something about the traditional theories of advertising effectiveness seems off. The very premise is flawed: When you learn something, you sit down and make a conscious effort to learn. Even if you don’t feel like it, you still have to at least try.
With advertising, however, it’s the other way around: it never works because people want to see it, but only because they don’t want to see it. The skill of advertisers lies precisely in getting people to look—even against their will. Learning theory, on the other hand, suggests that influence through advertising in media follows the classic stimulus-response model: The consumer learns the message, weighs the arguments, and then makes a purchasing decision. But how is someone supposed to learn and weigh arguments that don’t interest them at all?
Learning from Patients with Amnesia
Brain research provides the explanation. In the 1970s, scientists made an unexpected discovery that they initially couldn’t quite make sense of: They found that patients with amnesia—that is, memory loss resulting from severe brain injuries—were able to learn new skills without remembering how to solve the task. For example, if the patients were asked to solve a puzzle, they did so. The next day, although they could no longer remember the task, they solved the problem faster than the day before. On the third day, they completed the task even faster—again, without recognizing it.
These studies by neuroscientists showed that patients with amnesia store information—without a conscious memory of it—that has a lasting influence on their behavior. These findings can also be applied to research on the effectiveness of advertising. This is because the practical experience of market and media researchers, as well as marketing and advertising professionals, points in a similar direction: there are campaigns for which strong effects can be expected. These are not necessarily the campaigns in which traditional effectiveness indicators, such as brand recall or ad recall, achieve high scores. There are also strong effects without favorable indicators.
How does it work? Advertisers have long relied on various psychological factors—such as catchy melodies, humor, and identification—to
To ensure strong recall or good recognition of advertising campaigns. All of this is well known in the field of memory psychology. The key term is implicit memory (see box): We are guided not only by conscious (explicit) memory but also by unconscious, implicit memory. This implicit memory has also been identified in healthy individuals as a factor that influences many behaviors and impressions. These include the perception of the volume of spoken words, the appeal of products, the popularity of names, and the memorability of advertisements.
Eric Kandel, the American-Austrian Nobel laureate and neurobiologist, deciphered the molecular processes underlying memory in the 1990s. He was able to demonstrate that experiences and memories interact throughout a person’s life. This can also be explained physiologically: All data consciously processed by the brain is first recorded in a brain region called the hippocampus. From there, it is transmitted to the cerebral cortex and stored—precisely at the location where the perceived stimulus was originally processed.
So there is a part of the brain that is responsible both for recognizing a familiar face and for storing a face that is still unfamiliar. Perception and memory take place in the same location. And for this reason, experience and memory also influence each other.
Automated Knowledge
Much of what a person knows is not conscious to them. Once you have learned to drive a car or play tennis, you perform the corresponding movements automatically, without thinking about them. This implicit memory by no means applies only to motor skills. Human perception, too, is largely stored in implicit memory: objects are recognized automatically. This process does not involve the hippocampus, which is responsible for storing conscious or explicit memories.
This brings us back to patients with amnesia—people with impaired explicit memory. One notable case involves a patient who was in a bicycle accident at the age of nine. The brain injuries led to such severe epileptic seizures that part of his temporal lobe and hippocampus had to be removed. Although the seizures stopped afterward, the patient suffered from memory loss: He could still recall all his experiences prior to the operation. He was also able to retain information for a very short time. However, he could no longer transfer short-term information into his long-term memory. As a result, immediately after eating, he would forget that he had just eaten and ask for food. Or, for example, he would recognize himself in childhood photos but not in the mirror.
One can conclude from this that people store a great deal of information automatically and unconsciously, and that this mechanism apparently takes place in the brain independently of the process of conscious memory. This is the key insight for research on the effectiveness of advertising.
Three aspects of implicit memory are important for advertisers: First, implicit memory relates more to people’s behavior than to what they can recall. Second, implicit memory is completely independent of conscious memory. And third, emotional reactions are closely linked to implicit memory. There is strong evidence that people’s emotional responses to words, images, or advertising materials arise independently of conscious memory in the conventional sense. Feelings can therefore be based entirely on implicit memory.
Incidentally, it has been found that implicit memory is highly sensitive to perceptual characteristics such as colors, fonts, or size.
Even forgotten ads are effective
Based on these findings, it can be concluded that using memory and recognition as criteria for determining the likelihood of advertising success is hardly suitable in advertising effectiveness research. This is because the influence of unconscious exposure cannot be overestimated. Studies have shown that product favorability depends heavily on unconscious recall.
Research on implicit memory is very similar to studies on subliminal advertising. These studies have shown that when images were presented subliminally, the participants were not able to identify them any better. However, when asked to decide which images were more attractive, they consistently chose the ones that had already been presented to them subliminally.
The same result was observed in tests conducted by Tim Perfect and Sue Heatherley of the University of Bristol on behalf of the Financial Times using print ads that the test subjects had viewed as completely normal but subsequently forgotten. It turned out that ads can influence consumers’ feelings toward the advertised product, even if they do not recognize it as something they have seen before. Advertising messages evidently have an impact—especially on emotional judgments—even when they are not consciously recognized. Advertising motifs that are seen but then forgotten are nevertheless perceived later as more appealing, memorable, and distinctive. The likelihood of an emotional preference is independent of whether the ad is consciously recognized or not.
Perfect and Heatherley concluded: «Measurements of advertising effectiveness that rely solely on conscious recall may underestimate the effectiveness of advertising materials or campaigns; for it is possible that an advertisement may not be recalled but still have unconscious effects.»
Implicit memory is more susceptible to other factors than explicit memory. Therefore, anyone who wants to influence the unconscious attitudes of their target audience must also take into account those elements in their advertising that facilitate strong implicit memory, rather than focusing exclusively on ensuring that their ad is consciously remembered.
Implicit Memory: First, the cerebral cortex processes all sensory stimuli. The key point is that a person remembers such perceptions even when they are not consciously aware of them. Researchers refer to this as implicit memory.
Implicit memory has two components: 1. Procedural information: e.g., swimming, riding a bike, climbing stairs; 2. Priming: all information derived from unconscious perception. With its help, for example, words read only briefly can be grasped more quickly through «guessing.».
In order to enter consciousness at all, sensory stimuli must be transmitted to the hippocampus. It determines which information becomes part of explicit memory. Explicit memory is responsible for conscious recall and also consists of two parts: episodic memory stores personal experiences and the associated emotions; semantic memory stores facts, information, and knowledge.
Emotionally appealing subjects generate positive feelings regardless of conscious memory.
High-pressure sales pitches run the risk of neglecting emotional memory cues.
Wolfgang J. Koschnick