Every human mind is a network of connections. This capacity to link experiences, thoughts, and actions together has been crucial to our survival, helping us navigate the world. But while this ability is undeniably powerful, it can also create biases that distort reality. One of the most pervasive of these biases is association bias—the tendency to link unrelated events, ideas, or objects based on a prior experience. This phenomenon can cloud judgment, skew decisions, and ultimately lead us astray. Let’s look closer at how association bias works in everyday life, from personal habits to major business decisions.

The Power of “Lucky” Objects: Kevin’s Green Polka-Dot Boxers

Kevin’s belief in the power of his green polka-dot boxer shorts is a textbook example of association bias at work. This bias refers to the tendency of our minds to create links between unrelated events, often leading us to believe that one factor causes or influences another, even when there’s no logical connection. For Kevin, the more times he wore the boxers before a successful board meeting, the more he became convinced that the garments played a role in his success. This bias isn’t limited to undergarments—it can extend to various objects or rituals people believe have magical qualities, such as lucky charms, talismans, or specific routines that seem to guarantee success.

The association between Kevin’s success and his boxer shorts wasn’t based on any rational reasoning. It was the repeated coincidence of wearing the same boxers and delivering great presentations that created the illusion of a connection. Kevin’s mind started to believe that the boxers were lucky, and he likely felt a sense of confidence when wearing them, which in turn may have positively influenced his performance. This is an example of the placebo effect at play: even though the boxers themselves had no inherent power, Kevin’s belief in their influence affected his mindset, making him more prepared and confident.

The danger with association bias is that it can lead to superstitions, where we begin to make decisions based on these irrational beliefs. Kevin’s reliance on his boxer shorts could make him dependent on an external, uncontrollable factor to feel successful. If he were to forget his lucky shorts one day, he might feel anxious, which could negatively affect his performance. This false belief is harmless on a personal level, but in broader contexts, such as business or leadership, it can create an environment where people rely on irrelevant factors instead of focusing on preparation and expertise.

Emotional Decisions: The $10,000 Engagement Ring

Kevin’s impulsive decision to purchase a $10,000 engagement ring, far beyond his original budget, serves as a striking example of how association bias can drive emotional decisions. In this case, Kevin associated the beautiful saleswoman with the high-priced ring, imagining that the two were connected in some meaningful way. His mind created a false narrative that buying the ring would somehow tie his future wife to the idealized image he saw in the saleswoman. The ring, in Kevin’s mind, wasn’t just a piece of jewelry—it became a symbol of the kind of woman he wanted to marry or perhaps the kind of life he hoped to lead.

This connection between the product and the salesperson demonstrates how easily emotions override logic when purchasing decisions. Kevin was not evaluating the ring based on its intrinsic value or even the practicality of spending such a large sum. Instead, he allowed his emotions, triggered by the salesperson’s beauty and charm, to cloud his judgment. It wasn’t the product he was interested in—it was what he believed the product represented: a connection to a beautiful, successful, and fulfilling future. The emotional resonance of the moment played a far larger role than the practicality of the decision.

In this situation, the association bias worked to Kevin’s detriment. He spent more money than he could afford on an item that had little real connection to his future wife. In many cases, association bias leads people to make decisions based on perceived emotional connections that have little to do with the actual value or purpose of the product. Marketers know this well and exploit it regularly by pairing products with emotionally charged imagery, aiming to elicit a sense of joy, fulfillment, or excitement in the consumer’s mind, whether or not those emotions are directly related to the product.

Health and Superstition: Kevin’s Check-Up Anxiety

Kevin’s experience with his annual health check-ups offers a vivid example of how association bias can influence our health decisions, sometimes to the point of creating irrational fears. After two relatively minor health scares—one involving a swollen prostate, which turned out to be benign, and the other an appendicitis scare that led to surgery—Kevin began associating hot weather with health problems. Even though there was no scientific basis for this connection, Kevin’s mind created a false association between warm days and medical emergencies.

This is a perfect example of how powerful the mind’s emotional response to past events can be. Kevin’s anxiety during his medical visits was heightened because of the intense emotions he experienced when he learned about his health issues on hot days. Despite the fact that the weather had no impact on his health, his brain started to link the two together. So, every time the temperature began to rise, Kevin’s anxiety would spike, and he would immediately associate it with the possibility of a health scare.

The real danger here is that Kevin’s mental association led him to avoid check-ups altogether when the temperature started to rise. This avoidance behavior is a direct result of association bias and shows how it can distort our perceptions of reality. Kevin is making decisions based on an emotional response rather than the facts at hand. The warmth of the weather doesn’t affect his health, but his mind believes it does, leading him to cancel appointments and avoid seeking medical advice. Overcoming this type of bias would require Kevin to consciously separate the emotional memory of his past experiences from the unrelated trigger of hot weather, which he could only do by recognizing the false link his mind had made.

The Science Behind the Bias: Pavlov’s Dogs and Advertising

The origins of association bias can be traced back to the groundbreaking work of Russian scientist Ivan Pavlov, whose research with dogs helped uncover the mechanisms of conditioned responses. Pavlov originally sought to measure salivation in dogs in response to food, but he discovered that the mere sound of a bell—when repeatedly paired with food—caused the dogs to salivate, even when no food was presented. This response, known as classical conditioning, shows how organisms can form associations between unrelated stimuli.

Pavlov’s work was foundational in understanding how associations are formed in the brain. In the context of human behavior, these associations can shape how we respond to various stimuli, from food to advertisements. When a brand consistently associates itself with positive emotions, like happiness, success, or beauty, our brains begin to form emotional connections with the product, even when there is no logical reason for that connection. This principle is widely used in advertising to persuade consumers to buy products, not based on their quality or utility but based on the emotions they evoke.

For example, Coca-Cola advertisements often feature young, vibrant people in idealized settings, enjoying life’s happiest moments. These images create an emotional link in the consumer’s mind between drinking Coca-Cola and experiencing joy, adventure, or friendship. This association becomes so ingrained that, when people see a Coke, they may unconsciously associate it with happiness and positivity, despite the fact that the drink itself is just a sugary beverage. The real influence of the brand lies in the emotions it evokes, not in the actual product. This is why brands often work so hard to create emotional connections with their audiences—it makes consumers more likely to make a purchase, even if there is no rational reason to do so.

Shoot the Messenger: How Association Bias Shapes Organizational Culture

Association bias can also influence how information is received and acted upon in the workplace, particularly when it comes to the delivery of bad news. The “shoot-the-messenger” syndrome occurs when individuals unconsciously blame the bearer of bad news rather than addressing the substance of the message itself. This bias can create a toxic environment where employees or subordinates are reluctant to share negative information because they fear backlash or retribution.

In a business setting, this can be especially detrimental. If leaders or decision-makers avoid or ignore bad news, they may be left with an incomplete or overly optimistic view of the company’s performance, leading to poor decision-making. Leaders who unconsciously distance themselves from negative feedback may foster a culture of silence, where only positive news is communicated, and critical issues go unaddressed.

The key to overcoming this association bias in organizations is to create a culture of openness where bad news is not only accepted but encouraged. Leaders should make it clear that they value honesty and transparency and that negative feedback is necessary for improvement. By promoting an environment where employees feel safe to share difficult news without fear of retaliation, leaders can ensure they receive a full picture of their organization’s health. This proactive approach can help mitigate the impact of association bias, fostering a culture of truthfulness and continuous improvement.

The Unshakable Fear: George Foster and the Bell

George Foster’s irrational fear of doorbells after surviving a tragic accident is a striking example of how association bias can lead to long-lasting emotional responses that are disproportionate to the initial event. Foster’s accident, which occurred when a faulty doorbell triggered an explosion due to a gas leak in a vacant house, was incredibly rare and unlikely to happen again. However, the emotional impact of the experience was so profound that Foster couldn’t shake the mental connection he had made between doorbells and danger.

This is a powerful example of how the human brain can form lasting associations despite evidence that contradicts the initial experience. Foster’s fear wasn’t based on a rational assessment of the risk; it was a conditioned response triggered by the sound of a doorbell. Despite knowing that the likelihood of a repeat accident was infinitesimally small, Foster could not rid himself of the emotional link he had formed between doorbells and the trauma he experienced. This kind of emotional response can persist long after the original event has passed, influencing behavior in ways that are difficult to reverse.

The unshakable nature of this bias highlights how powerful and enduring emotional associations can be. Even when a person intellectually knows that an event was an anomaly, their emotional reaction can still dominate their behavior, leading them to avoid situations or objects that remind them of the original trauma. This is why it can be so difficult to overcome irrational fears or phobias, as they are often rooted in associations that feel very real despite being based on unfounded or exaggerated links.

Learning from the Cat and the Hot Stove Lid

Mark Twain’s analogy of the cat and the hot stove lid perfectly captures the essence of overcoming association bias. The cat that sits on a hot stove lid will never sit on one again, but it will also avoid sitting on a cold one. This reflects the idea that once we form a negative association, we often generalize it to other situations, even when it’s no longer relevant. Twain’s advice serves as a cautionary tale: while learning from our experiences is important, we must be careful not to carry forward false lessons that limit our future actions.

In the case of association bias, it’s important to recognize when we’re reacting emotionally based on a past experience, rather than making decisions based on current facts. By acknowledging the influence of association bias, we can work to separate the true lessons of an experience from the false associations our minds create. The key to growth is learning to evaluate situations independently without allowing past biases to cloud our judgment. Recognizing and challenging association bias allows us to make more informed decisions and live a more balanced, rational life.

Conclusion

The association bias reveals our minds’ remarkable connections, sometimes leading to accurate knowledge but often resulting in false associations that shape our perceptions and decisions. From lucky underpants and emotional connections to advertising tactics and shoot-the-messenger syndrome, association bias influences various aspects of our lives. Understanding this bias can challenge our assumptions, scrutinize our associations, and make more rational choices. So, let us navigate the intricate web of associations with a critical eye, extracting wisdom from our experiences while avoiding the pitfalls of distorted perceptions.

This article is part of The Art of Thinking Clearly Series based on Rolf Dobelli’s book.