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Elise Hu
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Elise Hu
You're listening to TED Talks Daily where we bring you new ideas to spark your curiosity every day. I'm your host, Elise Hunter. Emotions can be a lot to handle. They can be messy and complicated and inconvenient. But we also really can't live without them. For political psychologist Cindy Kam, our feelings are integral to our survival and to the way we engage with the world. She's fascinated with a particularly potent Disgust and how it's both personal and political. In her 2024 talk, Cindy explores the meanings behind our emotions, why we must decide when to let emotions take the driver's se and when it's time to take the wheel ourselves. Coming up.
Cindy Kam
Cicadas emerge every 13 years. You may remember the noise they made. It was deafening. You may remember the slime they left on the bottom of your shoes. How about how they tasted? Anybody remember that? Well, members of my family do My daughter was curious about how they would taste. So one day she went out, gathered a whole bunch, washed them, deep fried them, seasoned them, and offered them so kindly to her family as a snack. My teenage son, my husband, even my 79 year old dad, they were all game to try. It doesn't taste like chicken, I hear. But me? No, thank you. Something made me shrink away from that very kind offer of a snack. I don't think it was the fully rational part of my brain. Instead, it was a visceral gut reaction. That visceral gut reaction is the emotion of disgust. So let's talk about the emotion of disgust and its role in our decision making. Each of us have occasions where we have a disgust reaction emerge. These reactions are automatic, but what we do with them is not. Now you can think of disgust as being ready to be roused and to be in the driver's seat of your decision making. Where will it steer us? And should we let it? Or sometimes should we tell it to get in the backseat and let other thoughts and emotions take the wheel? Let me start by noting that disgust is one of many factors that influence our decision making. They say we make 35,000 decisions a day, too many for us to spend very much time hemming and hawing over them. Psychologist John Barge coined this the automaticity of everyday life. Now, emotions are among these forces that underlie our decision making. Emotions can be helpful on a social level. Emotions help us very quickly and efficiently communicate what we are thinking and feeling to others and enable us to very quickly encode what others are thinking and feeling. On a cultural level, emotions help to reinforce values, norms and identities. Emotions are universal, that is, they cross time, space, people and societies around the world. But what triggers them often is culturally constructed. So let's talk about disgust. What triggers that? Well, disgust is a basic emotion, which means it emerges as a basic physiological response. You can see it in someone's face, the puckering of the lips and the closing of the nostrils, as if to ward the body off from potential contaminants. And that's what disgust is. It's when we seek to reject contact with an object, an entity, a practice, a person that we think may be impure. Disgust begins with the body, but disgust extends beyond the body to the soul and the social order. Now, anyone with a one year old probably knows that the disgust reaction is not innate. Disgust emerges around the age of two or three, when children are potty trained. So even though disgust is universal, experienced around the world, across time, in societies of people around the World, we have to be taught what is disgusting. That occurs through cultural enculturation and through experience. The thing about disgust is that it's adaptive and it can lead to protection. So evolutionary psychologists talk about disgust as an adaptive physiological response. Tens of thousands of years ago, humans lived in small bands of hunter gatherer societies. Imagine you're one of these hunter gatherers on an everyday basis, you may be out there and your job for today is gathering berries. There may have been an occasion where you had a red berry and then you didn't feel so good afterwards. And ever since then, now you avoid those red berries. You see them and your stomach turns. You say, no way, I'm not going to do that. That's conditioned taste aversion. Conditioned taste Aversion is an evolutionarily adaptive physiological mechanism. Our bodies orient us away from those objects we associate with illness or disease. So disgust is adaptive. It can lead to protection and connection. Now, disgust also operates not just on evolutionary scale, but in politics. So in 1906, Upton Sinclair published his novel the Jungle. You may recall the Jungle for its graphic descriptions of the Chicago meatpacking industry. Through the Jungle, readers learned what went into the sausage, and it wasn't what they expected. They learned that the chicken sold in tins on their neighborhood shelves might actually be beef hearts or other organs. Or worse, they learned that a worker could trip and fall into a vat of lard that ended up on their neighborhood shelves. Now, Upton Sinclair actually intended for his novel to be an expose of exploitative working conditions. He is famously famous for having remarked, I aimed at the public's heart, and by accident I hit it in the stomach. And boy, did he. The American public was disgusted, and they demanded protection. President Teddy Roosevelt ordered two separate investigations, and within four months of the publication of the Jungle, two landmark laws were passed which remain the pillars of our current food safety system. So disgust can lead to protection. I've looked at this connection between disgust and protection in everyday contemporary politics. In my work, I've thought about disgust sensitivity, an individual trait where people vary in how likely they are to feel disgusted. We measure disgust sensitivity with a set of questions developed by psychologists, which include things like how disgusting would you find it if you went to take a sip of milk only to find that it was spoiled? Or how disgusting would you find it if you went to take your trash out and you saw maggots on a piece of rotting meat? A couple things about these first, they're not political, they're personal. Second, they're everyday not momentous. And third, people vary in how they respond to them. Some people find the scenarios in these questions extremely disgusting. So for them, it's like disgust is shouting through a megaphone. Some people shrug and say they're not disgusting at all. And for them, if disgust speaks, it's in a whisper. And for others, they're somewhere in the middle. And what I found in my research is that this variation in disgust speed sensitivity helps us understand people's views of important public policies. People who are higher in disgust sensitivity than people who are lower in disgust sensitivity are more likely to support policies that they construe as protecting them, protecting their bodies, protecting their soul, or protecting society. So disgust can be protective. Now, the other thing about disgust is that it can actually lead to connection, which is kind of funny because disgust is an avoidance emotion. We seek to avoid whatever we think is contaminating. In my research, I've looked at the relationship between disgust sensitivity and public opinion demand for policies. I found that disgust can actually push people, even those who are political opponents, in a similar direction. So for some of this, these are policies on the left, such as support for more government spending on the food safety system. People who are more disgust sensitive want to see more government spending on securing the nation's food safety. There are also connections between disgust sensitivity and public opinion that are less on the nose, if you will. As I mentioned, what triggers disgust is often culturally constructed. And so some political discourse has connected disgust laden rhetoric with particular stigmatized groups. And so disgust sensitivity can also lead people to intolerance for these groups and to support exclusionary policies. Now, I've also found a connection between disgust sensitivity and public opinion on disease. First, this was BC before COVID @ the time, I was looking at what seemed to be very far away and very distant outbreaks, Zika and Ebola. And for those outbreaks, I found that people who are higher in disgust sensitivity, they wanted to see government doing more to protect the country from outbreaks. They refused to travel to places with outbreaks, and they wanted to close the borders to those traveling from places with outbreaks. This occurred even though Ebola and Zika were barely politicized, and it occurred across party lines. So in this way, disgust sensitivity pulled people in the same direction, regardless of where their political alliances stood. You can also think of this in the context of eating cicadas. So you and I may disagree on many issues, but for some of you, we may be in agreement that we'd rather not eat cicadas. And if we talked a little bit more, we Might find that we were in agreement about avoiding some other behaviors that we jointly deem as potentially contaminating. And if we talked even more, we might find that there is actually some common ground between us in support for policies that we jointly construe as protecting us from contamination. So in this way, disgust can lead to protection, but also connection. It's surprising because as I mentioned, disgust is an avoidance emotion. Now, there are also nuanced implications of disgust. As much as disgust is really fascinating, can lead to protection and connection, I also want to mention that it can be fueled by imagination and potentially steer us in the wrong direction. So imagine I were to offer you a fine piece of chocolate made from the finest ingredients possible, handcrafted by world class artisans. Sounds pretty good. But what if it happened to have an unfortunate shape? Would we still want it? Why do we shrink away from a perfectly innocent piece of chocolate that happens to take an unfortunate shape? That's imagination. So disgust can be triggered whether the contaminant is real or imaginary. You can think of disgusting as a security system that's ready to go off, eager to go off, eager to protect us, but that can be misinformed. So the sympathetic law of similarity, it runs on imagination. It imparts the objectionable qualities of one object to something that looks like it. That's imagination. That occurs with, say, conditioned taste aversion. I mentioned conditioned taste aversion as evolutionarily adaptive. Now, that was helpful tens of thousands of years ago, but it still exists in our physiological architecture today. I'm sure many of us have experienced this. I myself, for example, went to a fast food restaurant, felt sick as a dog for 24 hours afterwards, and to this day have refused to go to that restaurant in that location as well as any location in the entire world, because I associate that place with having felt sick. This is the nature of conditioned taste aversion, Helpful at evolutionary scale, but fueled probably by imagination. And so my children will tell you that this irrational conditioned taste aversion is holding me back from having a perfectly fine meal with my family. Think also about my reluctance, perhaps your reluctance to eating cicadas as well. Did you know that 2 billion people around the world rely on insects as a food source? In a world where we need to be mindful of the global footprint of our protein sources, Might disgust be holding us back from doing my part, our part, for the planet and for humanity? So, to sum up, emotions are among the many factors that influence our decision making, and disgust is a particularly potent one at that. Disgust is ready to participate and even drive your decision making, and it can lead us to protection and it can even lead us to connection with political opponents. But disgust also entertains imagination and can steer us in the wrong direction as well, holding us back from reaching other goals. So the next time disgust emerges for your decision making, maybe in 13 years, when it's your turn to eat steps, deep fried cicadas, or maybe, and probably sooner than that, I hope you'll remember that our disgust reactions are automatic, but what we do with them is not. It's up to you to decide if you want disgust to be in the driver's seat of your decision making, or if you want to push it to the back seat and let other thoughts and emotions take the wheel. Thank you.
Elise Hu
That was Cindy Kam at TEDx Nashville in 2024. If you're curious about Ted's curation, find out more@ted.com curationguidelines and that's it for today's show. TED Talks Daily is part of the TED Audio Collective. This episode was produced and edited by our team, Martha Estefanos, Oliver Friedman, Brian Greene, L. Lucy Little, Alejandra Salazar and Tonsika Sarmarnivon. It was mixed by Christopher Faizy Bogan. Additional support from Emma Tobner and Daniela Balaurazo. I'm Elise Hu. I'll be back tomorrow with a fresh idea for your feed. Thanks for listening.
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Episode Overview
In the April 1, 2025 episode of TED Talks Daily, hosted by Elise Hu, political psychologist Cindy Kam delves into the powerful emotion of disgust and its profound influence on our political decisions. Kam explores how disgust not only shapes individual choices but also plays a significant role in the broader political landscape, fostering both protection and unexpected connections among diverse groups.
Cindy Kam opens her talk with a personal anecdote illustrating the visceral nature of disgust:
"My daughter was curious about how they [cicadas] would taste... something made me shrink away from that very kind offer of a snack." [02:45]
This story sets the stage for her exploration of disgust as an automatic emotional response that can significantly influence our actions and beliefs.
Kam defines disgust as a basic emotion characterized by a physiological response aimed at rejecting potential contaminants. She emphasizes that while the expression of disgust is universal, the triggers are often culturally constructed.
"Disgust is when we seek to reject contact with an object, an entity, a practice, a person that we think may be impure." [05:10]
She explains that disgust reactions begin in the body—puckering lips and wrinkling noses—but extend to the soul and social order, influencing how we interact with the world around us.
Highlighting the evolutionary significance of disgust, Kam discusses how this emotion has historically protected humans from harm:
"Disgust is adaptive. It can lead to protection and connection." [07:25]
She cites the concept of conditioned taste aversion, where individuals avoid foods that previously made them ill, as an example of disgust's protective role. This mechanism ensured early humans steered clear of harmful substances, enhancing survival.
Kam transitions to the political implications of disgust, illustrating its power with the example of Upton Sinclair’s The Jungle:
"I aimed at the public's heart, and by accident I hit it in the stomach." [10:55]
Sinclair's graphic portrayal of the meatpacking industry elicited public disgust, leading to significant legislative changes that improved food safety standards. This underscores how disgust can drive societal protection measures.
Kam introduces the concept of disgust sensitivity, a trait varying among individuals that influences their reactions to disgusting stimuli. Through her research, she reveals that higher disgust sensitivity correlates with greater support for protective public policies, such as enhanced food safety measures.
"People who are higher in disgust sensitivity are more likely to support policies that they construe as protecting them, protecting their bodies, protecting their soul, or protecting society." [13:40]
Interestingly, she notes that disgust can also foster connections across political divides when individuals share mutual disgust towards certain threats, leading to unified support for protective measures irrespective of political affiliations.
Contrary to its nature as an avoidance emotion, Kam explains that disgust can facilitate social connections:
"Disgust can push people, even those who are political opponents, in a similar direction." [15:15]
For instance, both liberals and conservatives might agree on avoiding behaviors deemed contaminating, such as consuming cicadas, thereby finding common ground in their shared disgust.
Kam cautions that while disgust can protect, it can also be misled by imagination, leading to irrational fears and prejudices. She illustrates this with conditioned taste aversion:
"Disgust can be triggered whether the contaminant is real or imaginary... It can steer us in the wrong direction, holding us back from reaching other goals." [17:00]
Using her personal experience of avoiding a fast-food restaurant after feeling ill, Kam highlights how misplaced disgust can prevent individuals from making rational decisions, such as embracing sustainable food sources like insects—a practice essential for reducing our global ecological footprint.
Kam wraps up her talk by emphasizing the importance of consciously managing disgust responses:
"Our disgust reactions are automatic, but what we do with them is not. It's up to you to decide if you want disgust to be in the driver's seat of your decision making, or if you want to push it to the back seat and let other thoughts and emotions take the wheel." [18:10]
She encourages listeners to recognize when disgust is influencing their decisions and to assess whether it serves their best interests or hinders progress toward more sustainable and inclusive goals.
Cindy Kam's insightful exploration of disgust reveals its dual role in both protecting individuals and shaping political landscapes. By understanding the triggers and effects of disgust, individuals can better navigate their emotional responses and make more informed, conscious decisions.
Notable Quotes
Speaker's Background
Cindy Kam is a renowned political psychologist whose research focuses on the interplay between emotions and political behavior. Her work sheds light on how basic emotions like disgust influence public opinion and policy support, offering valuable insights into the emotional underpinnings of political decision-making.
This episode of TED Talks Daily provides a comprehensive understanding of how the seemingly simple emotion of disgust can have complex and far-reaching effects on both personal choices and the broader political environment. Cindy Kam's analysis encourages listeners to reflect on their own emotional responses and consider the balance between instinctual reactions and deliberate decision-making.