Cheese and the Brain: A Fragrant Mystery
October 2017
Smithsonian Magazine

Introduction
Ever wondered why a whiff of blue cheese can send some folks into a frenzy of delight, while others recoil as if they've just sniffed a gym sock? Smithsonian Magazine dives into the deliciously stinky world of cheese and the science of disgust. Neuroscientists are peeking into our brains with fMRI scans, trying to understand why our reactions to pungent cheeses are so polarized. Spoiler alert: It involves a lot of brain circuits and possibly a past life as a cheese hater. Dive into this Ig Nobel-winning research and discover whether you're a cheese lover or a secret cheese despiser. It's a journey through the senses that promises to be as intriguing as it is fragrant!
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The Pungent Puzzle of Palate Pleasers
Imagine being at a party, excited for the feast, only to have your nose twitch at the whiff of a pungent blue cheese. This scenario isn't just about whether you'll enjoy the cheese or not; it's a gateway into the fascinating world of disgust and how our brains react to certain foods. Neuroscientists are diving deep into why some of us salivate while others recoil at the same smells and tastes. This inquiry doesn't just unravel the mysteries of our taste buds but also sheds light on the broader implications of disgust—a primal emotion that influences what we eat, how we socialize, and even our cultural differences. Understanding why stinky cheese can split a room might seem trivial at first, but it's actually a slice of a much larger scientific quest to decode human behavior and preferences. For you, it’s a chance to explore how your own reactions fit into the global tapestry of taste and disgust, and perhaps, to develop a more adventurous palate in the process.
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Olfactory Onslaught
This term describes an intense attack on your sense of smell. In the context of stinky cheese, it refers to the strong odors that challenge your nose.

Neural Basis
The underlying brain structures and functions responsible for a particular psychological phenomenon. When we talk about the neural basis of disgust, we're looking at which parts of the brain light up or turn off when we feel repulsed.

Aversion Behavior
Actions motivated by a desire to avoid something unpleasant. If you're turning your head away from stinky cheese, that's aversion behavior in action.

Contamination Response
A psychological reaction where something undesirable touching a liked object makes the latter repulsive. It’s like the idea of a cockroach touching your food – suddenly, the food becomes disgusting.

Insula Cortex
A region of the brain involved in a variety of functions, including emotion, self-awareness, and the perception of taste and disgust. It plays a key role in how we react to different foods.

Reward Neural Circuit
Parts of the brain that are activated by things we find enjoyable or rewarding. Interestingly, in the context of stinky cheese, this circuit can also show activity related to aversion or disgust.
Independent Research Ideas

Cultural influences on disgust sensitivity
Investigate how different cultures perceive stinky cheese and other polarizing foods. This could reveal how upbringing and cultural background shape our sense of taste and disgust.

The psychology of food aversions
Explore why certain textures, smells, or tastes trigger strong aversions in some people but not in others. This topic straddles psychology, neuroscience, and even genetics.

The evolutionary role of disgust
Delve into how disgust may have evolved to protect humans from pathogens and poisons, using stinky cheese as a case study to understand the balance between cultural preferences and biological instincts.

The impact of social context on food preferences
Examine how social settings and peer influences can alter our perception of taste and disgust. This could involve experimental studies on how 'people’s' opinions on stinky cheese change in different company.

Neuroscience of taste and smell
Dive into the science of how our brain processes tastes and smells, using stinky cheese as a springboard to explore the complex interaction between olfactory and gustatory systems.
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