Do Certain Sounds Enrage You? Neurologists May Know Why

iStock
iStock

If the sound of a co-worker repeatedly clicking his pen can send you into a flaming furor, take heart: You’re not being hypersensitive, and you’re not alone. Neurologists in the UK have spotted physical differences in the brains of people with this sound-related rage, although whether these differences are the cause or the result of the disorder remains to be seen. The scientists published their findings in the journal Current Biology.

The technical term for that noise-triggered irritation and rage is misophonia (“hatred of sound”). People who have it experience uncontrollable and intense negative emotions after hearing certain repetitive noises like chewing, lip-smacking, pen-clicking, and foot-tapping.

It’s a relatively new concept within the medical community, although people have been complaining of symptoms for a long time. To those who’ve never experienced misophonia, it may sound silly or made-up—which is what many doctors have concluded. Others have categorized it as a form of anxiety or obsessive-compulsive disorder.

The authors of the current paper wondered if the problem might not be psychological but neurological. They recruited 20 British adults with misophonia and 22 without, and gave them all questionnaires to gauge their responses to various noises. Then they put each participant inside MRI and fMRI machines and played them all sorts of noises, including the benign (a kettle whistling, rain), the universally unpleasant (a baby crying, someone screaming), and common misophonia triggers (breathing, chewing).

As the researchers suspected, the results for the two groups looked very different. People with misophonia had more myelin, or insulation, around the gray matter in their prefrontal cortex. They also showed abnormal connections between this cortex and the anterior insular cortex, which is involved in processing information and emotions.

Hearing the trigger noises caused a spike in activity in both cortices for people with misophonia. For people without it, activity only increased in the prefrontal cortex. The trigger sounds also provoked a clear stress response in people with misophonia. Their heart rates increased and they began sweating.

Lead researcher Sukhbinder Kumar is a neuroscientist at Newcastle University and University College London. He says his team’s research should reassure people with misophonia and validate the condition’s existence to their doctors.

“Patients with misophonia had strikingly similar clinical features, and yet the syndrome is not recognized in any of the current clinical diagnostic schemes,” he said in a statement. “This study demonstrates the critical brain changes as further evidence to convince a skeptical medical community that this is a genuine disorder."

It also suggests a possible way of treating the condition. “My hope is to identify the brain signature of the trigger sounds,” Kumar said. “Those signatures can be used for treatment such as for neuro-feedback, for example, where people can self-regulate their reactions by looking at what kind of brain activity is being produced."

Save Up to 80 Percent on Furniture, Home Decor, and Appliances During Wayfair's Way Day 2020 Sale

Wayfair
Wayfair

From September 23 to September 24, customers can get as much as 80 percent off home decor, furniture, WFH essentials, kitchen appliances, and more during the Wayfair's Way Day 2020 sale. Additionally, when you buy a select Samsung appliance during the sale, you'll also get a $200 Wayfair gift card once the product ships. Make sure to see all that the Way Day 2020 sale has to offer. These prices won’t last long, so we've also compiled a list of the best deals for your home below.

Rugs

AllModern/Wayfair

- Mistana Hillsby Power Loom Beige Saffron/Teal Rug $49 (save $97)

- Wrought Studios Shuff Abstract Blue Area Rug $100 (save $105)

- All Modern Lydia Southwestern Cream/Charcoal Area Rug $49 (save $100)

- Union Rustic Gunter Power Loom Blue/Khaki Rug $22 (save $38)

- Willa Arlo Interiors Omri Oriental Light Gray/Ivory Area Rug $49 (save $149)

Furniture

Langley Street/Wayfair

- Alwyn Home 14-inch Medium Gel Memory Foam King Mattress $580 (save $1420)

- Andover Mills Pascal Upholstered King Bed Frame $318 (save $832)

- Sol 72 Outdoor 8-Piece Sectional Seating Group with Cushions $650 (save $1180)

- Langley Street Darren 68-Inch Tuxedo Arm Sofa $340 (save $1410)

- Three Posts Tyronza Coffee Table $147 (save $193)

Kitchen

NutriBullet/Wayfair

- Cuisinart 11-Piece Aluminum Non Stick Cookware Set $100 (save $200)

- Rachael Ray Cucina 10-Piece Non-Stick Bakeware Set $92 (save $108)

- NutriBullet Rx Smart 45-Ounce Personal Countertop Blender $124 (save $56)

- Henckels Graphite 13-Piece Knife Block Set $160 (save $340)

- DeLonghi ECP3220 15-Bar Pump Espresso Machine $120 (save $90)

Electronics

Samsung/Wayfair

- Samsung 36-Inch French Door Energy Smart Refrigerator $3600 (save $400)

- Cosmo 30-Inch Freestanding Electric Range Oven $1420 (save $1580)

- Whynter 19-Bottle Single Zone Built-In Wine Refrigerator $380 (save $232)

- bObsweep PetHair Robotic Vacuum Cleaner with Mop Attachment $226 (save $443)

- Rowenta Focus 1700 Iron with Burst of Steam $68 (save $47)

Work From Home Essentials

Foundery Select/Wayfair

- Techi Mobili Adjustable Laptop Cart $50 (save $20)

- Foundry Select Arsenault Farmhouse Desk $210 (save $190)

- Symple Stuff Clay Mesh Task Chair $128 (save $121)

- Three Posts Salina Standard Bookcase $183 (save $617)

- Lorell Hard Floor Chairmat $52 (save $39)

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100 Fascinating Facts About Earth

The best Spaceball.
The best Spaceball.
NASA

Did you know that there’s a place in the South Pacific Ocean called Point Nemo that’s farther from land than any other point on Earth? So far, in fact, that the closest humans are usually astronauts aboard the International Space Station. (And by the way: The map you’re about to look for Point Nemo on might not be entirely accurate; a certain amount of distortion occurs when trying to depict a 3D planet on a 2D surface.)

In this all-new episode of The List Show, Mental Floss editor-in-chief Erin McCarthy is journeying to the center of the Earth, and visiting its oceans, its atmosphere, and even space, in search of 100 facts about our endlessly fascinating planet.

The subjects that fall under the umbrella of “facts about Earth” are nearly as expansive as Earth itself. Geology, biology, astronomy, and cartography, are all fair game—and those are just a few of the many -ologies, -onomies, and -ographies you’ll learn about below. 

Press play to find out more Earth-shattering facts, and subscribe to the Mental Floss YouTube channel for more fact-filled videos here.