About Careers Internship MedBlog Contact us
Medindia LOGIN REGISTER
Advertisement

Why We Hate the Sound of Chewing Food or a Pen Clicking Repeatedly

by Bidita Debnath on February 4, 2017 at 11:38 PM
Font : A-A+

 Why We Hate the Sound of Chewing Food or a Pen Clicking Repeatedly

Ever wondered why the sound of people chewing food, breathing off, a pen clicking repeatedly irritate you? It may be because of an abnormality in the emotional control mechanism which causes the brain to go into overdrive on hearing such trigger sounds, say researchers led by one of Indian-origin.

The findings showed that the brains of people with such condition -- known as misophonia or hatred of trigger sounds -- showed a physical difference in the frontal lobe between the cerebral hemispheres -- with higher myelination in the grey matter of ventromedial prefrontal cortex (vmPFC).

Advertisement


"For many people with misophonia, for the first time we have demonstrated a difference in brain structure and function in sufferers," said Sukhbinder Kumar at Newcastle University in Britain.

Further, the study, published in the journal Current Biology, also showed abnormal connections between this frontal-lobe area and an area called the anterior insular cortex (AIC) -- known to be involved in processing emotions and integrating signals both from the body and outside world.
Advertisement

In misophonic participants, the trigger sounds increased activity in both brain areas, while in normal participants, the increase was seen only in the AIC, not in the frontal area.

This reflects an abnormality of a control mechanism between the frontal lobe and AIC, the researchers said.

"We now have evidence to establish the basis for the disorder through the differences in brain control mechanism in misophonia. This will suggest therapeutic manipulations and encourage a search for similar mechanisms in other conditions associated with abnormal emotional reactions," added Tim Griffiths, professor at Newcastle University.

The trigger sound was also found to evoke a heightened physiological response with increased heart rate and sweating in people with misophonia, the researchers noted.

Source: IANS
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
What's New on Medindia
Alarming Cesarean Section Trends in India - Convenience or Compulsion of Corporate Healthcare
Quiz on Low-Calorie Diet for Diabetes
World Heart Day in 2022- Use Heart for Every Heart
View all
Recommended Reading
News Archive
Date
Category
Advertisement
News Category

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Amoebic Dysentery Phimosis/Circumcision Hypospadias Why Do We Eat - Nutrition Facts Diet Lifestyle and Heart Disease Urology Paediatric Emergencies Amyotrophic Lateral Sclerosis (ALS) Hunger Fullness and Weight Control Label Lingo on Food Items: Decoded Chew Your Food Well 

Most Popular on Medindia

Hearing Loss Calculator Find a Doctor Post-Nasal Drip Pregnancy Confirmation Calculator Diaphragmatic Hernia Loram (2 mg) (Lorazepam) Sanatogen Blood Donation - Recipients Turmeric Powder - Health Benefits, Uses & Side Effects Drug Interaction Checker
This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use
×

Why We Hate the Sound of Chewing Food or a Pen Clicking Repeatedly Personalised Printable Document (PDF)

Please complete this form and we'll send you a personalised information that is requested

You may use this for your own reference or forward it to your friends.

Please use the information prudently. If you are not a medical doctor please remember to consult your healthcare provider as this information is not a substitute for professional advice.

Name *

Email Address *

Country *

Areas of Interests