Why do I Yawn When You Yawn?

04 September, 2017, 06:40 | Author: Darrell Lopez
  • Former US President Barack Obama yawns as he attends the East Asian Summit Plenary Session in 2012

The work with electrical stimulation suggests that the brain's primary motor cortex plays a role in contagious yawning, the researchers said.

Stephen Jackson, professor of cognitive neuroscience at Nottingham University is the study's team leader.

We all do it: We all tend to start yawning when we see, or even hear, someone else yawning.

Next time you try to stifle a yawn, it might be worth discarding polite etiquette by letting your mouth gape for as long as you need because it could help to reveal how smart you are. But a new study takes the yawn research one step further, suggesting that trying to stifle those involuntary stretches only makes the urge to yawn even stronger. In other words, it's an automatic imitation of another person, according to the study, published online today (Aug. 31) in the journal Current Biology.

The findings indicate that a someone's ability to resist yawning when a nearby person yawns is restricted and when a person is instructed to resist yawning, an increasing urge to yawn has been observed.

The researchers showed the participants video clips of people yawning.

Contagious yawns aren't limited to humans. They then noticed that those who were most susceptible to the yawn contagious, were precisely those in which the motor cortex was the most " excitable ".




But anyone trying to stifle their yawns at a particularly boring work meeting or date is fighting a losing battle, scientists have found.

"These findings may be particularly important in understanding the association between motor excitability and the occurrence of echophenomena in a wide range of clinical conditions linked to increased cortical excitability and decreased physiological inhibition such as epilepsy, dementia, autism, and Tourette syndrome", Professor Stephen Jackson was quoted while talking about the same.

The full paper "A neural basis for contagious yawning" is can be read on the University of Nottingham's website.

TMS was used to quantify motor cortical excitability and physiological inhibition for each participant and predict the propensity for contagious yawning across all the volunteers.

In a separate experiment, the researchers tested this idea and found that mild electrical brain stimulation increased excitability to the motor cortex. "In Tourette's, if we could reduce the excitability we might reduce the ticks and that's what we are working on", Prof Jackson said. "We are looking for potential non-drug, personalised treatments, using TMS that might be affective in modulating inbalances in the brain networks".

"If we can understand how alterations in cortical excitability give rise to neural disorders we can potentially reverse them".

Recommended:



Popular

IS chief Baghdadi likely still alive: United States general
Assessing his 12 months in command of the USA -led coalition, Townsend said more tough fighting remains but signs are positive. In June, Russia reported Baghdadi was probably killed in a airstrike, but the US said it couldn't confirm that report.

Ream, Wood gets starts for United States against Costa Rica
What is proven to get the US a win at home? Arena said he still feels as if the U.S.is in position to qualify for the World Cup. On the road Costa Ricans score points with fights, tied with Honduras 1: 1, beating Trinidad 2-0 and losing to Mexico 0: 2.

Alex Oxlade-Chamberlain undergoes medical ahead of Liverpool move
Liverpool boss Jurgen Klopp said he was " really happy" to have signed an "exciting" talent he "didn't need to think twice" about. The FC crew break down Arsenal's inability to add big players and sell unhappy stars during the summer transfer window.

GDP growth hits 3 Year low 5.7% in Q1
India's GDP slowed to 5.7% in the April-June quarter from 7.9% in the corresponding period previous year . Demonetisation did not have any impact on demand, as shortage of cash declined from February.

Polls: a growing number of Americans don't like Trump's conduct
A new Fox News poll has revealed a high level of discontent with US President Donald Trump . Most voters, however, appeared to express dissatisfaction with Trump's leadership overall.

Windows Mixed Reality headsets to cost £399 in the UK
Also, you may ink directly on PDF documents, and use the new Windows Find my Pen feature to find the pen if you have misplaced it. The Windows 10 Creators Update , which is also known as 1703 (for March 2017) did not start rolling out until mid-April.

Toronto gas prices expected to hit $1.32 on weekend
Locally, prices across the Greater Toronto Area may hit between $1.329 and $1.339 per litre on September 2. Now there is no indication the refineries have been damaged by the hurricane or resulting flooding.

Tax reform important to voters, but most doubt it will happen
Most Americans continue to view Trump's job performance negatively and view him personally in an unfavorable light. About 1 in 5 (19 percent) say they don't like it, and a plurality of 46 percent say they have "mixed feelings".

JJ Watt reaches $10M goal for Hurricane Harvey relief
I have been so encouraged to see how the locals and the nation as a whole have come together to help one another. Social media has played a big role in Watt's relief fund reaching its current level.

Maruti Suzuki to launch new ARENA showrooms
They can explore the entire product portfolio, through interactive Product Vision touch screens at the showroom. This will be apart from its Nexa showrooms, which were launched two years ago to sell its premium products.