🔗 Share this article

Upon being told to present an off-the-cuff short talk and then count backwards in steps of 17 – before a group of unfamiliar people – the sudden tension was evident in my expression.

This occurred since researchers were recording this quite daunting scenario for a scientific study that is examining tension using infrared imaging.

Stress alters the circulation in the facial area, and scientists have discovered that the cooling effect of a individual's nasal area can be used as a indicator of tension and to monitor recovery.

Thermal imaging, based on researcher findings leading the investigation could be a "revolutionary development" in anxiety studies.

The Experimental Stress Test

The scientific tension assessment that I subjected myself to is precisely structured and deliberately designed to be an unexpected challenge. I came to the academic institution with no idea what I was in for.

To begin, I was told to settle, calm down and experience ambient sound through a pair of earphones.

Thus far, quite relaxing.

Subsequently, the researcher who was conducting the experiment introduced a trio of unknown individuals into the room. They collectively gazed at me without speaking as the investigator stated that I now had a brief period to develop a five minute speech about my "dream job".

As I felt the temperature increase around my collar area, the scientists captured my face changing colour through their infrared device. My facial temperature immediately decreased in warmth – turning blue on the infrared display – as I thought about how to manage this impromptu speech.

Research Findings

The researchers have carried out this identical tension assessment on multiple participants. In all instances, they noticed the facial region cool down by a noticeable amount.

My facial temperature decreased in heat by a small amount, as my physiological mechanism redirected circulation from my nasal region and to my visual and auditory organs – a bodily response to enable me to look and listen for threats.

Most participants, like me, recovered quickly; their facial temperatures rose to pre-stressed levels within a short time.

Head scientist explained that being a reporter and broadcaster has probably made me "quite habituated to being placed in stressful positions".

"You're familiar with the camera and conversing with unfamiliar people, so it's probable you're somewhat resistant to interpersonal pressures," the scientist clarified.

"But even someone like you, accustomed to being anxiety-provoking scenarios, demonstrates a physiological circulation change, so which implies this 'nose temperature drop' is a robust marker of a changing stress state."

Stress Management Applications

Anxiety is natural. But this discovery, the scientists say, could be used to help manage negative degrees of tension.

"The period it takes a person to return to normal from this nasal dip could be an objective measure of how effectively an individual controls their stress," said the lead researcher.

"When they return remarkably delayed, could this indicate a potential indicator of psychological issues? Is it something that we can tackle?"

Because this technique is non-invasive and measures a physical response, it could furthermore be beneficial to track anxiety in newborns or in those with communication challenges.

The Calculation Anxiety Assessment

The following evaluation in my anxiety evaluation was, personally, more challenging than the opening task. I was instructed to subtract sequentially decreasing from 2023 in intervals of 17. One of the observers of expressionless people halted my progress each instance I calculated incorrectly and told me to start again.

I admit, I am bad at doing math in my head.

During the embarrassing length of time trying to force my brain to perform arithmetic operations, all I could think was that I wished to leave the growing uncomfortable space.

Throughout the study, only one of the multiple participants for the tension evaluation did genuinely request to depart. The remainder, similar to myself, completed their tasks – probably enduring different levels of humiliation – and were rewarded with a further peaceful interval of white noise through audio devices at the end.

Non-Human Applications

Perhaps one of the most unexpected elements of the method is that, as heat-sensing technology measure a physical stress response that is inherent within many primates, it can furthermore be utilized in other species.

The investigators are currently developing its implementation within habitats for large monkeys, comprising various ape species. They aim to determine how to decrease anxiety and enhance the welfare of animals that may have been saved from distressing situations.

Researchers have previously discovered that presenting mature chimps video footage of young primates has a calming effect. When the investigators placed a visual device close to the rehabilitated primates' habitat, they noticed the facial regions of primates that viewed the material heat up.

Consequently, concerning tension, viewing infant primates playing is the contrary to a spontaneous career evaluation or an spontaneous calculation test.

Potential Uses

Employing infrared imaging in primate refuges could prove to be useful for assisting protected primates to adjust and settle in to a new social group and strange surroundings.

"{