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Upon being told to present an off-the-cuff five-minute speech and then subtract sequentially in intervals of 17 – before a panel of three strangers – the acute stress was written on my face.

That is because scientists were documenting this somewhat terrifying experience for a research project that is studying stress using infrared imaging.

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

Infrared technology, as stated by the scientists conducting the research could be a "revolutionary development" in anxiety studies.

The Research Anxiety Evaluation

The experimental stress test that I participated in is meticulously designed and purposely arranged to be an unexpected challenge. I came to the research facility with little knowledge what I was facing.

First, I was told to settle, calm down and listen to ambient sound through a pair of earphones.

Thus far, quite relaxing.

Subsequently, the scientist who was running the test brought in a panel of three strangers into the area. They all stared at me silently as the scientist explained that I now had a brief period to create a five minute speech about my "perfect occupation".

While experiencing the heat rise around my neck, the scientists captured my face changing colour through their thermal camera. My facial temperature immediately decreased in temperature – showing colder on the heat map – as I contemplated ways to navigate this impromptu speech.

Research Findings

The investigators have carried out this identical tension assessment on 29 volunteers. In each, they noticed the facial region decrease in warmth by a noticeable amount.

My facial temperature decreased in heat by two degrees, as my physiological mechanism shifted blood distribution from my nose and to my sensory systems – a bodily response to enable me to see and detect for threats.

Nearly all volunteers, similar to myself, recovered quickly; their noses warmed to normal readings within a few minutes.

Lead researcher explained that being a journalist and presenter has probably made me "quite habituated to being put in anxiety-provoking circumstances".

"You're familiar with the camera and talking with strangers, so you're probably somewhat resistant to social stressors," the researcher noted.

"But even someone like you, accustomed to being stressful situations, exhibits a bodily response alteration, so this indicates this 'nasal dip' is a consistent measure of a altering tension condition."

Anxiety Control Uses

Tension is inevitable. But this revelation, the experts claim, could be used to assist in controlling damaging amounts of anxiety.

"The period it takes someone to recover from this cooling effect could be an objective measure of how effectively a person manages their tension," said the lead researcher.

"Should they recover exceptionally gradually, might this suggest a warning sign of mental health concerns? Is it something that we can do anything about?"

Since this method is without physical contact and measures a physical response, it could furthermore be beneficial to track anxiety in babies or in individuals unable to express themselves.

The Mental Arithmetic Challenge

The subsequent challenge in my anxiety evaluation was, personally, more difficult than the first. I was asked to count sequentially decreasing from 2023 in steps of 17. Someone on the panel of expressionless people halted my progress every time I made a mistake and instructed me to recommence.

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

While I used uncomfortable period striving to push my mind to execute mathematical calculations, all I could think was that I wished to leave the progressively tense environment.

In the course of the investigation, only one of the numerous subjects for the anxiety assessment did truly seek to exit. The others, similar to myself, accomplished their challenges – probably enduring different levels of embarrassment – and were rewarded with another calming session of background static through headphones at the finish.

Primate Study Extensions

Possibly included in the most unexpected elements of the technique is that, because thermal cameras record biological tension reactions that is innate in numerous ape species, it can also be used in animal primates.

The investigators are actively working on its use in sanctuaries for great apes, including chimpanzees and gorillas. They aim to determine how to decrease anxiety and improve the wellbeing of creatures that may have been removed from traumatic circumstances.

Researchers have previously discovered that showing adult chimpanzees recorded material of young primates has a relaxing impact. When the investigators placed a video screen near the protected apes' living area, they observed the nasal areas of creatures that observed the content increase in temperature.

Consequently, concerning tension, viewing infant primates interacting is the inverse of a unexpected employment assessment or an on-the-spot subtraction task.

Future Applications

Employing infrared imaging in primate refuges could prove to be valuable in helping rehabilitated creatures to adjust and settle in to a unfamiliar collective and unfamiliar environment.

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