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After being requested to deliver an unprepared five-minute speech and then calculate in reverse in steps of 17 – before a group of unfamiliar people – the sudden tension was visible in my features.

The reason was that researchers were filming this somewhat terrifying situation for a scientific study that is studying stress using infrared imaging.

Stress alters the blood distribution in the countenance, and researchers have found that the thermal decrease of a person's nose can be used as a measure of stress levels and to observe restoration.

Heat mapping, according to the psychologists leading the investigation could be a "revolutionary development" in anxiety studies.

The Scientific Tension Assessment

The experimental stress test that I participated in is precisely structured and deliberately designed to be an discomforting experience. I visited the academic institution with little knowledge what I was facing.

Initially, I was told to settle, calm down and hear background static through a pair of earphones.

So far, so calming.

Subsequently, the scientist who was conducting the experiment introduced a trio of unknown individuals into the space. They collectively gazed at me silently as the scientist explained that I now had three minutes to prepare a brief presentation about my "perfect occupation".

While experiencing the warmth build around my collar area, the experts documented my face changing colour through their heat-sensing equipment. My facial temperature immediately decreased in warmth – turning blue on the thermal image – as I considered how to navigate this impromptu speech.

Research Findings

The scientists have performed this equivalent anxiety evaluation on numerous subjects. In all instances, they saw their nose decrease in warmth by several degrees.

My nasal area cooled in warmth by a couple of degrees, as my nervous system shifted blood distribution from my nasal region and to my visual and auditory organs – a physiological adaptation to assist me in look and listen for danger.

Most participants, like me, returned to normal swiftly; their nasal areas heated to normal readings within a brief period.

Head scientist stated that being a journalist and presenter has probably made me "relatively adapted to being subjected to anxiety-provoking circumstances".

"You're familiar with the recording equipment and speaking to strangers, so it's probable you're relatively robust to interpersonal pressures," she explained.

"Nevertheless, even people with your background, experienced in handling anxiety-provoking scenarios, shows a physiological circulation change, so this indicates this 'facial cooling' is a consistent measure of a altering tension condition."

Stress Management Applications

Stress is part of life. But this revelation, the experts claim, could be used to assist in controlling negative degrees of anxiety.

"The length of time it takes an individual to bounce back from this cooling effect could be an quantifiable indicator of how efficiently somebody regulates their anxiety," said the lead researcher.

"If they bounce back remarkably delayed, might this suggest a risk marker of mental health concerns? Is this an aspect that we can do anything about?"

Since this method is non-invasive and measures a physical response, it could also be useful to track anxiety in babies or in those with communication challenges.

The Mental Arithmetic Challenge

The subsequent challenge in my stress assessment was, from my perspective, more challenging than the opening task. I was told to calculate backwards from 2023 in increments of seventeen. Someone on the panel of three impassive strangers interrupted me each instance I committed an error and asked me to start again.

I confess, I am poor with doing math in my head.

During the embarrassing length of time striving to push my mind to execute mathematical calculations, the only thought was that I wanted to flee the growing uncomfortable space.

Throughout the study, only one of the numerous subjects for the tension evaluation did genuinely request to leave. The rest, like me, finished their assignments – presumably feeling different levels of embarrassment – and were compensated by an additional relaxation period of background static through audio devices at the conclusion.

Animal Research Applications

Perhaps one of the most remarkable features of the approach is that, as heat-sensing technology monitor physiological anxiety indicators that is inherent within various monkey types, it can furthermore be utilized in other species.

The researchers are actively working on its implementation within habitats for large monkeys, comprising various ape species. They want to work out how to reduce stress and boost the health of creatures that may have been removed from distressing situations.

The team has already found that showing adult chimpanzees visual content of young primates has a relaxing impact. When the scientists installed a visual device near the protected apes' living area, they observed the nasal areas of animals that watched the material heat up.

Therefore, regarding anxiety, observing young creatures engaging in activities is the opposite of a surprise job interview or an on-the-spot subtraction task.

Future Applications

Employing infrared imaging in monkey habitats could prove to be beneficial in supporting protected primates to become comfortable to a new social group and strange surroundings.

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