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When I was asked to give an impromptu five-minute speech and then count backwards in intervals of 17 – all in front of a panel of three strangers – the sudden tension was written on my face.

That is because psychologists were documenting this quite daunting experience for a research project that is studying stress using thermal cameras.

Anxiety modifies the circulation in the facial area, and researchers have found that the cooling effect of a person's nose can be used as a indicator of tension and to observe restoration.

Thermal imaging, based on researcher findings conducting the research could be a "game changer" in tension analysis.

The Scientific Tension Assessment

The research anxiety evaluation that I underwent is carefully controlled and deliberately designed to be an unexpected challenge. I arrived at the research facility with no idea what I was about to experience.

First, I was instructed to position myself, calm down and hear white noise through a audio headset.

Thus far, quite relaxing.

Then, the scientist who was overseeing the assessment introduced a trio of unknown individuals into the area. They all stared at me silently as the scientist explained that I now had three minutes to prepare a brief presentation about my "dream job".

While experiencing the warmth build around my neck, the researchers recorded my complexion altering through their infrared device. My nose quickly dropped in warmth – showing colder on the infrared display – as I considered how to manage this unplanned presentation.

Scientific Results

The researchers have carried out this identical tension assessment on multiple participants. In each, they saw their nose cool down by several degrees.

My facial temperature decreased in heat by a small amount, as my physiological mechanism pushed blood flow away from my nose and to my eyes and ears – a physical reaction to help me to look and listen for danger.

The majority of subjects, like me, recovered quickly; their noses warmed to baseline measurements within a brief period.

Head scientist stated that being a journalist and presenter has probably made me "relatively adapted to being subjected to tense situations".

"You're familiar with the recording equipment and talking with strangers, so you're likely quite resilient to social stressors," the researcher noted.

"Nevertheless, even people with your background, experienced in handling stressful situations, demonstrates a bodily response alteration, so which implies this 'facial cooling' is a consistent measure of a shifting anxiety level."

Stress Management Applications

Tension is inevitable. But this discovery, the researchers state, could be used to help manage harmful levels of tension.

"The period it takes an individual to bounce back from this nasal dip could be an quantifiable indicator of how effectively an individual controls their stress," explained the head scientist.

"If they bounce back unusually slowly, might this suggest a warning sign of anxiety or depression? Could this be a factor that we can tackle?"

As this approach is without physical contact and records biological reactions, it could furthermore be beneficial to observe tension in newborns or in individuals unable to express themselves.

The Mental Arithmetic Challenge

The second task in my anxiety evaluation was, from my perspective, even worse than the initial one. I was instructed to subtract backwards from 2023 in intervals of 17. Someone on the panel of unresponsive individuals halted my progress every time I committed an error and told me to recommence.

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

While I used uncomfortable period attempting to compel my mind to execute mathematical calculations, all I could think was that I wanted to flee the increasingly stuffy room.

In the course of the investigation, just a single of the 29 volunteers for the anxiety assessment did truly seek to depart. The remainder, like me, finished their assignments – probably enduring varying degrees of humiliation – and were rewarded with an additional relaxation period of ambient sound through earphones at the finish.

Non-Human Applications

Possibly included in the most surprising aspects of the approach is that, as heat-sensing technology monitor physiological anxiety indicators that is inherent within numerous ape species, it can furthermore be utilized in animal primates.

The researchers are actively working on its use in refuges for primates, including chimpanzees and gorillas. They aim to determine how to decrease anxiety and enhance the welfare of primates that may have been saved from distressing situations.

The team has already found that showing adult chimpanzees video footage of young primates has a calming effect. When the researchers set up a display monitor close to the rehabilitated primates' habitat, they saw the noses of primates that viewed the footage warm up.

So, in terms of stress, watching baby animals playing is the inverse of a unexpected employment assessment or an on-the-spot subtraction task.

Future Applications

Using thermal cameras in ape sanctuaries could prove to be beneficial in supporting rescued animals to become comfortable to a different community and strange surroundings.

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