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When I was asked to present an off-the-cuff brief presentation and then subtract sequentially in intervals of 17 – before a trio of unknown individuals – the intense pressure was evident in my expression.

That is because scientists were filming this quite daunting situation for a research project that is studying stress using heat-sensing technology.

Anxiety modifies the blood distribution in the facial area, and researchers have found that the thermal decrease of a subject's face can be used as a indicator of tension and to track recuperation.

Infrared technology, as stated by the scientists conducting the research could be a "game changer" in stress research.

The Scientific Tension Assessment

The research anxiety evaluation that I subjected myself to is carefully controlled and intentionally created to be an unexpected challenge. I arrived at the research facility with no idea what I was facing.

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

Thus far, quite relaxing.

Then, the researcher who was overseeing the assessment invited a group of unfamiliar people into the area. They all stared at me quietly as the investigator stated that I now had three minutes to develop a brief presentation about my "dream job".

While experiencing the warmth build around my neck, the experts documented my complexion altering through their thermal camera. My facial temperature immediately decreased in warmth – appearing cooler on the thermal image – as I contemplated ways to bluster my way through this spontaneous talk.

Scientific Results

The researchers have carried out this equivalent anxiety evaluation on multiple participants. In all instances, they saw their nose decrease in warmth by a noticeable amount.

My facial temperature decreased in heat by a small amount, as my nervous system shifted blood distribution from my nasal region and to my sensory systems – a bodily response to assist me in look and listen for hazards.

Most participants, similar to myself, returned to normal swiftly; their noses warmed to normal readings within a short time.

Principal investigator noted that being a reporter and broadcaster has probably made me "quite habituated to being put in anxiety-provoking circumstances".

"You're accustomed to the camera and speaking to unknown individuals, so you're probably quite resilient to public speaking anxieties," she explained.

"However, even individuals such as yourself, experienced in handling anxiety-provoking scenarios, shows a physiological circulation change, so this indicates this 'nasal dip' is a robust marker of a altering tension condition."

Anxiety Control Uses

Anxiety is natural. But this finding, the scientists say, could be used to help manage harmful levels of tension.

"The length of time it takes someone to recover from this temperature drop could be an reliable gauge of how well a person manages their tension," said the head scientist.

"If they bounce back unusually slowly, could this indicate a warning sign of mental health concerns? Is it something that we can tackle?"

Because this technique is non-invasive and monitors physiological changes, it could furthermore be beneficial to monitor stress in babies or in those with communication challenges.

The Mental Arithmetic Challenge

The following evaluation in my stress assessment was, from my perspective, more challenging than the first. I was instructed to subtract backwards from 2023 in intervals of 17. Someone on the panel of three impassive strangers halted my progress every time I calculated incorrectly and told me to recommence.

I confess, I am poor with calculating mentally.

While I used uncomfortable period striving to push my thinking to accomplish mathematical calculations, the only thought was that I wished to leave the growing uncomfortable space.

Throughout the study, only one of the multiple participants for the stress test did truly seek to depart. The rest, comparable to my experience, finished their assignments – probably enduring assorted amounts of embarrassment – and were compensated by a further peaceful interval of white noise through audio devices at the conclusion.

Primate Study Extensions

Possibly included in the most unexpected elements of the method is that, since infrared imaging monitor physiological anxiety indicators that is inherent within various monkey types, it can also be used in other species.

The investigators are currently developing its use in habitats for large monkeys, such as chimps and gorillas. They want to work out how to reduce stress and improve the wellbeing of primates that may have been saved from distressing situations.

The team has already found that displaying to grown apes video footage of young primates has a relaxing impact. When the researchers set up a video screen near the rehabilitated primates' habitat, they observed the nasal areas of animals that watched the material heat up.

So, in terms of stress, viewing infant primates playing is the contrary to a unexpected employment assessment or an spontaneous calculation test.

Potential Uses

Using thermal cameras in ape sanctuaries could turn out to be valuable in helping rehabilitated creatures to adjust and settle in to a unfamiliar collective and unknown territory.

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