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Upon being told to give an impromptu short talk and then count backwards in steps of 17 – before a panel of three strangers – the acute stress was written on my face.

That is because researchers were filming this quite daunting scenario for a research project that is studying stress using infrared imaging.

Tension changes the blood flow in the countenance, and experts have determined that the cooling effect of a subject's face can be used as a measure of stress levels and to observe restoration.

Infrared technology, based on researcher findings conducting the research could be a "transformative advancement" in stress research.

The Experimental Stress Test

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

Initially, I was told to settle, calm down and listen to white noise through a pair of earphones.

So far, so calming.

Then, the investigator who was overseeing the assessment introduced a group of unfamiliar people into the room. They all stared at me silently as the researcher informed that I now had three minutes to develop a five minute speech about my "ideal career".

As I felt the heat rise around my neck, the experts documented my skin tone shifting through their heat-sensing equipment. My nasal area rapidly cooled in temperature – showing colder on the infrared display – as I contemplated ways to bluster my way through this spontaneous talk.

Study Outcomes

The scientists have conducted this same stress test on 29 volunteers. In every case, they noticed the facial region dip in temperature by between three and six degrees.

My facial temperature decreased in temperature by a small amount, as my nervous system redirected circulation from my nose and to my visual and auditory organs – a physiological adaptation to enable me to observe and hear for threats.

The majority of subjects, comparable to my experience, returned to normal swiftly; their nasal areas heated to baseline measurements within a short time.

Head scientist explained that being a media professional has probably made me "quite habituated to being subjected to anxiety-provoking circumstances".

"You're familiar with the recording equipment and conversing with unfamiliar people, so you're likely quite resilient to public speaking anxieties," she explained.

"However, even individuals such as yourself, accustomed to being tense circumstances, exhibits a bodily response alteration, so that suggests this 'nose temperature drop' is a consistent measure of a changing stress state."

Tension Regulation Possibilities

Anxiety is natural. But this discovery, the researchers state, could be used to assist in controlling negative degrees of tension.

"The length of time it takes someone to recover from this cooling effect could be an objective measure of how efficiently somebody regulates their stress," explained the head scientist.

"If they bounce back exceptionally gradually, might this suggest a risk marker of mental health concerns? Is this an aspect that we can address?"

Since this method is non-intrusive and measures a physical response, it could additionally prove valuable to monitor stress in infants or in those with communication challenges.

The Calculation Anxiety Assessment

The second task in my stress assessment was, from my perspective, more challenging than the opening task. I was instructed to subtract in reverse starting from 2023 in intervals of 17. A member of the group of expressionless people halted my progress each instance I made a mistake and told me to start again.

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

During the uncomfortable period attempting to compel my mind to execute subtraction, the only thought was that I desired to escape the growing uncomfortable space.

Throughout the study, only one of the multiple participants for the stress test did genuinely request to depart. The remainder, comparable to my experience, finished their assignments – likely experiencing varying degrees of embarrassment – and were compensated by an additional relaxation period of ambient sound through headphones at the end.

Non-Human Applications

Perhaps one of the most unexpected elements of the approach is that, since infrared imaging monitor physiological anxiety indicators that is natural to various monkey types, it can also be used in non-human apes.

The scientists are presently creating its implementation within habitats for large monkeys, including chimpanzees and gorillas. They seek to establish how to lower tension and improve the wellbeing of animals that may have been removed from distressing situations.

Researchers have previously discovered that presenting mature chimps video footage of young primates has a soothing influence. When the investigators placed a visual device close to the rescued chimps' enclosure, they saw the noses of creatures that observed the material heat up.

So, in terms of stress, watching baby animals playing is the opposite of a surprise job interview or an impromptu mathematical challenge.

Coming Implementations

Implementing heat-sensing technology in primate refuges could turn out to be beneficial in supporting rehabilitated creatures to adapt and acclimate to a new social group and unknown territory.

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