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When I was asked to give an impromptu short talk and then count backwards in steps of 17 – while facing a trio of unknown individuals – the sudden tension was evident in my expression.

The reason was that psychologists were recording this quite daunting situation for a research project that is studying stress using thermal cameras.

Tension changes the blood flow in the face, and experts have determined that the thermal decrease of a subject's face can be used as a indicator of tension and to observe restoration.

Infrared technology, as stated by the scientists leading the investigation could be a "game changer" in anxiety studies.

The Scientific Tension Assessment

The scientific tension assessment that I underwent is carefully controlled and intentionally created to be an discomforting experience. I came to the academic institution with minimal awareness what I was in for.

Initially, I was instructed to position myself, calm down and hear ambient sound through a set of headphones.

Up to this point, very peaceful.

Afterward, the scientist who was conducting the experiment introduced a panel of three strangers into the area. They all stared at me quietly as the scientist explained that I now had three minutes to prepare a short talk about my "perfect occupation".

While experiencing the heat rise around my neck, the scientists captured my face changing colour through their heat-sensing equipment. My nose quickly dropped in heat – appearing cooler on the heat map – as I contemplated ways to navigate this spontaneous talk.

Research Findings

The investigators have carried out this same stress test on numerous subjects. In every case, they observed the nasal area dip in temperature by several degrees.

My nose dropped in temperature by a small amount, as my biological response system redirected circulation from my nasal region and to my sensory systems – a physiological adaptation to enable me to observe and hear for hazards.

The majority of subjects, like me, returned to normal swiftly; their noses warmed to normal readings within a short time.

Principal investigator explained that being a journalist and presenter has probably made me "somewhat accustomed to being put in tense situations".

"You're accustomed to the camera and conversing with unfamiliar people, so it's probable you're somewhat resistant to social stressors," the scientist clarified.

"But even someone like you, trained to be tense circumstances, shows a bodily response alteration, so this indicates this 'nasal dip' is a reliable indicator of a altering tension condition."

Stress Management Applications

Tension is inevitable. But this finding, the researchers state, could be used to assist in controlling harmful levels of stress.

"The length of time it takes someone to recover from this nasal dip could be an quantifiable indicator of how effectively an individual controls their anxiety," said the principal investigator.

"When they return remarkably delayed, could this indicate a warning sign of anxiety or depression? Could this be a factor that we can do anything about?"

Because this technique is non-intrusive and records biological reactions, it could additionally prove valuable to observe tension in infants or in those with communication challenges.

The Mental Arithmetic Challenge

The following evaluation in my stress assessment was, in my view, even worse than the first. I was asked to count backwards from 2023 in intervals of 17. One of the observers of unresponsive individuals halted my progress each instance I made a mistake and instructed me to begin anew.

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

As I spent uncomfortable period trying to force my brain to perform arithmetic operations, my sole consideration was that I wanted to flee the growing uncomfortable space.

Throughout the study, just a single of the 29 volunteers for the stress test did genuinely request to leave. The others, like me, completed their tasks – probably enduring varying degrees of discomfort – and were rewarded with an additional relaxation period of white noise through headphones at the finish.

Animal Research Applications

Maybe among the most unexpected elements of the approach is that, since infrared imaging measure a physical stress response that is innate in numerous ape species, it can additionally be applied in other species.

The researchers are actively working on its use in habitats for large monkeys, including chimpanzees and gorillas. They want to work out how to lower tension and enhance the welfare of primates that may have been removed from harmful environments.

The team has already found that presenting mature chimps recorded material of baby chimpanzees has a soothing influence. When the investigators placed a video screen adjacent to the rescued chimps' enclosure, they saw the noses of primates that viewed the material heat up.

Consequently, concerning tension, viewing infant primates engaging in activities is the opposite of a unexpected employment assessment or an spontaneous calculation test.

Potential Uses

Employing infrared imaging in ape sanctuaries could prove to be useful for assisting protected primates to become comfortable to a unfamiliar collective and strange surroundings.

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