Performing Calculations Mentally Really Makes Me Tense and Science Has Proved It

After being requested to give an impromptu brief presentation and then calculate in reverse in intervals of 17 – before a trio of unknown individuals – the intense pressure was evident in my expression.

Infrared photography demonstrating stress response
The temperature drop in the facial region, visible through the infrared picture on the right side, occurs since stress affects our blood flow.

The reason was that researchers were documenting this somewhat terrifying scenario for a investigation that is examining tension using infrared imaging.

Tension changes the blood distribution in the face, and experts have determined that the thermal decrease of a person's nose can be used as a gauge of anxiety and to monitor recovery.

Heat mapping, as stated by the scientists behind the study could be a "game changer" in stress research.

The Scientific Tension Assessment

The research anxiety evaluation that I underwent is precisely structured and deliberately designed to be an unpleasant surprise. I arrived at the university with minimal awareness what I was in for.

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

Thus far, quite relaxing.

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

As I felt the warmth build around my collar area, the researchers recorded my complexion altering through their infrared device. My nose quickly dropped in heat – appearing cooler on the thermal image – as I contemplated ways to navigate this unplanned presentation.

Research Findings

The scientists have carried out this equivalent anxiety evaluation on 29 volunteers. In each, they noticed the facial region dip in temperature by between three and six degrees.

My facial temperature decreased in heat by two degrees, as my nervous system redirected circulation from my face and to my visual and auditory organs – a physical reaction to help me to look and listen for hazards.

Most participants, like me, recovered quickly; their noses warmed to baseline measurements within a few minutes.

Lead researcher noted that being a reporter and broadcaster has probably made me "quite habituated to being put in stressful positions".

"You are used to the filming device and talking with unfamiliar people, so you're probably relatively robust to interpersonal pressures," the researcher noted.

"But even someone like you, trained to be tense circumstances, shows a bodily response alteration, so which implies this 'facial cooling' is a robust marker of a shifting anxiety level."

Nasal temperature changes during tense moments
The temperature decrease takes place during just a few minutes when we are extremely tense.

Tension Regulation Possibilities

Stress is part of life. But this finding, the experts claim, could be used to help manage harmful levels of stress.

"The duration it takes an individual to bounce back from this cooling effect could be an objective measure of how efficiently an individual controls their stress," said the lead researcher.

"If they bounce back exceptionally gradually, could that be a warning sign of anxiety or depression? Could this be a factor that we can do anything about?"

Because this technique is without physical contact and monitors physiological changes, it could furthermore be beneficial to track anxiety in babies or in those with communication challenges.

The Mental Arithmetic Challenge

The second task in my tension measurement was, from my perspective, even worse than the first. I was instructed to subtract sequentially decreasing from 2023 in intervals of 17. Someone on the panel of unresponsive individuals interrupted me each instance I made a mistake and asked me to start again.

I admit, I am poor with calculating mentally.

While I used embarrassing length of time striving to push my brain to perform arithmetic operations, the only thought was that I wished to leave the increasingly stuffy room.

During the research, just a single of the multiple participants for the anxiety assessment did truly seek to depart. The rest, comparable to my experience, accomplished their challenges – probably enduring varying degrees of discomfort – and were rewarded with another calming session of ambient sound through headphones at the finish.

Non-Human Applications

Perhaps one of the most surprising aspects of the approach is that, because thermal cameras record biological tension reactions that is inherent within numerous ape species, it can also be used in non-human apes.

The researchers are currently developing its implementation within habitats for large monkeys, including chimpanzees and gorillas. They aim to determine how to reduce stress and boost the health of primates that may have been rescued from traumatic circumstances.

Ape investigations using heat mapping
Primates and apes in refuges may have been saved from distressing situations.

Researchers have previously discovered that presenting mature chimps visual content of young primates has a relaxing impact. When the scientists installed a display monitor adjacent to the rescued chimps' enclosure, they observed the nasal areas of animals that watched the footage increase in temperature.

Consequently, concerning tension, viewing infant primates engaging in activities is the inverse of a unexpected employment assessment or an on-the-spot subtraction task.

Potential Uses

Using thermal cameras in ape sanctuaries could demonstrate itself as beneficial in supporting rehabilitated creatures to adjust and settle in to a new social group and unfamiliar environment.

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Kenneth Kennedy
Kenneth Kennedy

A passionate football analyst with over a decade of experience covering European leagues and providing in-depth insights.