Performing Calculations Mentally Truly Stresses Me Out and Studies Demonstrate This

Upon being told to give an impromptu short talk and then calculate in reverse in steps of 17 – while facing a trio of unknown individuals – the acute stress was visible in my features.

Infrared photography demonstrating anxiety indicator
The temperature drop in the nasal area, visible through the thermal image on the right side, happens because stress affects our blood flow.

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

Stress alters the circulation in the facial area, and scientists have discovered that the drop in temperature of a person's nose can be used as a gauge of anxiety and to observe restoration.

Heat mapping, according to the psychologists behind the study could be a "game changer" in stress research.

The Research Anxiety Evaluation

The experimental stress test that I participated in is precisely structured and deliberately designed to be an discomforting experience. I arrived at the research facility with no idea what I was facing.

Initially, I was asked to sit, relax and experience white noise through a pair of earphones.

Up to this point, very peaceful.

Subsequently, the investigator who was running the test brought in a group of unfamiliar people into the space. They each looked at me without speaking as the researcher informed that I now had a brief period to develop a five minute speech about my "dream job".

As I felt the warmth build around my throat, the scientists captured my complexion altering through their thermal camera. My nose quickly dropped in warmth – appearing cooler on the infrared display – as I considered how to navigate this impromptu speech.

Research Findings

The scientists have carried out this same stress test on multiple participants. In every case, they observed the nasal area cool down by several degrees.

My nose dropped in warmth by a small amount, as my biological response system pushed blood flow away from my nasal region and to my visual and auditory organs – a physical reaction to enable me to observe and hear for danger.

The majority of subjects, like me, returned to normal swiftly; their facial temperatures rose to normal readings within a brief period.

Principal investigator stated that being a reporter and broadcaster has probably made me "somewhat accustomed to being placed in stressful positions".

"You are used to the filming device and conversing with strangers, so you're likely quite resilient to public speaking anxieties," she explained.

"However, even individuals such as yourself, trained to be stressful situations, shows a biological blood flow shift, so that suggests this 'nasal dip' is a robust marker of a shifting anxiety level."

Nasal temperature changes during tense moments
The 'nasal dip' happens in just a few minutes when we are acutely stressed.

Anxiety Control Uses

Anxiety is natural. But this revelation, 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 temperature drop could be an quantifiable indicator of how effectively an individual controls their tension," noted the principal investigator.

"If they bounce back exceptionally gradually, could that be a potential indicator of mental health concerns? Is it something that we can tackle?"

As this approach is non-invasive and records biological reactions, it could furthermore be beneficial to observe tension in babies or in people who can't communicate.

The Mathematical Stress Test

The second task in my stress assessment was, personally, more challenging than the opening task. I was told to calculate sequentially decreasing from 2023 in increments of seventeen. One of the observers of expressionless people interrupted me each instance I committed an error and instructed me to start again.

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

During the embarrassing length of time striving to push my thinking to accomplish mathematical calculations, the only thought was that I desired to escape the progressively tense environment.

In the course of the investigation, only one of the numerous subjects for the stress test did genuinely request to depart. The rest, comparable to my experience, finished their assignments – presumably feeling different levels of embarrassment – and were given an additional relaxation period of white noise through headphones at the conclusion.

Non-Human Applications

Perhaps one of the most unexpected elements of the approach is that, since infrared imaging record biological tension reactions that is inherent within various monkey types, it can also be used in non-human apes.

The researchers are actively working on its use in sanctuaries for great apes, such as chimps and gorillas. They want to work out how to reduce stress and improve the wellbeing of creatures that may have been rescued from harmful environments.

Primate studies using infrared technology
Primates and apes in refuges may have been rescued from traumatic circumstances.

The team has already found that showing adult chimpanzees visual content of young primates has a calming effect. When the researchers set up a visual device near the protected apes' living area, they noticed the facial regions of creatures that observed the material heat up.

So, in terms of stress, viewing infant primates interacting is the inverse of a surprise job interview or an spontaneous calculation test.

Coming Implementations

Implementing heat-sensing technology in primate refuges could prove to be useful for assisting protected primates to become comfortable to a different community and strange surroundings.

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Margaret Houston
Margaret Houston

A dedicated writer and theologian passionate about sharing faith-based insights and fostering community connections.