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Our nose gets cold when we are Stressed on – and the changes are so significant that they can be seen thermal imagesOne study found.
New Research From Scientist But University of Sussex It shows how blood flow to our face changes when we are experiencing Tension-Connected EmotionUsing thermal imaging, the team was able to show the “nose drop” that occurs consistently during stressful situations.
The research involved an experimental stress test where participants were asked to listen to white noise through headphones before being given three minutes to prepare a five-minute speech about their “dream job” – all the while a panel watched them silently.
At the same time, thermal imaging was used to track changes in blood flow to the face as the participant’s stress levels increased. In each of the 29 volunteers, he found his nose The temperature dropped between three to six degrees.
According to researchers, the change in blood flow occurs when our arousal system is activated because the human brain and body have evolved to respond to external stressors by being more alert.
Because vision is the primary sensory modality of all primates, we have adapted to increase our attention to our visual environment, therefore diverting blood flow away from other parts of the face.
This change causes vasoconstriction around the nose, resulting in a significant drop in the temperature of the tip of the nose compared to when we are calm.
The scientists said the nose dip could be used as a “real-time, non-invasive, unobtrusive, direct biological measure of stress-related emotions.”
The lead researcher, Professor Gillian Forrester, is set to demonstrate the degradation to an audience at the New Scientist Live event in London on 18 October. His team told the BBC that because this is an evolutionary response present in all primates, it can be used to measure stress levels in apes as well as humans.
“They may not be able to say how they’re feeling and they may be quite good at hiding how they’re feeling,” said Marianne Paisley, a researcher at the University of Sussex. “We [studied] We have been using primates for the last 100 years to help us understand ourselves.
“We know a lot about human mental health now, so maybe we can use that and give back to them.”