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When You’re Smiling, The Whole World Really Does Smile With You

[Photo: Freepik]

Groundbreaking research from the University of South Australia confirms that the act of smiling can trick your mind into being more positive, simply by moving your facial muscles.

With the world in crisis amid COVID-19, and alarming rises of anxiety and depression in Australia and around the world, the findings could not be more timely.

The study, published in Experimental Psychology, evaluated the impact of a covert smile on perception of face and body expressions. In both scenarios, a smile was induced by participants holding a pen between their teeth, forcing their facial muscles to replicate the movement of a smile.

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The research found that facial muscular activity not only alters the recognition of facial expressions but also body expressions, with both generating more positive emotions.

Lead researchers and human artificial cognition expert, UniSA’s Dr Fernando Marmolejo-Ramos says the findings have important insights for mental health.

“When your muscles say you’re happy, you’re more likely to see the world around you in a positive way,” Dr Marmolejo-Ramos says.

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“In our research, we found that when you forcefully practise smiling, it stimulates the amygdala — the emotions centre of the brain — which releases neurotransmitters to encourage an emotionally positive state.

The study replicated findings from the ‘covert’ smile experiment by evaluating how people interpret a range of facial expressions (spanning frowns to smiles) using the pen-in-teeth mechanism; it then extended this using point-light motion images (spanning sad walking videos to happy walking videos) as the visual stimuli.

Dr Marmolejo-Ramos says there is a strong link between action and perception.

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“In a nutshell, perceptual and motor systems are intertwined when we emotionally process stimuli,” Dr Marmolejo-Ramos says.

“A ‘fake it ‘till you make it’ approach could have more credit than we expect.”


CITATION
University of South Australia. “When you’re smiling, the whole world really does smile with you.” ScienceDaily. ScienceDaily, 13 August 2020. <www.sciencedaily.com/releases/2020/08/200813123608.htm>.


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