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New Study Finds Smiling Tricks Your Mind into a Positive Mood

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New Study Finds Smiling Tricks Your Mind into a Positive Mood

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

In a study published in Experimental Psychology, researchers at the University of South Australia 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.

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 researcher and human and artificial cognition expert, UniSA’s Dr. Fernando Marmolejo-Ramos says the finding has 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.

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

“For mental health, this has interesting implications. If we can trick the brain into perceiving stimuli as ‘happy,’ then we can potentially use this mechanism to help boost mental health.”

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.

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

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

For more on the benefits of smiling and how to build more happiness, read our article The Telltale Signs of Joy.


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