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Related Concept Videos

Facial Feedback Hypothesis01:24

Facial Feedback Hypothesis

Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role of...

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Reply: Additional Considerations for Interpreting SMILE Outcomes With the VisuMax 800 Platform

Supriya Samak Sriganesh, Sri Ganesh1

  • 1Bangalore, India.

Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|May 11, 2026
PubMed
Summary

No abstract available in PubMed .

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