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SWPS University - Main page

Like breeds like or how self-resemblence influences mimicry

Facial expressions are an essential source of inferences about one’s interlocutors. People tend to imitate behavioral and emotional displays they see. The phenomenon of mimicking someone’s emotions is called emotional mimicry. A team of researchers, including Michał Olszanowski, Ph.D. / Associate Professor and Natalia Frankowska, Ph.D. / Assistant Professor from SWPS University’s Center for Research on Biological Basis of Social Behavior investigated whether facial self-resemblance (manipulated by computer morphing) influences emotional mimicry in a similar manner.

#facial mimicry #emotional mimicry #self-resemblance #facial resemblance #face evaluation

What we researched:

  • As it is usually observed that people are more likely to synchronize their behaviors with those who are socially resemblant, i.e., belong to the same group, have similar attitudes or social characteristics, the researchers wanted to investigate whether mimicry is also influenced by physical resemblance.

How we did it:

  • Study participants watched dynamic expressions of faces that either did or did not resemble their own, while their facial muscle activity was measured using Electromyography (EMG) equipment that measures muscle response. Additionally, after each presentation, respondents completed social evaluations of the faces they saw.

What we discovered:

  • The results show that self-resemblance evokes convergent facial reactions. More specifically, participants mimicked the happiness and, to a lesser extent, the anger of self-resembling faces. In turn, the happiness of non-resembling faces was less likely mimicked than in the case of self-resembling faces, while anger evoked a more divergent, smile-like response. Finally, the researchers found that social evaluations were in general increased by happiness displays, but not influenced by resemblance.

Why is it important?

  • Because, the study demonstrates an interesting and novel phenomenon, particularly that mimicry can be modified by relatively subtle cues of physical resemblance.

We believe that this study helps to better understand the processes of emotional mimicry and how it is modulated by the context in which the interaction takes place.