Scientists at Stanford University decided to carry out a clinical test to determine if couples end up looking alike. The question “ do couples look alike the longer they stay together?” has been asked by many people.
Although a pioneering study carried out in 1987 by Psychologist Robert Janoc from the University of Michigan suggested that couples may begin to look alike after being together for a while based on some factors like compatibility, lifestyle, and diet, this data wasn’t comparative enough.
At Stanford University, some researchers decided to carry out a clinical test to determine if this was true. Pin Pin Tea-makron, a Ph.D student at the University said that the initial thought was if the faces of people converge over time, the team would then determine the types of features they converge on.
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Tea-makron had to work with her colleague to get a photographic database of 517 couples to check for any proof of facial assimilation. They compared pictures of the couples that were taken within two years the relationship started and images from 20 to 69 years.
These scientists used data obtained from human volunteers and follow-up from software know as state-of-the-art. The results from this study didn’t really reveal the evidence of the face-shifting phenomenon.
Some couples who had been together for a long time resembled one another more than some randomly paired couples due to the fact that they had some similar features initially. This could be attributed to what is regarded as the “mere exposure effect.”