Thursday, January 29, 2009

Botox, Loss of Empathy and Darwin



There's an article about the evolution of facial expressions published in 2008 at Discover Magazine. The Article (3 decent pages) goes into detail on Darwins fascination with human and animal facial expressions. The author (Carl Zimmer) traces the early studies of Darwin in this field through to the understanding of modern science. It's fascinating stuff, especially when they start talking about the Botox.
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According to science a good part of our ability to understand facial expressions, to empathize with people, depends on our ability to mimic the expression. When we mimic someone's expression, we actually experience the emotion. As Darwin discovered even understanding the snarl of a dog is easy once you writhe your own lips and expose teeth (which makes me wonder about mimicking alien faces).

In different studies researchers paralysed or otherwise limited people's ability to smile. They found that this inhibited the test subject's ability to understand/recognize a smile in a picture. Using brain scans researchers have actually mapped a direct link between facial muscles and brain activity in the emotion centres.

Fascinating stuff. But where is the Botox? Well it so happens that not only are researchers paralysing facial muscles, but so are plastic surgeons. And the muscles they tend to paralyse the most? Frown lines.

People are unable to frown, and thus are less able to understand/empathize with the emotions that produces those frowns. Emotions like anger and sadness. It can be theorized that this is leading to a happier population. Fewer people frowning, triggering few empathetic frown responses, and the spiral goes down to zero. It may even explain why the Stars seem to have a better life than the rest of us. They do have a better life. They can't get sad or feel the pain of others as easily.

However the article finishes with this comment on our Botox Culture:
"But for all the Botox youthfulness plastic surgeons may want to think about, neuroscience raises a darker possibility. Making faces helps us understand how other people are feeling. By altering our faces we’re tampering with the ancient lines of communication between face and brain that may change our minds in ways we don’t yet understand."


Now that could be an interesting story.


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