Monday, April 9, 2012

What Gives Liars Away?

Liars tend to raise their eyebrows and smirk.  An honest person will furrow the eyebrows and look confused.

Researchers from the University of British Columbia, Canada, have found that liars raise their eyebrows in an expression of apparent surprise and smile slightly, whereas innocent people furrow their eyebrows in distress.

The results were published in Evolution and Human Behavior, which concluded that the lack of control over facial expressions indicated real feelings, which are different from fake emotion.

The study, published in the journal Evolution and Human Behaviour, concluded that a person’s lack of control over their facial expressions meant genuine feelings could be differentiated from fake emotion.
"Psychologists say most humans can control lower face muscles in order to talk or eat but those in the upper face are difficult to manipulate and can spark involuntary behaviour.
"On Wednesday, Dr Leanne ten Brinke, who led the study, said the findings suggested attempts to mask our emotions are likely to fail when engaging in a "consequential act of deception".
                                        -- summary in The Daily Telegraph

The researchers analyzed the expressions of 52 people, half of whom were lying. Over 23 thousand frames of video were viewed from Britain, America, Canada and Australia.

Dr. ten Brinke, one of the researchers, cautioned, "Not everyone will leak their true emotions, and some people are better than others at adopting a false face (such as) psychopaths."

Summarized from an article in the UK Daily Telegraph by Andrew Hough at:

http://www.telegraph.co.uk/science/science-news/9186151/How-to-spot-a-liar-the-hint-of-a-smile-and-raised-eyebrows.html

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