Ekman and Friesen’s 1974 Nursing Experiment

In 1974 Ekman & Friesen designed one of psychology’s first non-verbal communication deception experiments where ER nurses were asked to watch positive (such as a happy or uplifting scene) or negative (such as live amputations and burn victims receiving treatment) film clips, and describe one of the gruesome scenes as pleasant to an interviewer. The nurses were filmed, and their films were shown to a large range of professionals. After observing baseline footage of the nurse’s normal behaviour, the results indicated that when the viewer saw just the face of the nurse, the untrained lie detector had a very low chance of correctly picking deception (50 / 50). On the other hand, the same untrained lie detectors became much more accurate (around 50% – 65%) when they were able to see the body language of the nurses.

This suggests that no matter how good someone is at reading faces, being able to see the body will increase your chances of detection. With the body, the non-verbal leakage acts like a gestural “slip-of-the-tongue”. 

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About Bridget Dunn

A real estate professional since 2012, Bridget is known for integrity, diplomacy and sincerity in all her dealings. She has first and foremost strived to be someone in whom her clients and colleagues can put their trust and faith. Treating clients like family is both a guiding principal and way of life for Bridget. She is dedicated to listening intently to her clients needs and providing the best possible advice, from how to get the best sales result for their home, to matching individuals and families with the properties that best suit their needs.
This entry was posted in Evaluating Truthfulness and Credibility, Facial Expressions, Psychology and tagged , , , , . Bookmark the permalink.

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