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 Stu Dunn

I have three major professional areas in my life: Team Dunn Real Estate (Harcourts Real Estate with my beautiful wife Bridget), SDL (Behavioural Science Consulting) and Qian Li Dao Academy NZ (Wing Chun Kung Fu). Stu & Bridget Dunn Real Estate: Providing awesome service and results through our approachable, professional and effective real estate services. http://stubridget.harcourts.co.nz/ SDL: SDL helps our clients to understand non-verbal communication and to avoid deception. We do this by providing online courses, training and specialist advice in areas of behaviour, emotional analysis and detecting deception. Both my wife Bridget and I are also FACS certified. I have also written an International Best Seller, True Lies; A Guide To Reading Faces, Interpreting Body Language & Detecting Deception In The Real World. www.MicroExpressions.co.nz, www.facebook.com/sdlmicroexpressions & www.StuDunn.com Qian Li Dao Academy NZ (Wing Chun Kung Fu): The Wing Chun System, known for its incredible speed, powerful straight punches & Chi Sao (contact reflex training), relies on angling & body mechanics rather than brute force. www.QianLiDao.co.nz
This entry was posted in Evaluating Truthfulness and Credibility, Facial Expressions, Psychology and tagged , , , , . Bookmark the permalink.

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