Let your head do the talking

http://www.eurekalert.org/pub_releases/2015-10/mu-lyh102715.php

Public Release: 27-Oct-2015
Let your head do the talking
Head movements play an important role in conveying emotions through speech and music
McGill University

When people talk or sing, they often nod, tilt or bow their heads to reinforce verbal messages. But how effective are these head gestures at conveying emotions?

Very effective, according to researchers from McGill University in Montreal. Steven R. Livingstone and Caroline Palmer, from McGill's Department of Psychology, found that people were highly accurate at judging emotions based on head movements alone, even in the absence of sound or facial expressions.

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