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J Neural Transm (Vienna). 2009 Jan;116(1):67-70. doi: 10.1007/s00702-008-0125-5. Epub 2008 Sep 20.

Change detection related to peripheral facial expression: an electroencephalography study.

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Institute for Clinical, Biological and Differential Psychology, University of Vienna, Liebiggasse 5, 1010, Vienna, Austria.


The objective is to study the change detection of emotion expression by electroencephalography (EEG). A visual letter task was combined with two neutral faces. After a short break another letter task occurred whilst the peripheral faces remained or randomly changed to joy, anger or disgust. Study participants responded whether they had perceived a change in emotion expression or not. Explicit change detection elicited more positive-going EEG amplitudes than change blindness between 750 and 900 ms. A change to disgust elicited largest effects. Furthermore, evidence for implicit change detection occurred.

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