Etcoff, N;
Stock, S;
Krumhuber, EG;
Reed, LI;
(2021)
A Novel Test of the Duchenne Marker: Smiles After Botulinum Toxin Treatment for Crow’s Feet Wrinkles.
Frontiers in Psychology
, 11
, Article 612654. 10.3389/fpsyg.2020.612654.
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Abstract
© Copyright © 2021 Etcoff, Stock, Krumhuber and Reed. Smiles that vary in muscular configuration also vary in how they are perceived. Previous research suggests that “Duchenne smiles,” indicated by the combined actions of the orbicularis oculi (cheek raiser) and the zygomaticus major muscles (lip corner puller), signal enjoyment. This research has compared perceptions of Duchenne smiles with non-Duchenne smiles among individuals voluntarily innervating or inhibiting the orbicularis oculi muscle. Here we used a novel set of highly controlled stimuli: photographs of patients taken before and after receiving botulinum toxin treatment for crow’s feet lines that selectively paralyzed the lateral orbicularis oculi muscle and removed visible lateral eye wrinkles, to test perception of smiles. Smiles in which the orbicularis muscle was active (prior to treatment) were rated as more felt, spontaneous, intense, and happier. Post treatment patients looked younger, although not more attractive. We discuss the potential implications of these findings within the context of emotion science and clinical research on botulinum toxin.
Type: | Article |
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Title: | A Novel Test of the Duchenne Marker: Smiles After Botulinum Toxin Treatment for Crow’s Feet Wrinkles |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.3389/fpsyg.2020.612654 |
Publisher version: | https://doi.org/10.3389/fpsyg.2020.612654 |
Language: | English |
Additional information: | © 2021 Etcoff, Stock, Krumhuber and Reed. This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/). |
Keywords: | facial expression, Duchenne smile, botulinum toxin, emotion, attractiveness |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Experimental Psychology |
URI: | https://discovery.ucl.ac.uk/id/eprint/10120320 |
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