Guillaume-Benjamin-Amand Duchenne
Figure 32: Natural laughter by the voluntary contraction of the two large zygomatics and the lower palpebral orbicularis
1856
Capturing what Duchenne identified as genuine laughter through specific muscle contractions, this photograph became foundational to later studies of authentic versus forced facial expressions.
- Medium
- Albumen print from glass plate negative
More by Guillaume-Benjamin-Amand Duchenne
Figure 51: À droite, contraction partielle de l'élévateur commun de l'aile du nez et de la lèvre supérieure: mécontentement, mauvaise humeur; à gauche, repos
1856
Figure 54: Abaissement volontaire de la mâchoire inférieure: mouvement inexpressif
1856
Figure 7: Étude du méchanisme et de l'expression du muscle frontal chez un vieillard: à droit, attention; à gauche, repos
1856
Spotted works by Guillaume-Benjamin-Amand Duchenne
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