Experiments in physiology. Facial expressions; Attention
- Guillaume Benjamin Amand Duchenne de Boulogne
Licence: Public Domain Mark
Credit: Experiments in physiology. Facial expressions; Attention. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/L0085462/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: Experiments in physiology. Facial expressions; Attention. Wellcome Collection. Source: Wellcome Collection.