Figure 26: Expression of painful attention and attention, attentive gaze. 1854 - 1856

"Figure 26: Expression of painful attention and attention, attentive gaze." is a photographic print by Guillaume Benjamin Amand Duchenne, a French neurologist who pioneered the study of facial expressions. This photo, taken between 1854 and 1856, is part of Duchenne’s research on the relationship between facial muscles and emotions. The subject, a woman, is photographed with a melancholic expression while a small electrical probe stimulates her facial muscles. This is a key example of Duchenne's work and his interest in exploring the science behind human expression.