Darwin’s contributions to understanding human psychology involved careful study of child development, which he reported in 1877 in “Biographical Sketch of an Infant.” For the first three years of his first-born son William’s life, Darwin observed him with the practiced eye of a naturalist, recording developments as diverse as his ability to follow a candle with his eyes to the first manifestations of conscience.
Les contributions de Darwin à la compréhension de la psychologie humaine ont impliqué l'étude soigneuse du développement d'enfant, rapportée en 1877 dans “Biographical Sketch of an Infant.”