@complex: In 1960, psychologists Eleanor J. Gibson and Richard D. Walk created the “Visual Cliff” experiment to study how babies perceive depth. The setup featured a glass surface with checkerboard patterns on either side—one directly underneath and the other about three feet below, creating the illusion of a steep drop. Researchers placed babies between 6 and 14 months old on the platform and encouraged them to crawl toward a caregiver. While many crossed the shallow side, others stopped at the edge of the apparent drop, even though the glass beneath them was completely safe. The experiment offered insight into how infants perceive depth and respond to what looks like a dangerous fall. #Science #baby #research #fear