Adults’ Understanding and 6-To-7-Month-Old Infants’ Perception of Size and Mass Relationships in Collision Events

Humans first start to perceive the relationship between object size and mass in simple collision events at about 5.5–6.5 months of age. They this link by attending moving anticipating a greater displacement after with large lesser small object. The results aforementioned experiment is based on infants’ responses propelling stationary same distance (long distance). It unknown how infants would if propelled appropriate (congruent) inappropriate (incongruent) distances. This paper aims investigate adults (experiment 1) 6-to-7-month-old 2). served validate our computer-generated events, asking (N = 24) rate likeness happening real-life, size. In second experiment, we tested phenomenon 16) using looking time paradigm. Results from revealed that are line adults’ assumptions size-appropriate size-inappropriate distances cube ball. Adults rated congruent test as more likely than incongruent when asked real-life-based they were. distinguished sizes preferring look ball longer However, did not differ their times for or/and balls. For reason, conclude can distinguish balls but unable associations events.