Discusses responses to Needham's research on infants' use of featural, physical and experiential information to segregate displays. Considers characterization of different kinds of information infants use when segregating objects. Discusses relations between processes underlying object segregation. Considers the roles of visual versus linguistic…

Responds to Needham and Baillargeon's criticisms and offers an alternative resolution of the conflicting results between the laboratories regarding abilities of infants less than 12 months to use property/featural information for object individuation. Maintains that kind concepts are acquired as infants approach their first birthday and that…