Computational models are tools for testing mechanistic theories of learning and development. Formal models allow us to instantiate theories of cognitive development in computer simulations. Model behavior can then be compared to real performance. Connectionist models, loosely based on neural information processing, have been successful in…

We argue that infant meaning-making processes are a central mechanism governing both typical and pathological outcomes. Infants, as open dynamic systems, must constantly garner information to increase their complexity and coherence. They fulfill this demand by making nonverbal "meaning"--affects, movements, representations--about themselves in…

We present a domain-general framework called "constrained attentional associative learning" to provide a developmental account for how and when infants form concepts for animates and inanimates that encapsulate not only their surface appearance but also their movement characteristics. Six simulations with the same general-purpose architecture…

The ability to form secure attachments during early childhood promotes a lifetime of emotional health. This article describes emotional milestones for babies (i.e., activities that promote self-comfort and self-control), as well as for toddlers. In the case of toddlers, a profound emotional milestone that is accomplished during the first year is…

This annual report discusses several topics related to the work of the Clinical Center for Child Development at Hokkaido University in Sapporo, Japan. The articles are: (1) "Other's Voice/Own Voice: (Re)production of Other's Voice and Its Apprenticeship in Japanese Young Children" (Shing-Jen Chen); (2) "Intersubjectivity during…