In the present study, 9-, 12- and 16-month-old infants were familiarized to a block that was repeatedly lowered into a container and lifted from that container again. In the subsequent test phase, the block passed through the container opening either without making contact with the container rim or colliding with the rim in three places but…

Four experiments with the habituation procedure investigated 14-22-month-olds' ability to attend to correlations between static and dynamic features embedded in a category context. In Experiment 1, infants were habituated to four objects that exhibited invariant relations between moving features and motion trajectory. Results revealed that…

Borowski, Hunter, and Johnson (2001) found that an antecedent strategy such as white noise could decrease sleep awakenings for infants in the natural home environment. This study attempts to replicate the findings using an ABAB reversal design. A five month and one week old child, who had difficulty with waking an average of four times per night,…

Prior research suggests that infants attend to a variable in an event category when they have identified it as relevant for predicting outcomes in the category, and that the age at which infants identify a variable depends largely on the age at which they are exposed to appropriate observations. Thus, depending on age of exposure, infants may…

Two experiments are reported using a visual familiarization categorization procedure. In both experiments, infants were familiarized with sets of stimuli previously shown to contain asymmetric feature distributions that support an asymmetry in young infants' categorization of cats and dogs (i.e. infants' cat category excludes dogs but their dog…

Seven studies explored the empirical basis for claims that infants represent cardinal values of small sets of objects. Many studies investigating numerical ability did not properly control for continuous stimulus properties such as surface area, volume, contour length, or dimensions that correlate with these properties. Experiment 1 extended the…

Do young infants treat speech as a special signal, compared with structurally similar non-speech sounds? We presented 2- to 7-month-old infants with nonsense speech sounds and complex non-speech analogues. The non-speech analogues retain many of the spectral and temporal properties of the speech signal, including the pitch contour information…

Does function facilitate categorization by focusing infants' attention generally on all commonalities among objects or specifically on functionally relevant properties? After familiarization to a novel category, 18-month-olds selected another category member from a pair of previously unseen test objects. In Experiments 1 and 2, infants chose…

Previous research suggests that infants can calculate simple arithmetic (Wynn, 1992). This study sought to replicate this finding and examine how familiarization may influence response. Experiment 1 confirmed that 3- to 5-month-old infants looked longer at an incorrect outcome (1 + 1 = 1) when no familiarization trials were presented. Experiment 2…

This experiment investigated 12-month-old infants' ability to link an event's beginning to its probable ending. Following Csibra, Biro, Koos, and Gergely (2003), infants were habituated to a simple chasing event involving animated balls, and at test saw 2 possible endings: either 1 ball caught the other or failed to do so. Two controls were added…

Past research using a deferred imitation task has shown that 6-month-olds remember a 3-part action sequence for only 1 day. The concept of a time window suggests that there is a limited period within which additional information can be integrated with a prior memory. Its width tracks the forgetting function of the memory. This study asked if…

This study examined California's efforts to foster preservice preparation of early intervention assistants through a certificate program offered by community colleges, the Community College Personnel Preparation Project. Community colleges enrolled in the project must meet a series of requirements, including infusing early intervention assistant…

"Child Care Health Connections" is a bimonthly newsletter published by the California Childcare Health Program (CCHP), a community-based program of the University of California, San Francisco School of Nursing, Department of Family Health Care Nursing. The goals of the newsletter are to promote and support a healthy and safe environment…

By law each state is required to ensure that all substantiated cases of maltreated infants and toddlers are referred to Part C early intervention services. In reality, many children may not be receiving the child development services they need. Researchers have known for some time that children who have been abused are at greater risk for…

This study investigated the influence of the intervention process on the effectiveness of a program aimed at promoting positive parenting. The study involved a homogeneous intervention sample (N = 120) of mothers and their 1-, 2-, or 3-year-old children screened for high levels of externalizing problems. The alliance between mother and intervener,…