Evaluates the validity of extrapolating research findings from the Monadic Phases Coding System (MP) to the Maximally Discriminative Facial Movement Coding System by coding videotapes of 12 4-month-old infants engaged in mother-infant interaction. (RJC)

Examined a sample of 177 infants (age 9 through 12 months) with iron deficiency anemia (IDA) from low-income French, African, and North African Muslim families in Paris. Found a higher than normal incidence of otitis media and respiratory diseases such as bronchitis among the infants. Also examined the relationship between infant IDA and child…

Event-related potentials (ERPs) were recorded from infants shown sets of familiar faces presented frequently and infrequently, and a set of novel faces presented infrequently, and correlated with infant emotional behavior and cortisol levels. Found that infants scoring higher on the normative ERP factor were more distressed during parent…

Discusses the term concept and claims that the use of certain strategies to overcome the loss of multiplication facts due to brain damage is evidence of conceptual knowledge and that infants have rudimentary arithmetical knowledge. (MKR)

Provides overview, background, vision, and goals of a report from the Advisory Committee on Services for Families with Infants and Toddlers. Department of Health and Human Services Secretary Donna Shalala pledged to use the guidelines presented to help establish "Early Head Start," a new support and services program for families with…

Three experiments examined whether the perception and retention of feature relations, thought to be critical for object recognition in adults, are evident in early infancy. Three month olds' 24-hour retention was disrupted when features of a 6-item mobile were recombined, indicating that they not only encode feature relations but also remember…

Four experiments investigated conceptual categorization in 7- to 11-month-old infants. Data revealed global differentiation of animals and vehicles, with lack of differentiation of basic level categories within the animal domain, in contrast to data from other studies designed to assess perceptual categorization. Results suggest that infants may…

This study of early word learning focused on the status of object words in early vocabularies. Fourteen children were followed from nine months to two years of age, and monthly vocabulary growth was analyzed. Results indicated that object words represented approximately one-third, on average, of the different words the children learned. (TJQ)

Four studies examined aspects of expressive behavior development in face-to-face mother-infant interactions. Found evidence of the morphological stability of discrete emotion expressions and that young infants respond differentially to positive conditions based on mother's interest and joy expressions and negative conditions based on sadness and…

Event-related brain potentials (ERPs) were recorded from 6-month-old infants with and without Down syndrome presented with a visual recognition memory task. The ERP morphology was the same for both groups. The chronometry of information processing by infants with Down syndrome was similar to or faster than "normal" infants' processing.…

Within a small bounded space, the location of a hidden object can be coded in terms of distance information, general area of hiding, or the boundary of the space. The use of these three coding strategies by infants was examined using a visual search task. Results indicated boundary information and the nature of the change influenced coding of…

Replies to Gholson's commentary (PS 522 655) on the article by Coldren and Colombo in this monograph. Discusses limitations in the shift procedure methodology traditionally used in research on discrimination learning, and considers the use in future research of methodologies that can precisely decompose children's responses to feedback during…

Three experiments explored the effect of introducing novel information about a central target after a short delay on six-month-old's recognition of the original target, the novel exposure target, and a completely novel one. They found that the infants' memory of a central target is resistant to impairment by conflicting postevent information after…

A series of 4 experiments involving 96 infants aged 6 to 17.5 months examined their capacities to detect repeated target words in fluent speech. Taken together, study results indicate that some ability to detect words in fluent speech contexts is present by 7.5 months of age. (SLD)

One experiment determined that the minimum angle at which infants can discriminate 2 sound presentations decreases substantially toward 48 weeks of age. In 3 succeeding experiments, infants aged 16, 20, and 28 weeks were able to discriminate sounds presented to each ear between 50 and 75 microseconds apart. (BC)