Presented five-month olds in English-speaking families with approval and prohibition vocalizations in infant-directed (ID) and adult-directed (AD) English, and in ID German, Italian, Japanese, and nonsense English. Infants responded differently to ID approval and disapproval in all languages except Japanese. Differential responses to approval and…

In one experiment, infants were presented with their mother, a female stranger, and an object. In a second experiment, infants were presented with a female stranger and three objects with features that resembled an abstract, smiling face. In both experiments, infants smiled more to the person than to the objects. (BC)

Findings demonstrate a finer partitioning of auditory space near midline than in hemifields. Discusses implications for an understanding of the development of auditory processing mechanisms in sound localizations. (RH)

Describes Special Caretakers Program, project in which employees of Hahnemann University Hospital in Philadelphia (Pennsylvania) became foster parents for hospital's boarder babies, newborns and children medically ready for discharge who often waited weeks or months for appropriate foster home. Discusses problems and solutions encountered in the…

The behavioral and cortisol responses of Japanese and Caucasian American infants, four months of age, were observed during and following routine inoculation. The Caucasian American group showed a more intense initial affective response and a longer latency to quiet than the Japanese group; the Japanese group showed a greater cortisol response than…

Administered the Simple Adjective Test to 35 black South-African women in early pregnancy to explore association of maternal dominance and male births. Responses revealed that above-average dominance in mothers may be linked to higher number of male births. (LBT)

Examined the mediating role of maternal sensitivity for the association between maternal attachment representations and the quality of infant-mother attachment. Found that autonomous mothers and mothers in secure relationships were more sensitive at home than nonautonomous mothers and mothers in nonsecure relationships, respectively. Infants in…

Examined whether infants succeed in mapping novel adjectives applied ostensively to individual objects and to other objects with the same property. Found that infants hearing a target labeled with novel adjectives were more likely than those hearing no novel words to choose a matching test object when all objects were drawn from same basic level…

Examines how babies exposed to two languages simultaneously acquire the meanings of words across their two languages. Particular focus was on whether babies know that they are acquiring different lexicons right from the start or whether early bilingual exposure causes them to be semantically confused. (Author/VWL)

Mathematics is a uniquely human capacity. Studies of animals and human infants reveal, however, that this capacity builds on language-independent mechanisms for quantifying small numbers ([less than] 4) precisely and large numbers approximately. It is unclear whether animals and human infants can spontaneously tap mechanisms for quantifying large…

Previous research on speech perception in both adults and infants has supported the view that consonants are perceived categorically; that is, listeners are relatively insensitive to variation below the level of the phoneme. More recent work, on the other hand, has shown adults to be systematically sensitive to within category variation [McMurray,…

This study examined the development of infants' ability to perceive, learn, and remember the unique face-voice relations of unfamiliar adults. Infants of 2, 4, and 6 months were habituated to the faces and voices of 2 same-gender adults speaking and then received test trials where the faces and voices were synchronized yet mismatched. Results…

Adults use both first-order, or categorical, relations among features (e.g., the nose is above the mouth), and second-order, or fine spatial relations (e.g., the space between eyes), to process faces. Adults' expertise in face processing is thought to be based on the use of second-order relations. In the current study, 5-month-olds detected…

Children at a very young age are ready and willing to discover the world through tasting, smelling, hearing, touching, and seeing. As they emerge into an awesome world of sounds, touches, movements, lights, tastes and smells from birth, infants must learn to regulate this overwhelming amount of sensory stimulation. At first, an innate sensory…

Changes in distress and problem behaviors of 38 infants/toddlers were examined after children transitioned from familiar to new classrooms to look at effects of non-continuity of caregiver. Child's age, classroom quality, teacher sensitivity, and transitioning with a peer were examined as possible mediators. Results suggest that transitions were…