A head-mounted camera was used to measure head direction. The camera was mounted to the forehead of 20 6- and 20 12-month-old infants while they watched an object held at 11 horizontal (-80° to + 80°) and 9 vertical (-48° to + 50°) positions. The results showed that the head always moved less than required to be on target. Below 30° in the…

We treated the liquid refusal of a 15-month-old girl using 2 antecedent manipulations: flipped spoon and chin prompt. Use of the chin prompt in the absence of the flipped spoon failed to produce increases in mouth clean (a product measure of swallowing). By contrast, modest increases in mouth clean resulted from the implementation of the flipped…

Relations between infant-mother attachment security at 15 months and infants' (N = 206) joint attention behaviors (a) with an experimenter at 8 and 15 months, and (b) with their mothers at 15 months were investigated. No concurrent or longitudinal relations were observed between attachment security and infants' tendency to respond to an…

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…

This study was designed to determine whether infants actually play with crib toys, and whether the toys affect the duration or onset of sleep. (CS)

This study concerns the onset and early development of wariness in human infants. The data suggest positing a hierarchy of aversive reactions, from distress reactions to acquired fears. (Author/GB)

Behavioral scientists are using established experimental methods to show that fetuses can and do learn. The methodology employed and results obtained from several studies are reported. (JN)

Describes a graphic analysis of the disorganized sucking patterns in premature infants, and points out the psychoprophylactic importance of individually appropriate feeding procedures which should be used in the care of premature infants. (Author/CS)

Initial experiment demonstrated operant acquisition of an instrumental hand-pulling response in 4-8-month-old infants; the effect achieved with contingent, noncontingent, delayed reinforcement, and the suppression, recovery, and facilitation effects of noncontingent stimulation are discussed. (Author)

In a naturalistic behavioral stdy, it was found that prematures have significantly more endogenous smiling than full-term newborns. (Authors)

Presents a description of a neonatal monitoring system and the studies used in its validation. (SDH)

This paper describes the initial organization of the infant's reaction to having his vision occluded by an opaque cloth; traces the development of this reaction over the first six months; and probes the role the occlusion of vision plays in provoking the reaction. Fifty videotaped sessions of infants during two conditions - eyes covered with an…

The study was designed to investigate the exploration and attachment behavior of young children in a strange situation in the presence of: (1) an individual to whom the child was attached (the mother); (2) an inanimate object with which the child was highly familiar (favorite toy); and (3) a novel inanimate object (an unfamiliar toy). The effect…

This experiment asked whether infants at 5 months perceived an invariant over four types of rigid motion (perspective transformations), and thereby differentiated rigid motion from deformation. Four perspective transformations of a sponge rubber object (rotation around the vertical axis, rotation around the horizontal axis, rotation in the frontal…