The relationship between neonatal visual information-processing and the burst-pause pattern of nonnutritive sucking was explored. (JMB)

Examines the motivational or affective message and impact of infants' cries on nonparents, primiparous parents, and multiparous parents. Cries were organized into three levels (difficult, average, easy) by temperament ratings and spectographic analysis. Physiological and self-report responses to audiotapes of infants' cries were obtained from 36…

The reactions of 24 eight-month-old infants and their mothers were observed when approached in a standard laboratory situation by female strangers whose approach was either fast or slow. Mothers were significantly more "wary" than infants, particularly as the proximity of the stranger increased. (Author/RH)

An infant control habituation-recovery procedure was used to study 3-month-old infants' discrimination of sad, happy, and surprise facial expressions. (Author/JMB)

Twenty-two infants (6.7 to 12.3 months old) were tested on a visual-cliff apparatus both crawling and in a walker. Results suggest a maturation-based explanation of cliff-avoidance in infants. (CM)

Four groups of infants, 4 1/2 to 5 1/2 months of age, were presented with repeated speech stimuli which were synthesized exemplars of the sound, "baba," natural exemplars of "baba" or "kaba," or novel syllables on each trial. (RH)

Infant cortisol and behavioral responses to receiving one versus two inoculations on one pediatric office visit were observed at two and six months of age. The findings indicate a developmental trend for a decline over age in adrenocortical reactivity to inoculation for infants showing a cortisol release following perturbation. Results were…

Assessed delayed-response performance in 120 infants 7, 9, and 11 months old. Correct response was identified as either retrieval of a hidden object or a gaze toward its location. Performance improved with age, was above chance for each age group in each condition, and was more often correct for gaze response, suggesting a significant effect of…

The relationship between visual stimulus intensity and finger movements was examined in infants ranging in age from 10 to 15 weeks and from 20 to 25 weeks. Infants were shown a cone that varied in size, brightness, and distance from them. (Author/JMB)

Mothers of 48 infants approximately 12 months old displayed either positive or neutral affect while their infants responded to pleasant, ambiguous, or aversive toys. On the first trial maternal affect had no effect; on the second trial, positive maternal affect resulted in more positive infant responses, but only for the ambiguous toy. (Author/RH)

Purpose of this experiemnt was to systematically investigate the behavioral effects of vertical rocking at different frequencies up to 1.5 Hz. (Authors/CB)

Examined changes in cortisol and behavioral responses in 83 infants. Found that salivary cortisol responses before and after inoculation were high at 2 months, decreased between 2 and 4 months, remained stable, then declined again between 6 and 15 months. Found some evidence that emergence of circadian rhythm in cortisol might be related to early…

Notes that 4-month olds who show a low threshold to become distressed and motorically aroused to unfamiliar stimuli are more likely than others to become fearful and subdued during early childhood, while infants who show a high arousal threshold are more likely to become bold and sociable. Considers implications for psychopathology and relation…