Infant Auditory Temporal Acuity: Gap Detection

The development of auditory temporal acuity during infancy was examined in 3-, 6-, and 12-month-old infants and in adults using the gap detection paradigm. Listeners detected a series of gaps, or silent intervals, or variable duration in a broadband noise. In order to vary the acoustic frequencies available to the listener, a high-pass noise was used to mask frequencies above specified cutoffs. High-pass maskers with cutoffs of 500, 2,000, and 8,000 Hz were used. The minimum detectable gap was determined using the Observer-based Psychoacoustic Procedure. The thresholds of 3- and 6-month-olds were considerably poorer than those of the adults, although the effect of masker condition was about the same for these 3 groups. The thresholds of 12-month-olds were significantly worse than the adults when the stimulus was unmasked or when the masker cutoff frequency was 2,000 or 8,000 Hz. When the masker cutoff frequency was 500 Hz, 12-month-olds fell into 2 groups: some had gap thresholds that were about the same as 3- and 6-month-olds, while some had gap thresholds that approached those of adults. In a second experiment, a larger group of 12-month-olds were tested with a 500-Hz masker cutoff. Average performance of 12-month-olds was about the same as that of 3- and 6-month-olds in Experiment 1. Some infants attained thresholds close to those of adults. Thus, gap detection thresholds are quite poor in infants, although the similarity of the effect of frequency on performance in infants and adults suggests that the mechanisms governing temporal resolution in infants operate qualitatively like those in adults.     

‘Across the Divide’: Developing Professional Learning Ecosystems in STEM Education

Research in Science Education - This paper reports the findings from a cross-sector research project designed to question how the development of university-school partnerships can influence...     

What's so hard about teaching science?

Early Childhood Education Journal - Do you feel that science is sifficult to understand and hard to teach? Do you designate only a small amount of time for a science period? Are you afraid of the...     

Examining the Process and Outcome of Career Counseling for Different Types of Career Counseling Clients

Using cluster analysis, we identified two types of career counseling clients: (a) Clients with moderate levels of career-related distress, discomfort, and uncertainty and (b) clients with high levels of career concerns, personal distress, and stigma about career counseling. The more distressed group expressed lower evaluations of a career counseling session and perceived their counselors as providing fewer action-oriented counseling skills than the less distressed group. No differences emerged in terms of client's perceptions of the therapeutic relationship. The practical implications and limitations of these results are discussed.     

The Impact of Postnatal Depression and Associated Adversity on Early Mother-Infant Interactions and Later Infant Outcome

The impact of maternal depression and adversity on mother-infant face-to-face interactions at 2 months, and on subsequent infant cognitive development and attachment, was examined in a low-risk sample of primiparous women and their infants. The severe disturbances in mother-infant engagement characteristic of depressed groups in disadvantaged populations were not evident in the context of postpartum mood disorder in the present study. However, compared to well women, depressed mothers were less sensitively attuned to their infants, and were less affirming and more negating of infant experience. Similar difficulties in maternal interactions were also evident in the context of social and personal adversity. Disturbances in early mother-infant interactions were found to be predictive of poorer infant cognitive outcome at 18 months. Infant attachment, by contrast, was not related to the quality of 2-month interactions, but was significantly associated with the occurrence of adversity, as well as postpartum depression.     

Contributions of Male and Female Guests and Hosts to Peer Group Entry

92 7–9-year-old children (47 girls) were observed while attempting to join 2 relatively unfamiliar same- or opposite-sex peers who were playing a board game. Female guests were less obtrusive than male guests in their entry approaches, whereas male guests were more active and assertive. Guests were less behaviorally constrained when approaching same- than opposite-sex hosts. Female hosts were more attentive to the guests than male hosts, who tended to ignore the newcomers. Successful guests received initiations from the hosts, responded contingently to host initiations, and performed activity-related behavior. Since female hosts initiated more behavior to the guests than male hosts, and female guests were more contingently responsive than male guests, girls entering female groups were the most successful. These findings support the thesis that peer group entry processes and outcomes are affected by the personal characteristics and contexts of both the entering children and their hosts.     

Intergenerational transmission of social anxiety: the role of social referencing processes in infancy

Responses to an unfamiliar adult were examined in infants of mothers with social phobia ( N = 79) and infants of nonanxious comparison mothers ( N = 77) at 10 and 14 months in a social referencing paradigm. On each occasion, a female stranger first interacted with the mother and then approached and interacted with the infant. Over time, infants of mothers with social phobia showed increasing avoidance of the stranger, particularly when they were behaviorally inhibited. In boys, maternal social phobia was associated with increasing fearful responses. Infant avoidance was predicted by expressed maternal anxiety and low levels of encouragement to interact with the stranger. The findings are discussed in relation to theories concerning the intergenerational transmission of social anxiety.     

Rural Neighborhood Context,Child Care Quality,and Relationship to Early Language Development

Research Findings: Prior research with older urban children indicates that a disadvantaged neighborhood context is associated with poorer early development, including poorer verbal ability, reading recognition, and achievement scores among children. Neighborhood disadvantage in rural communities and at younger age levels may also be related to development; however, this relationship has received little examination. In this study we utilized data from the Family Life Project, a representative sample of babies born to mothers in poor rural counties in North Carolina and Pennsylvania, to address questions related to the relationship between neighborhood context (disadvantage and safety) and children's early language development. We examined the mediation of this relationship by child care quality. We also examined geographic isolation and collective socialization as moderators of the relationship between neighborhood context and child care quality. Results indicated that although neighborhood disadvantage did not predict children's development or child care quality, neighborhood safety predicted children's receptive language, with child care quality a partial mediator of this relationship. Collective socialization but not geographic isolation moderated the relationship between neighborhood safety and child care quality. Practice or Policy: Implications for policy, practice, and future research are discussed, including improving community safety through community policing, neighborhood watch, and social networks and increasing access to quality child care.