Developmental change in English-learning children's interpretations of salient pitch contours in word learning

To efficiently recognize words, children learning an intonational language like English should avoid interpreting pitch-contour variation as signaling lexical contrast, despite the relevance of pitch at other levels of structure. Thus far, the developmental time-course with which English-learning children rule out pitch as a contrastive feature has been incompletely characterized. Prior studies have tested diverse lexical contrasts and have not tested beyond 30 months. To specify the developmental trajectory over a broader age range, we extended a prior study (Quam & Swingley, 2010), in which 30-month-olds and adults disregarded pitch changes, but attended to vowel changes, in newly learned words. Using the same phonological contrasts, we tested 3- to 5-year-olds, 24-month-olds, and 18-month-olds. The older two groups were tested using the language-guided-looking method. The oldest group attended to vowels but not pitch. Surprisingly, 24-month-olds ignored not just pitch but sometimes vowels as well—conflicting with prior findings of phonological constraint at 24 months. The youngest group was tested using the Switch habituation method, half with additional phonetic variability in training. Eighteen-month-olds learned both pitch-contrasted and vowel-contrasted words, whether or not additional variability was present. Thus, native-language phonological constraint was not evidenced prior to 30 months (Quam & Swingley, 2010). We contextualize our findings within other recent work in this area.     

Gender Differences in Depressive Symptoms During Adolescence: The Contributions of Weight-Related Concerns and Behaviors

A theoretical model of gender differences in depressive symptoms during adolescence was evaluated using data from Waves I and II of the National Longitudinal Study of Adolescent Health. The theoretical model under examination was primarily informed by the gender-additive model of gender differences in depressive symptoms during adolescence proposed by Stice and Bearman (2001). In the model, it was posited that BMI would be associated with perceiving oneself as overweight, which would then lead to a higher probability of dieting, which would be associated with greater depressive symptoms. Participants were 10,864 male and female adolescents. Gender did not moderate any of the model pathways, but mediation analysis indicated that gender differences in changes in depressive symptoms were mediated by perceived weight status and dieting. Findings suggest that one explanation for girls' higher depressive symptoms in adolescence relative to boys is girls' greater tendencies to perceive themselves as overweight and to diet.     

The Mobile story: data-driven community efforts to raise graduation rates

Through sustained community organizing and strategic partnerships, the Mobile (Alabama) County Public School System is improving achievement and creating beat-the-odds schools that set and achieve high academic expectations despite the challenges of poverty and racial disparity. The authors chart how Mobile's Research Alliance for Multiple Pathways, funded through the U.S. Department of Labor's Multiple Pathways Blueprint Initiative, is identifying gaps in services throughout the community, analyzing the data about dropouts, benchmarking other communities, studying best practices, and mobilizing the community to expect and demand higher graduation rates. These activities are resulting in early identification of off-track students and coordination of school- and community-based reforms.     

Social identity and emotion: the meeting of psychoanalysis and sociology

This paper attempts to develop a framework for understanding social identities by linking together ideas from two disciplines which are normally pursued separately from each other namely, sociology and psychoanalysis. Drawing on the work of Craib (1989, 1994, 1998a) Bion (1961) and Scheff (1994a) in psychoanalysis and Mann (1986, 1993a, 1995, 1997) in sociology, the main argument is that social identities such as national identity are not just the result of sociological factors such as social classification, boundaries and processes of identification, they also have an important emotional dimension which coexists with but cannot be reduced to the social. In order to understand the persistence and indeed strengthening of nationalism and national identities in the contemporary world, we need to take account not just of changes in the inter‐relationships between economics, politics and culture at the global level, but also of the ways in which they may now be coming to inter‐relate with the kind of unconscious psychological processes and strong emotions such as love, hate, shame and anger, which occur within groups. The paper begins with a critique of existing sociological approaches to identity followed by an attempt to develop an alternative approach based on the psychoanalytic concept of emotional inter‐subjectivity. By means of a case study of British trade unions in the 1980’s and 1990’s, it then goes on to show how unconscious psychological processes and strong feelings may now be articulating with sociological processes to form a mutually reinforcing loop which is strengthening and reinforcing nationalism in a sociological context in which other aspects of society are globalising. Finally, it is suggested that the reason why sociologists need to take feelings seriously in the contemporary world is that they may now be combining with sociological changes to strengthen and reinforce nationalism and the principle of nationality in situations in which it might be more productive to question it.     

The effectiveness of medical interventions aimed at preventing preterm birth: a literature review

Background

Preterm birth is a significant global health problem with serious short and long term consequences. This paper reviews the research literature to answer the question how effective are the medical interventions that aim to reduce the rates of preterm birth?

Methods

A systematic search was carried out in CINAHL, Cochrane, Medline and Embase in relation to following medical treatments aimed at preventing preterm births: anti-infective medications, tocolytics, progesterone and cervical cerclage. The research underpinning each type of intervention is critically analysed in order to establish the validity of knowledge claims that are made for each type of intervention.

Findings

In relation to reducing the rates of preterm births, anti-infectives are only effective in the presence of known infection. Screening for infections during pregnancy is ineffective. Tocolytic agents are not effective in decreasing the preterm birth rates. Progesterone seems to be effective in a select group of pregnant women at higher risk of preterm birth. Cervical cerclage plays a small and an occasional role in preventing some preterm births.

Conclusions

This literature review demonstrates that medical interventions aimed at preventing, not just delaying, preterm birth, are not effective at a population level. Providing holistic, antenatal midwifery care for women living in socio-economic disadvantage and/or with an increased risk of preterm birth seems to be a promising strategy to address the negative effects of the social determinants of disease and thus to reduce the rate of preterm births at an individual and a population level.     

Telephone triage and midwifery: A scoping review

Background

Midwives use telephone triage to provide advice and support to childbearing women, and to manage access to maternity services. Telephone triage practises are important in the provision of accurate, timely and appropriate health care. Despite this, there has been very little research investigating this area of midwifery practice.

The Relationship Between Cognitive Ability and Experiences of Vaginal,Oral, and Anal Sex in the United States

Few studies have investigated the sexual development of populations with low cognitive abilities in the United States. This article examines the relationship between cognitive ability and various sexual experiences from adolescence (ages 12 to 18) to early adulthood (ages 28 to 34). Data were from 13,845 respondents interviewed at Waves I and IV of the National Longitudinal Study of Adolescent to Adult Health (Add Health), a probability sample of adolescents in the United States followed from adolescence to adulthood. Adjusted logistic regression models were used to study relationships between cognitive ability, approximated by the Add Health Picture Vocabulary Test (AHPVT), and experiences of vaginal, oral, and anal sex. After controlling for biological sex, age, race/ethnicity, and socioeconomic status (SES), individuals in the lowest cognitive ability group had significantly lower odds of experiencing each type of sex than those in the average ability group. Although individuals in the highest cognitive ability group had significantly lower odds of experiencing vaginal intercourse than those in the average ability group, this association did not remain significant when analyses were stratified by biological sex. These differences in experiences have implications for future health and warrant further study to understand policy implications for sexual health services and education.