Evidence suggests vocal production learning in a cross-fostered Risso’s dolphin (<Emphasis Type="Italic">Grampus</Emphasis><Emphasis Type="Italic">griseus</Emphasis>)

Vocal learning is a rare skill in mammals, and we have limited information about the contexts in which they use it. Previous studies suggested that cetaceans in general are skilled at imitating sounds, but only few species have been studied to date. To expand this investigation to another species and to investigate the possible influence of the social environment on vocal learning, we studied the whistle repertoire of a female Risso’s dolphin (Grampus griseus) that was stranded at an early age and was subsequently raised in a group of bottlenose dolphins (Tursiops truncatus). We show that this cross-fostered animal produced vocal signals more akin to those of its Tursiops poolmates than those of Risso’s dolphins in the wild. This is one of very few systematic cross-fostering studies in cetaceans and the first to suggest vocal production learning in the Risso’s dolphin. Our findings also suggest that social experience is a major factor in the development of the vocal repertoire in this species.     

Assimilation and Heritage Identity: Lessons from the Coptic Diaspora

Many first generation immigrants share a concern for retaining their heritage culture, though they still aspire to successfully assimilate into the country of residence society. Assimilation theories suggest facilitating factors for positive assimilation but differ in terms of whether the loss of heritage culture is inevitable. The Coptic diaspora illustrates that upward mobility can be achieved without loss of heritage identity. Religious structures can play an important role not only in sustaining heritage identity but also facilitating positive assimilation. A review of the Coptic Orthodox Church’s ministry in diaspora, along with findings of a Coptic diaspora survey may offer lessons for other immigrant groups. The study affirms some theoretical findings and raises questions for future research.     

In Their Own Words: Mental Health and Quality of Life of West African Refugees in Nigeria

Refugees are exposed to extreme stressors and are therefore at risk of mental health and social problems. Other issues refugees have to cope with include the loss of their country, culture, language, profession, family, friends, and future plans. Much of the studies that have been done on refugee mental health have not attempted to explain what these experiences mean to these individuals. Thus, this study provides explorative data on the mental health and quality of life of West African refugees living in Nigeria in order to understand their views and perspectives. This study carried out in 2010 employed qualitative methods; a total of four focus group discussions (FGDs) were conducted among adult male and female refugees purposively selected at the Oru Refugee Camp, Ogun State, Nigeria. Respondents described quality of life as a major determinant of mental health status. Most of the participants believed that women were more predisposed to mental ill health due to their sensitive emotional make-up. Factors identified by respondents as affecting mental health and quality of life among refugees included poverty, unemployment, physical health, housing and environment, discrimination, stigmatization, and insecurity. Refugees rated their mental health and quality of life as poor due to the aforementioned factors. Recommendations were made to the international community, national and local governments to invest more on education, provision of vocational and entrepreneurial skills as well as adequate housing in order to improve the mental health and quality of life of refugees.     

Socioeconomic Diversity Among African Immigrants in the United States: An Intra-African Immigrant Comparison

Recent studies on Black immigrants in the USA report higher than average socioeconomic and educational attainment for African immigrants. Based on an intra-African immigrant comparison, we examine the generalizability of this finding to African groups of differing countries and regions using data from the 1990 and 2000 5 % U.S. census Integrated Public Use Microdata Samples (IPUMS). We specifically ask whether hourly earnings of African immigrants vary by region of origin. Results of our analyses reveal that sending region is an important determinant of variations in hourly earnings among African immigrants. Also, data indicate that both race and gender are significantly associated with earning outcomes; with the earnings of males and whites significantly higher than those of females and blacks. We discuss these findings in the context of the so-called “black immigrant success story.”     

Socioeconomic Adaptation of Post-1991 Eastern European Immigrants in the USA

Very little is known about new Eastern European immigrants in the USA, despite the rapid growth of this immigrant population. In particular, their socioeconomic adaptation to American life has not been systematically studied. Extending previous research on post-1965 immigration to the USA, this study examines the socioeconomic adaptation of post-1991 Eastern European immigrants by focusing on their educational attainment, occupational status, and income. We test our hypotheses using data from the pooled 2006–2010 American Community Surveys and ordinary least squares regression and logistic regression. The results show that new Eastern European immigrants tend to be highly educated and professional, but their income is surprisingly low. The results of regression models indicate that the individual characteristics of immigrants largely explain their socioeconomic adaptation. In addition, such conditions in the countries of origin as gross domestic product and political and personal freedom also influence their socioeconomic performance to some extent. The implications of findings are discussed.     

Theology Matters: Comparing the Traits of Growing and Declining Mainline Protestant Church Attendees and Clergy

Using surveys, this study gathered and examined demographic and religious characteristics of attendees and clergy of a group of growing mainline Protestant churches in Canada and compared them to those from declining mainline Protestant churches from the same geographical region and group of denominations. In total, 2255 attendees from 22 churches (13 declining and 9 growing) participated along with their church’s clergy (N = 29). Several notable differences between the characteristics of growing and declining churches were identified. When other factors were controlled for in multivariate analysis, the theological conservatism of both attendees and clergy emerged as important factors in predicting church growth.     

Cognitive Load Differentially Impacts Response Control in Girls and Boys with ADHD

Children with attention-deficit hyperactivity disorder (ADHD) consistently show impaired response control, including deficits in response inhibition and increased intrasubject variability (ISV) compared to typically-developing (TD) children. However, significantly less research has examined factors that may influence response control in individuals with ADHD, such as task or participant characteristics. The current study extends the literature by examining the impact of increasing cognitive demands on response control in a large sample of 81children with ADHD (40 girls) and 100 TD children (47 girls), ages 8–12 years. Participants completed a simple Go/No-Go (GNG) task with minimal cognitive demands, and a complex GNG task with increased cognitive load. Results showed that increasing cognitive load differentially impacted response control (commission error rate and tau, an ex-Gaussian measure of ISV) for girls, but not boys, with ADHD compared to same-sex TD children. Specifically, a sexually dimorphic pattern emerged such that boys with ADHD demonstrated higher commission error rate and tau on both the simple and complex GNG tasks as compared to TD boys, whereas girls with ADHD did not differ from TD girls on the simple GNG task, but showed higher commission error rate and tau on the complex GNG task. These findings suggest that task complexity influences response control in children with ADHD in a sexually dimorphic manner. The findings have substantive implications for the pathophysiology of ADHD in boys versus girls with ADHD.     

Depressive Symptoms and Conversational Self-Focus in Adolescents’ Friendships

This multi-method, longitudinal study considered the interplay among depressive symptoms, aversive interpersonal behavior, and interpersonal rejection in early and middle adolescents’ friendships. In particular, the study examined a newly identified interpersonal process, conversational self-focus (i.e., the tendency to redirect conversations about problems to focus on the self). Traditional interpersonal theories of depression suggest that individuals with depressive symptoms engage in aversive behaviors (such as conversational self-focus) and are rejected by others. However, in the current study, not all adolescents with depressive symptoms engaged in conversational self-focus and were rejected by friends. Instead, conversational self-focus moderated prospective relations of depressive symptoms and later friendship problems such that only adolescents with depressive symptoms who engaged in conversational self-focus were rejected by friends. These findings are consistent with current conceptualizations of the development of psychopathology that highlight heterogeneity among youth who share similar symptoms and the possibility of multifinality of outcomes.