Statistical learning of adjacent and nonadjacent dependencies among nonlinguistic sounds

Previous work has demonstrated that adults are capable of learning patterned relationships among adjacent syllables or tones in continuous sequences but not among nonadjacent syllables. However, adults are capable of learning patterned relationships among nonadjacent elements (segments or tones) if those elements are perceptually similar. The present study significantly broadens the scope of this previous work by demonstrating that adults are capable of encoding the same types of structure among unfamiliar nonlinguistic and nonmusical elements but only after much more extensive exposure. We presented participants with continuous streams of nonlinguistic noises and tested their ability to recognize patterned relationships. Participants learned the patterns among noises within adjacent groups but not within nonadjacent groups unless a perceptual similarity cue was added. This result provides evidence both that statistical learning mechanisms empower adults to extract structure from nonlinguistic and nonmusical elements and that perceptual similarity eases constraints on nonadjacent pattern learning. Supplemental materials for this article can be downloaded from pbr.psychonomic-journals.org/content/supplemental.     

Telomeres in a Life-Span Perspective: A New "Psychobiomarker"?

ABSTRACT— In order to more fully understand associations between psychological stress and health, it is helpful for researchers to identify "psychobiomarkers," or biological measures that are regulated in part by psychological function and that predict longevity. Telomere length appears to be such a measure. Telomeres, the protective caps at the tips of chromosomes, shorten with age, and this shortening predicts disease and longevity. Leukocyte telomere length may be best viewed through a life-span approach, as it reflects in part the cumulative number of cell divisions that have occurred and the long-term biochemical environment. Recently, a critical mass of studies demonstrated that telomeres appear to shorten with chronic stress, although the mechanisms are unknown. This paper reviews what appear to be malleable determinants of rate of telomere attrition, focusing on early life chronic stressors and metabolic adversity (poor nutrition during development, and obesity). The next generation of research will benefit from experimental and longitudinal models integrating genetic variation, social environments, life experience, and health behaviors.     

Impact of Conflict on Mental Health in Northern Ireland: The Mediating Role of Intergroup Forgiveness and Collective Guilt

The aim of the present research was to investigate the mediating role of group-level forgiveness and guilt in the relationship between victimhood (the extent to which the conflict affected an individual's life), exposure to violence (the level of violence in their area of residence), and group identity on the one hand, and mild psychiatric morbidity on the other. Specifically the study focused on the psychological impact of the ethnopolitical conflict in Northern Ireland, utilizing people's identification with either the Catholic or Protestant community. Our results revealed that intergroup forgiveness mediated the relationship between both victimhood and group identification, as predictors, and mild psychiatric morbidity. Collective guilt, on the other hand, mediated the relationship between both exposure to violence and group identification, as predictors, and intergroup forgiveness. Overall this study shows that forgiveness and collective guilt can act as mediators in the relationship between impact of ethnopolitical conflict and mental health, at the group level, and thus demonstrates their centrality to the reconciliation process. Implications for intergroup reconciliation initiatives in Northern Ireland are discussed.     

Getting it right by getting it wrong: When learners change languages

When natural language input contains grammatical forms that are used probabilistically and inconsistently, learners will sometimes reproduce the inconsistencies; but sometimes they will instead regularize the use of these forms, introducing consistency in the language that was not present in the input. In this paper we ask what produces such regularization. We conducted three artificial language experiments, varying the use of determiners in the types of inconsistency with which they are used, and also comparing adult and child learners. In Experiment 1 we presented adult learners with scattered inconsistency - the use of multiple determiners varying in frequency in the same context - and found that adults will reproduce these inconsistencies at low levels of scatter, but at very high levels of scatter will regularize the determiner system, producing the most frequent determiner form almost all the time. In Experiment 2 we showed that this is not merely the result of frequency: when determiners are used with low frequencies but in consistent contexts, adults will learn all of the determiners veridically. In Experiment 3 we compared adult and child learners, finding that children will almost always regularize inconsistent forms, whereas adult learners will only regularize the most complex inconsistencies. Taken together, these results suggest that regularization processes in natural language learning, such as those seen in the acquisition of language from non-native speakers or in the formation of young languages, may depend crucially on the nature of language learning by young children.     

Peer-Enhanced Weight Management Treatment for Overweight Adolescents: Some Preliminary Findings

The purpose of this study was to evaluate the utility of adding a peer-based intervention (peer-based skills training [PBST]) to a traditional cognitive–behavioral weight management intervention for overweight adolescents. Sixteen adolescents between the ages of 13 and 16 years and between 30 and 80$percnt; overweight participated in a 16-week group-based weight management program with the addition of peer-based skills training. Adolescents and parents separately attended 60-min group sessions addressing diet, physical activity, and behavior modification techniques. In addition, adolescents attended a 90-min PBST session each week. Group activities included both mental and physical challenges that fostered development of trust, social skills, and self-confidence. Measures of height and weight, as well as questionnaires assessing self-concept, physical self-worth, and social functioning, were obtained prior to treatment, immediately following the 16-week intervention, and 6 months after completion of active treatment. Paired t tests revealed significant improvements over time in measures of physical self-worth, physical appearance and romantic appeal. Adolescents lost an average of 14.73 pounds from the start to end of treatment, and this was maintained at 6-month follow-up. These preliminary findings provide some support for the application of a novel peer-based program as an adjunctive treatment for adolescent weight management intervention.     

Lessons We Learned: Stories of Volunteer–Patient Communication in Hospice

As our population ages, the questions of how to care for and communicate with the dying have become increasingly important areas for research. This study identifies hospice volunteers as both important members of the hospice team and as an underresearched source of wisdom regarding end-of-life communication. This article presents preliminary findings from a longitudinal, ethnographic study of volunteer–patient relationships in hospice. Three themes related to volunteer–patient communication are described using stories from hospice volunteers. The article concludes with reflections on end-of-life communication as experienced by the volunteers, and suggests that narrative ethnography is an appropriate and effective research method for the study of hospice and end-of-life care.     

Pilot study of relationship between fertility risk and bargaining

Competition for resources to support a healthy pregnancy and later offspring was likely very important for ancestral women. Therefore, it was predicted that women evolved a propensity for intrasexual competition over resources during times of their highest conception risk. To investigate this hypothesis, women played a series of ultimatum games, bargaining games that test participants' willingness to share a monetary stake. During periods of high conception risk, intrasexual competition increased as evidenced by lower offers to share a stake with others as well as higher rates of rejection of offers.     

Training Community Members to Serve as Paraprofessionals in an Evidence-Based,Prevention Program for Parents of Preschoolers

Widespread dissemination of evidence-based programs for underserved populations may require non-traditional means of service provision. Collaboration with paraprofessionals from communities that are targeted for intervention holds promise as a delivery strategy that may make programs more accessible and acceptable, especially to parents living in low-income, urban neighborhoods. We describe a paraprofessional training program for individuals living in a community targeted for preventive intervention based on high levels of poverty and community violence. The design and implementation of the training program are described in the context of issues related to the use of paraprofessionals in community-based, preventive interventions with parents of young children. We also provide insight into lessons learned from a feasibility study as well as general guidelines for the development of paraprofessional training programs for delivery of evidence-based programs.     

“ONCE UPON A TIME THERE WAS AN S.S. OFFICER”: THE HOLOCAUST BETWEEN HISTORY AND FICTION IN ELSA MORANTE'S LA STORIA

The twentieth-century Italian Jewish novelist Elsa Morante's La Storia, published in 1974, is rarely included in the canon of Holocaust literature today, yet contains considerable content regarding the Italian experience of the Holocaust. In this essay I examine how Morante's proclaimed artistic principles, in particular her notion of “verità poetica”, “poetic truth”, and “storia”, “history” or “story”, affect her depiction of the Holocaust. I also trace what I term an “anxiety of absence” in La Storia, which I believe explains not only Morante's use of characters who are unreliable witnesses to the Holocaust as it unfolds in Rome, but also explains her ultimate swerve away from her artistic ideals and her problematic use of historical sources.