Is the word length effect in STM entirely attributable to output delay? Evidence from serial recognition

Although it is generally accepted that the word length effect in short-term memory operates through output delay or interference, there is less agreement on whether it also influences performance through its impact on rehearsal. We investigated this issue by studying the effect of word length on recall and on a recognition task in which output delay was controlled. Word sequences were repeated exactly, or with one pair of words reversed. Two experiments using auditory presentation showed clear word length effects for both recall and serial recognition, although the magnitude of the effect tended to be less for recognition. A third experiment using visual presentation studied the effect of articulatory suppression during the recognition test; again we found a clear word length effect. It is concluded that the word length effect can influence retention through both rehearsal and output factors, as proposed by the phonological loop hypothesis.     

Assessing structure building in college classrooms at scale

Structure building refers to the way in which people construct meaning from incoming information by creating a foundation of mental nodes, mapping incoming information to the foundational structure, and shifting to a new structure when necessary. Structure building ability has been shown to moderate learning both in laboratory-based and classroom-based research (e.g., use of outlines for effective note-taking and course final grades, respectively). However, measurement of structure building can be resource intensive. The purpose of the present study was to evaluate a shortened, scalable measure of structure building (developed by a textbook publisher) in a real-world context. The results are consistent with the hypothesis that this tool, embedded in the online ancillary materials accompanying a textbook, can be used to measure a variable that is relevant to students' learning in introductory psychology courses.     

Social Function and Autism Spectrum Disorder in Children and Adults with Neurofibromatosis Type 1: a Systematic Review and Meta-Analysis

In light of the proliferation of recent research into social function in neurofibromatosis type 1 (NF1), a systematic review and meta-analysis is required to synthesise data and place findings within the context of a theoretical framework. This paper reviews findings from research into social function and autism spectrum disorder (ASD) in children and adults with NF1 and integrates these findings with the Socio-Cognitive Integration Abilities Model (SOCIAL). It also critically appraises links between social outcomes, internal and external factors moderating social functioning, cognitive domains implicated in social functioning, and underlying neural pathology in NF1. A systematic literature search conducted in MedLine (Ovid), PsycINFO (Ovid), Embase (Ovid), and PubMed electronic databases yielded 35 papers that met inclusion criteria for the systematic review. Out of these papers, 22 papers provided sufficient data for meta-analysis. Findings from this review and meta-analysis provide evidence that children and adults with NF1 exhibit significantly higher prevalence and severity of social dysfunction and ASD symptomatology. To date, very few studies have examined social cognition in NF1 but results indicate the presence of both perceptual and higher-level impairments in this population. The results of this review also provide support for age, gender, and comorbid ADHD as moderating factors for social outcomes in NF1. Suggestions for future research are offered to further our understanding of the social phenotype in NF1 and to facilitate the development of targeted interventions.     

African American Adolescent-Caregiver Relationships in a Weight Loss Trial

Successful family-based weight loss interventions for African American adolescents are rare. Parent-adolescent interactions supporting adoption of healthier nutrition and physical activity practices are not well understood. African American caregivers' and adolescents' perspectives on how they worked together to achieve weight loss need further exploration. This study describes the relationships experienced by adolescents and caregivers during the 6-month, evidence-based FIT Families weight loss trial and explores differences between families whose adolescents were successful and unsuccessful with weight loss. Exit interviews conducted with 136 adolescents (age 12–16 years; BMI percentile ≥95) and their caregivers (primarily mothers) were taped and transcribed verbatim. Content and thematic analysis was conducted to explore differences between groups stratified by weight loss. Five adolescent-caregiver relationship patterns emerged which describe dyads working together, working alone, working against each other; caregiver support and caregiver working on self. When relationship patterns were compared between groups stratified by weight loss, three themes emerged: motivation, support, and persistence. Families that achieved the greatest weight loss referred more often to working together to reach weight loss goals, attributed their success to adolescent self-motivation, with engaged caregiver support which allowed families to persist in change efforts. Family relationships involving adolescent autonomy, engaged parental support, and persistence despite challenges, clustered differently among adolescents who were successful at weight loss compared to those who were not. Interventionists trained to reinforce effective adolescent-parent interactions will advance behavioral interventions for families who have typically benefited least in prior interventions.     

Constructions of social selves living with HIV/AIDS: A Jungian phenomenological study

This study explored sense of social well-being influences on self-identity and the stigma and discrimination among people living with HIV/AIDS (PLWHA). Informants were 15 PLWHA from a rural background in a South African community (female = 87%, age range = 26 to 64 years; and males = 13%, age range = 55 to 64 years). They completed semi-structured interviews on their lived experiences relating to a sense of social inclusion and belongingness. We thematically analysed the data, and interpreted the findings applying Jungian archetypes of the Self, Shadow, and Persona. Findings suggest PLWHA’s sense of a dominant Shadow to be a barrier to self-acceptance whereas a Persona (mask) was guided by a need to be socially acceptable. A positive sense of social well-being among PLWHA is important to their health and well-being.