CAMP: A community‐based approach to promoting safe sex behaviour in adolescence

The primary goal of this study was to describe the development and assessment of the Community Awareness Motivation Partnership (CAMP) Teen Theatre intervention. Based on the behavioural ecological model, CAMP addressed the role of contraceptive use in safe sex behaviour through a brief informative, entertaining, and culturally responsive dramatization programme. Adolescents (N = 1613) between the ages of 11 and 18 (M = 13.31, SD = 0.76) received the intervention, and 961 participants completed both pre‐ and post‐tests. The majority of participants were Latino (78.5%, n = 1039), many of whom were first generation immigrants. Results indicated that the intervention increased participants' reported intentions to delay sex and use contraceptives. The intervention produced short‐term changes in safe‐sex behavioural intentions and knowledge. Suggestions for producing long‐term changes were discussed. Copyright © 2003 John Wiley & Sons, Ltd.     

A Comparison of Family Environment Characteristics Among White (Non‐Hispanic), Hispanic,and African Caribbean Groups

To investigate differences in the family environments of different cultural groups, the Family Environment Scale and a clinical interview were administered to 153 college students from White (non‐Hispanic), Hispanic, and African Caribbean backgrounds. A multivariate analysis of covariance and post hoc comparisons revealed significant differences between the groups on the Expressiveness, Independence, and Moral‐Religious Emphasis subscales. Para investigar las distinciones en los ambientes familiares entre grupos culturales diferentes, la Escala del Ambiente Familiar (FES) y una entrevista clínica fueron administradas a 153 estudiantes colegiales Blancos (no‐Hispanos), Hispanos, y Africano‐Caribeños. Un análisis de la covariancia multivariado y comparaciones post hoes revelarón diferencias significativas entre los grupos en Expresividad, Independencia, y Enfasis Moral‐Religioso.     

Thriving and Ethnic Discrimination: A Mixed‐Methods Study

Using mixed methodology, the authors examined facilitators to psychological thriving—or positive changes after adversity—in the context of ethnic discrimination among Latina/o adults. Several themes emerged from qualitative interviews (n = 10), including proving others wrong, ethnic identity, and community involvement. Quantitative analyses (n = 97) indicated that U.S. identity moderated the relationship between ethnic microaggressions and thriving such that high levels of U.S. identity were associated with lower thriving. Implications and future directions are discussed. Usando una metodología mixta, los autores examinaron los facilitadores de la prosperidad psicológica (o cambios positivos tras la adversidad) en el contexto de la discriminación étnica en personas latinas adultas. Varios temas surgieron de las entrevistas cualitativas (n = 10), entre los que se incluyen demostrar que otros estaban equivocados, la identidad étnica y la implicación de la comunidad. Los análisis cuantitativos (n = 97) indicaron que la identidad estadounidense moderó la relación entre las microagresiones étnicas y la prosperidad de tal modo que unos altos niveles de identidad estadounidense se asociaron con una baja prosperidad. Se discuten las implicaciones y direcciones futuras.     

Physical home environment is associated with prefrontal cortical thickness in adolescents

Biologically embedded experiences alter developmental trajectories in ways that can influence health, learning, and/or behavior. These systematic differences in experiences may contribute to different biological outcomes as individuals grow and develop, including at the neural level. Previous studies of biologically embedded experiences on neurodevelopment have focused on large‐scale institutional or economic factors (e.g. socioeconomic status [SES]) and psychosocial factors (e.g. caregiving behavior). Less attention has focused on how the quality of the immediate home settings, such as the physical home environment (PHYS), influences neurodevelopment. Moreover, no study has investigated these effects in adolescents, who undergo significant physical maturation and neurodevelopment that may influence how they respond to their physical environments. The goal of the current study was to examine whether PHYS quality is biologically embedded in the developing adolescent brain as evidenced by cognitive achievement and cortical development in 56 (48% female) healthy adolescents (14–18 years (M = 16.83 years, SD = 1.17). Using in‐home assessments of the physical home environment, anatomical brain scans, and indices of academic achievement, we found that adolescents who have more physical problems in the home (e.g. structural hazards, crowding, excessive noise, poorly lit) have thinner prefrontal cortices, which was associated with lower levels of reading achievement, independent of SES and psychosocial factors. By conducting home visits to assess physical characteristics of adolescents’ home, we highlight a typically overlooked aspect of the home environment that has relevance for adolescents’ cognitive and brain development.     

The Polish Spence Children’s Anxiety Scale: Preliminary Evidence on Validity and Cross-Cultural Comparison

Anxiety disorders are one of the most widespread psychological diseases in adolescence, which may lead to impairment in several areas of life and has been demonstrated a risk factor of other psychiatric disorders. One of the most widely used self-report measures to assess multiple symptoms of anxiety in youth is the Spence Children’s Anxiety Scale (SCAS). Literature suggests that anxiety symptoms vary across cultures to some extent. It has been found that individuals from collectivistic culture report higher levels of anxiety disorders than those from individualistic culture. Poland is a country whose culture was traditionally collectivistic; but now Poland is undergoing social and economic system transformation, which is taking it closer to individualistic culture. However, SCAS has never been validated in Polish samples, and thus the current study aimed (1) to assess the psychometric properties (structural validity and reliability) of SCAS in a sample of 303 Polish adolescents, (2) to examine gender differences, (3) to test the divergent validity of SCAS by relating it to the Rosenberg Self-Esteem Scale, and (4) to compare the mean levels with Chinese (collectivistic) and Italian (individualistic) samples. The results confirmed that the Polish version of SCAS showed good reliability and validity. Polish girls showed higher physical injury and generalized anxiety/overanxious symptoms than boys. Furthermore, Polish adolescents reported higher levels of anxiety than Italian youth but lower levels of anxiety than their Chinese counterparts. Implications for professionals and researchers are discussed.     

Eye blink rate predicts reward decisions in adolescents

The ventral striatum displays hyper‐responsiveness to reward in adolescents relative to other age groups, and animal research on the developmental trajectory of the dopaminergic system suggests that dopamine may underlie adolescent sensitivity to reward. However, practical limitations prevent the direct measurement of dopamine in healthy adolescents. Eye blink rate (EBR) shows promise as a proxy measure of striatal dopamine D2 receptor function. We investigated developmental differences in the relationship between EBR and reward‐seeking behavior on a risky decision‐making task. Increasing EBR was associated with greater reward maximization on the task for adolescent but not adult participants. Furthermore, adolescents demonstrated greater sensitivity to reward value than adults, as evinced by shifts in decision patterns based on increasing potential reward. These findings suggest that previously observed adolescent behavioral and neural hypersensitivity to reward may in fact be due to greater dopamine receptor activity, as represented by the relationship of blink rate and reward‐seeking behavior. They also demonstrate the feasibility and utility of using EBR as a proxy for dopamine in healthy youth in whom direct measurements of dopamine are prohibitively invasive.     

The influence of lying positions and postural control on hand-mouth and hand-hand behaviors in 0-4-month-old infants

The purpose of this study was to verify how and when body position and postural control affect hand-mouth and hand-hand behaviors in infants during their first 4 months of life. Forty healthy infants were positioned in supine, prone and side-lying positions so that frequency and duration of the behaviors were quantified. Postural control when in supine and prone was also analyzed. The prone position elicited hand-mouth behavior in 0-2-month-old infants. The side-lying position elicited hand-mouth behavior in 3-4-month-old infants and hand-hand behavior in 2-4-month-olds. The increased postural control promoted the emergence of hand-hand behavior when in supine, and decreased hand-mouth behavior when in prone. The results show that self-exploratory behaviors may be affected not only by extrinsic constraints, represented by different body positions, but also by intrinsic constraints, represented by characteristic action possibilities and postural control of each age group.     

Memory abilities in Williams syndrome: Dissociation or developmental delay hypothesis?

Williams syndrome (WS) is a neurodevelopmental genetic disorder often described as being characterized by a dissociative cognitive architecture, in which profound impairments of visuo-spatial cognition contrast with relative preservation of linguistic, face recognition and auditory short-memory abilities. This asymmetric and dissociative cognition has been also proposed to characterize WS memory ability, with sparing of auditory short-term memory and impairment of spatial and long-term memory abilities. In this study, we explored the possibility of a double memory dissociation in WS (short- versus long-term memory; verbal versus visual memory). Thus, verbal memory abilities were assessed using California Verbal Learning Test and Digit Span and Rey-Osterrieth Complex Figure and Corsi Blocks was used to assess visual-spatial memory abilities. Overall, WS subjects were found to present a generalized significant impairment in verbal and visuo-spatial components either in short- or long-term memory. In sum, data from this study brings support for a developmental delay hypothesis, rather than a double dissociation within memory systems in WS.     

The Role of Lay Health Advisors in Cardiovascular Risk Reduction: A Review

Interventions are needed to reduce the negative impact of cardiovascular disease. The combination of health risks for disease, disability, and mortality, particularly among underserved populations, might be best addressed with programs designed to enhance awareness and development of resources within a context of community support. The objectives of this review were to: (1) provide a comprehensive review and evaluation of the roles, evaluation, and effectiveness of LHA in community-based programs with an emphasis on cardiovascular risk reduction; and (2) provide recommendations for future research involving LHA in such programs. Computer and manual searches were conducted of articles in the English-language literature from 1980 to 2007. Twenty articles were evaluated, which emphasized the role of the LHA in cardiovascular risk reduction. A review of research literature provides a starting point for determining salient approaches for intervention and evaluation, issues related to program implementation and sustainability, and strengths and limitations of existing approaches.     

Risk‐taking and the adolescent brain: who is at risk?

Relative to other ages, adolescence is described as a period of increased impulsive and risk-taking behavior that can lead to fatal outcomes (suicide, substance abuse, HIV, accidents, etc.). This study was designed to examine neural correlates of risk-taking behavior in adolescents, relative to children and adults, in order to predict who may be at greatest risk. Activity in reward-related neural circuitry in anticipation of a large monetary reward was measured with functional magnetic resonance imaging, and anonymous self-report ratings of risky behavior, anticipation of risk and impulsivity were acquired in individuals between the ages of 7 and 29 years. There was a positive association between accumbens activity and the likelihood of engaging in risky behavior across development. This activity also varied as a function of individuals' ratings of anticipated positive or negative consequences of such behavior. Impulsivity ratings were not associated with accumbens activity, but rather with age. These findings suggest that during adolescence, some individuals may be especially prone to engage in risky behaviors due to developmental changes in concert with variability in a given individual's predisposition to engage in risky behavior, rather than to simple changes in impulsivity.