Interpretation Bias Training in Depressed Adolescents: Near- and Far-Transfer Effects

Depressed adolescents are characterized by negative interpretation biases. Although investigators have used cognitive bias modification for interpretation (CBM-I) to experimentally manipulate interpretation biases in depressed adults, the near- and far-transfer effects are not well understood in adolescents diagnosed with Major Depressive Disorder (MDD). In this study, we extend previous research by investigating the near- and far-transfer effects of 6 sessions of Positive versus Neutral CBM-I on independent measures of interpretation bias (near-transfer effects) and on attention biases and clinical symptoms (far-transfer effects) in a sample of adolescents with MDD (n = 46). At post-training, adolescents who received Positive CBM-I interpreted ambiguous scenarios more positively than did participants who received Neutral CBM-I, providing evidence of training effectiveness. There was no evidence, however, of near- or far-transfer effects. These findings raise concerns about the malleability of interpretation biases in adolescent depression and suggest that further work is needed to establish the clinical utility of CBM-I for adolescents with MDD.     

Deformation structure after fracture-toughness test of Mg–Al–Zn alloys processed by equal-channel-angular extrusion

Fracture toughness and deformation structures have been investigated using an AZ31 magnesium alloy processed by equal-channel-angular extrusion (ECAE). The ECAE-processed alloy (as-ECAE) was annealed at 573?K for 24?h (annealed-ECAE). The average grain sizes of as-ECAE and annealed-ECAE alloys were 4.0 and 16.3?µm, respectively. The plane-strain fracture toughness K _IC, obtained by stretched-zone analysis in as-ECAE and annealed-ECAE, were estimated to be 27.3 and 23.5?MPa/m^1/2, respectively. From optical microstructural observations in samples after the fracture-toughness tests, deformation twins were observed in annealed-ECAE. No deformation twins were observed in as-ECAE. In addition, dislocations on basal planes, as well as on non-basal planes, were activated in as-ECAE. It is concluded that the enhancement of the fracture toughness in the fine-grain structure was related to a reduction of deformation twins and dislocation movement in non-basal planes.     

Dislocation nucleation and vacancy formation during high-speed deformation of fcc metals

Recently, a dislocation-free deformation mechanism was proposed by Kiritani et al. on the basis of a series of experiments where thin foils of fcc metals were deformed at very high strain rates. In the experimental study, they observed a large density of stacking fault tetrahedra but very low dislocation densities in the foils after deformation. This was interpreted as evidence for a new dislocation-free deformation mechanism, resulting in a very high vacancy production rate. In this paper we investigate this proposition using large-scale computer simulations of bulk and thin films of copper. To favour such a dislocation-free deformation mechanism, we have made dislocation nucleation very difficult by not introducing any potential dislocation sources in the initial configuration. Nevertheless, we observe the nucleation of dislocation loops, and the deformation is carried by dislocations. The dislocations are nucleated as single Shockley partials. The large stresses required before dislocations are nucleated result in a very high dislocation density, and therefore in many inelastic interactions between the dislocations. These interactions create vacancies and a very large vacancy concentration is quickly reached.     

Dynamic properties of edge dislocations decorated by interstitial loops in α-iron and copper

Clusters of self-interstitial atoms (SIAs) in the form of parallel crowdions are created directly in high-energy displacement cascades produced in metals by neutron irradiation. They are equivalent to small perfect dislocation loops and, in isolation in pure metals, undergo fast thermally-activated glide in the direction of their Burgers vector. Their strain field and ability to glide allows long-range interaction with other extended defects. Indeed, dislocations decorated by dislocation loops are commonly observed after neutron irradiation. Dislocations gliding under applied stress also encounter these mobile defects. These effects influence mechanical properties and require further investigation. This paper presents results from an atomic-scale study of copper and α-iron at either 0?K or 300?K. Loop drag and breakaway effects are investigated for an edge dislocation under applied stress interacting with a row of SIA loops below its glide plane. The maximum speed at which a loop is dragged is lower in copper than iron, and the applied stress at which this occurs is also lower. These differences in the dynamics of cluster-dislocation interaction are determined by the atomic structure of the defects and cannot be investigated by continuum treatment.     

The Imagination Library Program: Increasing Parental Reading Through Book Distribution

Research has established a connection between print exposure and reading skills. The authors examined the impact of book access on print exposure via a monthly book distribution program. At 10 months of implementation, 170 families enrolled in the Imagination Library Program in Syracuse, New York responded to a survey. Results indicated that length of enrollment was associated with frequency of child-directed reading and story discussion, even when controlling for child age, gender, income, parental education, race, parental nation of birth, and primary language spoken at home. Consequently, the authors conceptualize such programs as catalysts for developing early literacy skills by increasing child-directed reading.     

Camera-Based Microswitch Technology to Monitor Mouth,Eyebrow, and Eyelid Responses of Children with Profound Multiple Disabilities

A camera-based microswitch technology was recently used to successfully monitor small eyelid and mouth responses of two adults with profound multiple disabilities (Lancioni et al., Res Dev Disab 31:1509–1514, 2010a). This technology, in contrast with the traditional optic microswitches used for those responses, did not require support frames on the participants’ face but only small color marks. The present study was aimed at extending the research evidence available on the aforementioned technology with the involvement of new participants and responses. The participants were three children with profound multiple disabilities. The responses selected for them consisted of mouth closing, eyebrow lifting, and repeated eyelid closures. The results showed that the new technology could be satisfactorily applied with all three children, across the three different responses. All children had large increases in responding during the intervention periods (i.e., when their responses were followed by preferred stimulation). The findings are discussed in relation to the possible impact of the new technology on programs for persons with multiple disabilities and minimal motor behavior.     

Strength in the Face of Adversity: Resilience Strategies of Transgender Individuals

This phenomenological inquiry explored the lived experiences of resilience of 21 transgender individuals. Through individual semistructured interviews (3 interviews each with 5 participants) and 1 focus group interview (16 participants), the authors identified 5 common resiliency themes (evolving a self‐generated definition of self, embracing self‐worth, awareness of oppression, connection with a supportive community, and cultivating hope for the future) and 2 variant themes (social activism and being a positive role model for others). Future practice and research directions are discussed.     

The Happy Personality in India: The Role of Emotional Intelligence

This study examined the relations among the big five personality traits, emotional intelligence, and happiness. Participants included 205 (51 females, 154 males) university students in India. A series of mediational path analyses tested whether emotional intelligence mediated the relationship between personality traits and feelings of happiness. The analyses revealed that emotional intelligence mediates associations between several personality factors and happiness for females but not for males. Specifically, for females, emotional intelligence mediated the associations from conscientiousness and emotional instability to happiness, while males evidenced only direct associations. The findings suggest different associations than those of past studies regarding personality and happiness in Western samples. According to these results from an Indian sample, emotional intelligence may serve as an intermediary from personality to happiness for females, but has independent contributions to happiness for males.     

Training in Mindful Caregiving Transfers to Parent–Child Interactions

In an earlier study, we provided mindfulness training to three caregivers of individuals with profound multiple disabilities. We measured levels of happiness displayed by the individuals during the 8 weeks of mindfulness training of the caregivers, as well as during the 16 weeks following the termination of training. We found that happiness increased markedly when an individual interacted with a caregiver who had received training in mindfulness as opposed to a control caregiver who did not receive such training. In this study, we investigated whether the increased mindfulness of the three caregivers would transfer to interactions with their own children. The children’s non-compliance with their mother’s requests was used as an indirect index of the effects of training their mothers received in mindfulness. Although the ages of the children and their baseline levels of non-compliance were variable, the data showed a decrease in non-compliance during mindfulness training of the caregivers and further decreases following the completion of training. Our data provide preliminary evidence of transfer of mindfulness training from caregiving to parent–child interactions. We speculate as to why this may occur in mindfulness training.