Multidimensional Personality Questionnaire profiles of veterans with traumatic combat exposure: externalizing and internalizing subtypes

This study used the Multidimensional Personality Questionnaire (MPQ; A. Tellegen, in press) to identify personality-based subtypes of posttraumatic response. Cluster analyses of MPQs completed by combat veterans revealed subgroups that differed on measures relating to the externalization versus internalization of distress. The MPQ profile of the externalizing cluster was defined by low Constraint and Harmavoidance coupled with high Alienation and Aggression. Individuals in this cluster also had histories of delinquency and high rates of substance-related disorder. In comparison, the MPQ profile of the internalizing cluster was characterized by lower Positive Emotionality, Alienation, and Aggression and higher Constraint, and individuals in this cluster showed high rates of depressive disorder. These findings suggest that dispositions toward externalizing versus internalizing psychopathology may account for heterogeneity in the expression of posttraumatic responses, including patterns of comorbidity.     

Transdiagnostic Theory and Application of Family-Based Treatment for Youth with Eating Disorders

This paper describes the transdiagnostic theory and application of family-based treatment (FBT) for children and adolescents with eating disorders. We review the fundamentals of FBT, a transdiagnostic theoretical model of FBT and the literature supporting its clinical application, adaptations across developmental stages and the diagnostic spectrum of eating disorders, and the strengths and challenges of this approach, including its suitability for youth. Finally, we report a case study of an adolescent female with eating disorder not otherwise specified (EDNOS) for whom FBT was effective. We conclude that FBT is a promising outpatient treatment for anorexia nervosa, bulimia nervosa, and their EDNOS variants. The transdiagnostic model of FBT posits that while the etiology of an eating disorder is unknown, the pathology affects the family and home environment in ways that inadvertently allow for symptom maintenance and progression. FBT directly targets and resolves family level variables, including secrecy, blame, internalization of illness, and extreme active or passive parental responses to the eating disorder. Future research will test these mechanisms, which are currently theoretical.     

Guided by Intention: Preschoolers' Imitation Reflects Inferences of Causation

Object use is a ubiquitous characteristic of the human species, and learning how objects function is a fundamental part of development. In this article the authors examine the role that intentionality plays in children's understanding of causal relationships during observational learning of object use. Children observed demonstrations in which causally irrelevant and causally relevant actions were performed to achieve a desired goal. The intentionality of these actions was manipulated using verbal markers. Irrelevant actions were performed either intentionally (“There!”) or accidentally (“Whoops! I didn't mean to do that!”). Three-, 4-, and 5-year-olds, but not 2-year-olds, were less likely to imitate causally irrelevant actions performed accidentally than when they were performed intentionally. This suggests that older children used intentionality to guide causal inference and perceived intentional actions as causally effective and accidental actions as causally ineffective. Findings are discussed from an evolutionary perspective in relation to the cultural transmission of tool-use knowledge.     

What do children want to know about animals and artifacts? Domain-specific requests for information

Children's questions may reveal a great deal about the characteristics of objects they consider to be conceptually important. Thirty-two preschool children were given opportunities to ask questions about unfamiliar artifacts and animals. The children asked ambiguous questions such as "What is it?" about artifacts and animals alike. However, they were more likely to ask about the functions of artifacts, but about category membership, food choices, and typical locations of animals. They never asked questions about either artifacts or animals that would be considered inappropriate by adults. The results indicate that children hold different expectations about the types of information important for categorizing living and artifact kinds. Young children conceive of artifacts in terms of functions, but conceive of animals in terms of biologically appropriate characteristics. Such results speak to debates about the role of function in children's biological reasoning and to accounts of children's artifact concepts.     

Perceived Social Support and Mental Health among First-Year College Students with Histories of Bullying Victimization

Although childhood bullying victimization is associated with adult depression and anxiety, the majority of previously bullied youth do not develop psychopathology. Identifying protective factors has implications for designing interventions that can support a successful adjustment to emerging adulthood. In this study, we investigate whether perceived social support protects against depression and anxiety among first-year college students who had previously experienced bullying. We collected data from 1474 first-year college students attending four large universities across the United States. Students completed a web-based survey in fall 2012 (Wave 1) and 436 (29.5 %) participated in a follow-up survey in spring 2013 (Wave 2). Participants reported on childhood bullying victimization, current depression and anxiety, and current social support (overall and from family, friends, and significant others). Results indicated that a history of childhood bullying victimization was positively associated with depression and anxiety in both fall and spring. Further, overall social support reported in fall moderated the association between childhood bullying victimization and fall and spring anxiety. Also, higher levels of perceived family support, in particular, buffered previously bullied students’ risk for spring anxiety. Results suggest that perceptions of familial social support during the initial adjustment to college may protect previously bullied first-year students from anxiety during their adjustment to college. Research and clinical implications, study limitations, and future directions are discussed.     

Choosing and using tools: Prior experience and task difficulty influence preschoolers’ tool-use strategies

Children's acquisition of tool use abilities is an important part of development but is not yet well understood. This study compares two modes of tool-use learning, observation and individual haptic experience. Two- and 3-year-olds had haptic experience with tools, observed tool use by others, had both haptic and observational experience, or no tool exposure. Their tool choice and use were evaluated across six problem-solving tasks that varied in degree of difficulty. Children learned about tools better by observation than by individual learning through manual exploration. Performance also varied by task difficulty, with more complex tasks proving more difficult. Findings are discussed from cognitive and evolutionary perspectives.