The origins and evolution of links between word learning and conceptual organization: new evidence from 11‐month‐olds

How do infants map words to their meaning? How do they discover that different types of words (e.g. noun, adjective) refer to different aspects of the same objects (e.g. category, property)? We have proposed that (1) infants begin with a broad expectation that novel open‐class words (both nouns and adjectives) highlight commonalities (both category‐ and property‐based) among objects, and that (2) this initial expectation is subsequently fine‐tuned through linguistic experience. We examine the first part of this proposal, asking whether 11‐month‐old infants can construe the very same set of objects (e.g. four purple animals) either as members of an object category (e.g. animals) or as embodying a salient object property (e.g. four purple things), and whether naming (with count nouns vs. adjectives) differentially influences their construals. Results support the proposal. Infants treated novel nouns and adjectives identically, mapping both types of words to both category‐ and property‐based commonalities among objects.     

Gender differences in preadolescent children's online interactions: Symbolic modes of self-presentation and self-expression

Preadolescent children who did not know one another interacted in a multiuser domain (MUD), an online site designed to facilitate identity exploration and peer interaction. Each child participated in two separate sessions, one with a same-sex and one with an opposite-sex peer. Children created characters that reflected real-life properties of themselves, such as gender and interests in popular culture. Boys in same-sex pairs interacted with one another through action, rapid changes, and playful exchanges. Girls in same-sex pairs interacted primarily through written dialogue. In mixed pairs, boys wrote more and engaged in less playful exchanges, and girls wrote fewer and increased their actions. The results suggest that boys and girls have their own unique play styles with same-sex peers, but will moderate those patterns during late childhood to communicate with peers of the opposite sex.     

Prevalence of Smoking in Anxiety Disorders Uncomplicated by Comorbid Alcohol or Substance Abuse

This study examined the point prevalence of smoking in patients with anxiety disorders who do not have comorbid alcohol or substance abuse or dependence (ASAD). In a retrospective chart review, the smoking status of 581 patients with anxiety disorders was assessed. Patients, ages 18–65, were seeking treatment for anxiety disorders at an outpatient clinic that specialized in anxiety and related disorders. All participants were interviewed using the Anxiety Disorders Interview Schedule—IV, during which their smoking status was assessed. The prevalence of smoking across all anxiety disorders was 14.8%, which is much lower than found in the general population (23.3%; CDC, 2002) and even lower than previous estimates in individuals with comorbid anxiety and ASAD. Individuals with panic disorder and generalized anxiety disorder had the highest prevalence of smoking, although these rates were still considerably lower than those found in previous studies of smokers with anxiety disorders. Reasons for lower prevalence estimates are discussed.     

Written emotional disclosure buffers the effects of social constraints on distress among cancer patients.

The aims of the present study were to examine whether written emotional disclosure would reduce distress among cancer patients and whether it would buffer the effects of high levels of social constraint (negative social responses to patients' expressions of emotion regarding their cancer) on distress. Cancer patients (N=104) were randomly assigned to write about their emotions regarding their cancer 20 min a day for 3 days or to write about a nonemotional topic. They completed questionnaires at baseline and 6 months postintervention. Results showed that written disclosure buffered the effects of social constraints on stress at the 6-month follow-up and that avoidance partly mediated these effects. The present data reinforce the notion that interventions should be tailored to patients' needs.     

Preschoolers' Understanding of Simple and Complex Emotions: Links with Gender and Language

In this study we assessed individual differences among preschoolers' emotion understanding, verbal ability, and gender role behavior. Fifty-three children (M = 3 years, 5 months; 26 girls, 27 boys) participated in task that used puppets to assess their understanding of simple (happy, sad) and complex emotions (proud, embarrassed) and a standard vocabulary task. Parents completed a questionnaire on the frequency of their children's gender-typed behavior. Results indicated positive associations between children's total emotion understanding and both general verbal ability (particularly for boys) and parents' perceptions of stereotypic feminine behaviors. Gender analysis revealed that, independent of vocabulary ability, girls scored higher than boys on emotion labeling and understanding of complex emotions, especially the concept of pride. Results are discussed in relation to individual differences and effects of sociocultural context.     

Posttraumatic Stress Disorder and Associated Functional Impairments During Pregnancy: Some Consequences of Violence Against Women

Despite the high prevalence of violence in the lives of women of reproductive age, and the adverse consequences posed to pregnant women suffering from PTSD, few studies have examined violence-related trauma and PTSD among pregnant women. A structured research interview was administered to a convenience sample of 85 prenatal care women to collect information regarding their experiences of violence victimization, PTSD symptoms related to violence-related traumatic events, and whether these symptoms impaired various aspects of the women's daily functioning. Results indicated that 69% of the women experienced a violent traumatic event, with the majority of events occurring before the current pregnancy and being perpetrated by the women's intimate partners. The traumatized women evidenced high levels of PTSD symptoms during pregnancy, with 58% of the women meeting criteria for a PTSD diagnosis. Moreover, many of the women with PTSD symptoms reported that the symptoms adversely affected aspects of their daily functioning.     

Self-determination in relation to quality of life in homeless young adults: Direct and indirect effects through psychological distress and social support

The self-determination theory emphasizes the importance of satisfaction with autonomy, competence, and relatedness for a person’s psychological growth and well-being. This study examines associations between autonomy, competence, and relatedness with quality of life in homeless young adults; and whether possible associations are mediated by psychological distress and perceived social support. By means of face-to-face interviews, 255 homeless young adults who receive care from 10 Dutch shelter facilities for homeless young adults have been interviewed (M age = 20, 77% male, 51% Dutch Nationality) shortly after entering the facility. Autonomy, competence, and relatedness are all associated with quality of life, with competence as the highest correlate. Psychological distress mediates both competence and autonomy, and social support mediates competence as well as relatedness. These findings emphasize the importance of intervention programs for homeless young adults, focusing on the enhancement of self-determination, especially competence, to improve their quality of life.     

Judging the animacy of words: The influence of typicality and age of acquisition in a semantic decision task

The age at which members of a semantic category are learned (age of acquisition), the typicality they demonstrate within their corresponding category, and the semantic domain to which they belong (living, non-living) are known to influence the speed and accuracy of lexical/semantic processing. So far, only a few studies have looked at the origin of age of acquisition and its interdependence with typicality and semantic domain within the same experimental design. Twenty adult participants performed an animacy decision task in which nouns were classified according to their semantic domain as being living or non-living. Response times were influenced by the independent main effects of each parameter: typicality, age of acquisition, semantic domain, and frequency. However, there were no interactions. The results are discussed with respect to recent models concerning the origin of age of acquisition effects.