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161.
Recent studies show that perceptual boundaries between phonetic categories are changeable with training (Norris, McQueen, & Cutler, 2003). For example, Kraljic and Samuel (2005) exposed listeners in a lexical decision task to ambiguous /s-integral/ sounds in either s-word contexts (e.g., legacy) or integral-word contexts (e.g., parachute). In a subsequent /s/-/integral/ categorization test, listeners in the /s/ condition categorized more tokens as /s/ than did those in the /integral/ condition. The effect--termed perceptual learning in speech--is assumed to reflect a change in phonetic category representation. However, the result could be due to a decision bias resulting from the training task. In Experiment 1, we replicated the basic Kraljic and Samuel (2005) experiment and added an AXB discrimination test. In Experiment 2, we used a task that is less likely to induce a decision bias. Results of both experiments and signal detection analyses point to a true change in phonetic representation. 相似文献
162.
Borderline personality disorder (BPD) is characterized by severe disruption of interpersonal relationships, yet very little research has examined the relationship between maternal BPD and offspring psychosocial functioning. The present study examined 815 mothers and their 15-year-old children from a community-based sample to determine (1) if there is an association between mothers' BPD symptoms and the interpersonal functioning, attachment cognitions, and depressive symptoms of their offspring, and (2) if the association of maternal BPD and youth outcomes is independent of maternal and youth depression. Measures of youth psychosocial functioning included self, mother, interviewer rated, and teacher reports. Results indicated that there was a significant association between maternal BPD symptoms and youth outcomes, and that this association remained even after controlling for maternal lifetime history of major depression, maternal history of dysthymic disorder, and youth depressive symptoms. This study provides some of the first empirical evidence for a link between mother's BPD symptoms and youth psychosocial outcomes. 相似文献
163.
Espejo EP Hammen CL Connolly NP Brennan PA Najman JM Bor W 《Journal of abnormal child psychology》2007,35(2):287-299
The goal of the present study was to determine whether exposure to adversity in childhood contributes to a differential threshold at which stressful life events provoke depressive reactions in adolescence. In addition, to address empirical and conceptual questions about stress effects, the moderating effect of anxiety disorder history was also explored. This examination was conducted in a sample of 816 children of depressed and nondepressed mothers, who were followed from birth to age 15. Information on adversities experienced in childhood was collected both from mothers during the first five years of their youth's life and from the youths themselves at age 15, and included information on the mother's relationship with her partner, maternal psychopathology, as well as youth-reported abuse. Results indicated that youths with both greater exposure to adversity in childhood and a history of an anxiety disorder displayed increased depressive severity following low levels of episodic stress compared to youths with only one or neither of these risk factors. The results are speculated to reflect the possibility that early anxiety disorders associated with exposure to adversity in childhood may be a marker of dysregulated stress responses, and may help to account for the comorbidity of depression and anxiety in some individuals. 相似文献
164.
Previous research indicates that patients with obsessive-compulsive disorder (OCD) show impaired ability to forget negative material (Behav Res Ther 34 (1996) 633). The present study was intended to replicate and extend these findings by separating emotional valence from personal relevance, using idiographic stimulus selection to control for heterogeneity of OCD concerns, and the addition of an anxious control group. We used a directed forgetting paradigm, in which participants were instructed to either remember or forget a series of words. No differences in impairment were found among the groups during a free recall test, in which they were asked to recall both "remember" and "forget" words. However, during a recognition test, OCD patients showed greater impaired forgetting for OCD-relevant words than did nonanxious and anxious controls. Valence of words did not emerge as a contributing factor to impaired forgetting. 相似文献
165.
Normative personality change over 40 years was shown in 2 longitudinal cohorts with hierarchical linear modeling of California Psychological Inventory data obtained at multiple times between ages 21-75. Although themes of change and the paucity of differences attributable to gender and cohort largely supported findings of multiethnic cross-sectional samples, the authors also found much quadratic change and much individual variability. The form of quadratic change supported predictions about the influence of period of life and social climate as factors in change over the adult years: Scores on Dominance and Independence peaked in the middle age of both cohorts, and scores on Responsibility were lowest during peak years of the culture of individualism. The idea that personality change is most pronounced before age 30 and then reaches a plateau received no support. 相似文献
166.
In this article, we test the utility of Agnew's general strain theory to explain suicidal behaviors among American Indian youth. Data from 721 American Indian adolescents from the Midwest and Canada were collected in partnership with participating reservations/reserves and a research team. We investigate the effects of strains/stressors on suicide, including tests of mediating effects of negative emotions on relationships between stressors and suicidality. We found that several strains/stressors were related to suicidality, including coercive parenting, caretaker rejection, negative school attitudes, and perceived discrimination. We also found that depressive symptoms and anger mediated the effects of several key predictors of suicidality. We discuss the theoretical and policy implications of our work for the general strain theory and for American Indian suicide in general. 相似文献
167.
The purpose of this research project was to examine the effectiveness of supervised literacy tutoring delivered by 25 secondary teacher candidates to middle and high school students via webcam technology and in person. The results stem from two semester-long studies of technology-delivered tutoring from a university to middle and high school settings. Findings support the effectiveness of delivering literacy tutoring components through 18 one-hour tutoring sessions using webcam technology with secondary teacher candidates as instructors. In addition, the data revealed that there was no significant difference in the literacy growth among those students who received tutoring in person or via webcam technology. 相似文献
168.
Numerous anecdotal accounts exist of an incubation period promoting creativity and problem solving. This article examines whether incubation is an empirically verifiable phenomenon and the possible role therein of nonconscious processing. An Idea Generation Test was employed to examine (a) whether an incubation effect occurred and (b) the impact of different types of break on this effect. In the Idea Generation Test, two groups of participants were given a distracting break, during which they completed either a similar or an unrelated task, and a third group worked continuously (N = 90). The Idea Generation Test was validated against established measures of cognitive ability and personality, and was found to exhibit variance distinct from those marker tests. Most important, results demonstrated that having a break during which one works on a completely different task is more beneficial for idea production than working on a similar task or generating ideas continuously. The advantage afforded by a break cannot be accounted for in terms of relief from functional fixedness or general fatigue, and, although it may be explicable by relief from task-specific fatigue, explanations of an incubation effect in terms of nonconscious processing should be (re)considered. 相似文献
169.
Cathy Owens Swift Constance Campbell 《Journal of Personal Selling & Sales Management》2013,33(4):45-56
This study examines the type of relationship that exists between the sales manager and subordinate (vertical exchange status), and its impact on the sales manager's attributions about the subordinate performance, as well as subsequent responses to the subordinate. Results indicate that cadres may receive preferential consideration in explaining their performance, which then impacts the sales manager's response to the salesperson. The findings imply that sales managers should be careful in assigning attributions for performance by both cadre and hired hand salespersons. 相似文献
170.
Molly Tartter Constance Hammen Patricia Brennan 《Journal of abnormal child psychology》2014,42(2):185-194
Maternal depression has been linked to increased risk of substance use disorders (SUDs) in offspring. Cross-sectional studies have identified relationships among maternal depression, externalizing disorders and SUDs, but no longitudinal examination of causality has been undertaken. In order to address this gap in the literature, depression and externalizing disorders at or prior to age 15 were tested as mediators of the relationship between maternal depression and SUDs diagnosed between ages 16 and 20 in a sample of 702 Australian youth (363 women) using path models. Mothers’ and fathers’ substance diagnoses and earlier onset of substance abuse in youth were controlled for in all analyses. Consistent with previous work, maternal depression predicted SUDs between ages 16 and 20. An indirect effect of maternal depression through youth externalizing disorders diagnosed by age 16 was detected for alcohol and cannabis use disorders, but not drug disorders. Early adolescent depression was not a mediator of the relationship between maternal depression and any of the substance outcomes measured. To our knowledge, this study is the first to examine depression and externalizing disorders in early adolescence as mediators of the effect of maternal depression on psychopathology in later adolescence. Further work is needed to understand how family environment and genetic factors may explain the mediation by externalizing disorders. 相似文献