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731.
Results of past factor analytic studies of the Childhood Anxiety Sensitivity Index and Anxiety Sensitivity Index were used to formulate hypotheses about factor models of anxiety sensitivity. Using a nonclinical sample of 767 children and adolescents and confirmatory factor analysis, hypothesized models with 2, 3, and 4 lower order factors (facets) were tested. Goodness-of-fit criteria indicated that a model with 4 facets fits these data well. Support was found for factorial invariance of the 4 facets across age and gender, using nonclinical and clinical samples. Results support a hierarchical factor model in that there was a strong general factor, explaining 71% of the variance. Findings are discussed in the context of anxiety sensitivity theory and research with children and adolescents. 相似文献
732.
The influence of ethnic discrimination and ethnic identification on African American adolescents' school and socioemotional adjustment 总被引:22,自引:0,他引:22
Abstract Do experiences with racial discrimination at school predict changes in African American adolescents' academic and psy‐chological functioning? Does African American ethnic identity buffer these relations? This paper addresses these two questions using two waves of data from a longitudinal study of an economically diverse sample of African American adolescents living in and near a major East Coast metropolis. The data were collected at the beginning of the 7th grade and after the completion of the 8th grade. As expected, experiences of racial discrimination at school from one's teachers and peers predicts declines in grades, academic ability self‐concepts, academic task values, mental health (increases in depression and anger, decreases in self‐esteem and psychological resiliency), and increases in the proportion of one's friends who are not interested in school and who have problem behaviors. A strong, positive connection to one's ethnic group (our measure of ethnic identity) reduced the magnitude of the association of racial discrimination experiences with declines in academic self‐concepts, school achievement, and perception of friends' positive characteristics, as well as the association of the racial discrimination experiences with increases in problem behaviors. 相似文献
733.
Speakers are often disfluent, for example, saying theee uh candle instead of the candle. Production data show that disfluencies occur more often during references to things that are discourse-new, rather than given. An eyetracking experiment shows that this correlation between disfluency and discourse status affects speech comprehension. Subjects viewed scenes containing four objects, including two cohort competitors (e.g., camel, candle), and followed spoken instructions to move the objects. The first instruction established one cohort as discourse-given; the other was discourse-new. The second instruction was either fluent or disfluent, and referred to either the given or new cohort. Fluent instructions led to more initial fixations on the given cohort object (replicating Dahan et al., 2002). By contrast, disfluent instructions resulted in more fixations on the new cohort. This shows that discourse-new information can be accessible under some circumstances. More generally, it suggests that disfluency affects core language comprehension processes. 相似文献
734.
Antzoulatos EG Cleary LJ Eskin A Baxter DA Byrne JH 《Learning & memory (Cold Spring Harbor, N.Y.)》2003,10(5):309-313
Withdrawal reflexes of Aplysia are mediated in part by a monosynaptic circuit of sensory (SN) and motor (MN) neurons. A brief high-frequency burst of spikes in the SN produces excitatory postsynaptic potentials (EPSPs) that rapidly decrease in amplitude during the burst of activity. It is generally believed that this and other (i.e., low-frequency) forms of homosynaptic depression are entirely caused by presynaptic mechanisms (e.g., depletion of releasable transmitter). The present study examines the contribution that desensitization of postsynaptic glutamate receptors makes to homosynaptic depression. Bath application of cyclothiazide, an agent that reduces desensitization of non-NMDA glutamate receptors, reduced high-, but not low-frequency synaptic depression. Thus, a postsynaptic mechanism, desensitization of glutamate receptors, can also contribute to homosynaptic depression of sensorimotor synapses. 相似文献
735.
D'Augelli AR Grossman AH Salter NP Vasey JJ Starks MT Sinclair KO 《Suicide & life-threatening behavior》2005,35(6):646-660
In this study predictors of serious suicide attempts among lesbian, gay, and bisexual (LGB) youth were examined. Three groups were compared: youth who reported no attempts, youth who reported attempts unrelated to their sexual orientation, and youth whose attempts were considered related to their sexual orientation. About one third of respondents reported at least one suicide attempt; however, only half of the attempts were judged serious based on potential lethality. About half of all attempts were related to youths' sexual orientation. Factors that differentiated youth reporting suicide attempts and those not reporting attempts were greater childhood parental psychological abuse and more childhood gender-atypical behavior. Gay-related suicide attempts were associated with identifiability as LGB, especially by parents. Early openness about sexual orientation, being considered gender atypical in childhood by parents, and parental efforts to discourage gender atypical behavior were associated with gay-related suicide attempts, especially for males. Assessment of past parental psychological abuse, parental reactions to childhood gender atypical behavior, youths' openness about sexual orientation with family members, and lifetime gay-related verbal abuse can assist in the prediction of suicide attempts in this population. 相似文献
736.
Goldberg A 《The Psychoanalytic quarterly》2005,74(1):253-66; discussion 327-63
In contrast to the viewpoint that sees conflict as deriving from defense against instinctual drives and thus as an intrapsychic phenomenon, this essay presents conflict as sometimes being an external opposition between disparate configurations of the self. These parallel sectors with different goals and ambitions can be seen in a continuum from the dramatic narcissistic behavior disorders to more subtle instances of moral dilemmas. A clinical illustration is offered to demonstrate its occurrence and management in psychoanalysis. 相似文献
737.
This study examined the effects of multiple risk, promotive, and protective factors on three achievement-related measures (i.e., grade point average, number of absences, and math achievement test scores) for African American 7th-grade students (n = 837). There were 3 main findings. First, adolescents had lower grade point averages, more absences, and lower achievement test scores as their exposure to risk factors increased. Second, different promotive and protective factors emerged as significant contributors depending on the nature of the achievement-related outcome that was being assessed. Third, protective factors were identified whose effects were magnified in the presence of multiple risks. Results were discussed in light of the developmental tasks facing adolescents and the contexts in which youth exposed to multiple risks and their families live. 相似文献
738.
Abikoff HB Jensen PS Arnold LL Hoza B Hechtman L Pollack S Martin D Alvir J March JS Hinshaw S Vitiello B Newcorn J Greiner A Cantwell DP Conners CK Elliott G Greenhill LL Kraemer H Pelham WE Severe JB Swanson JM Wells K Wigal T 《Journal of abnormal child psychology》2002,30(4):349-359
Examined hypothesized gender and comorbidity differences in the observed classroom behavior of children with attention deficit hyperactivity disorder (ADHD). The behavior of 403 boys and 99 girls with ADHD, ages 7–10, was compared (a) to observed, sex-specific classroom behavior norms, (b) by sex, and (c) by comorbid subgroups. Boys and girls with ADHD deviated significantly from classroom norms on 15/16 and 13/16 categories, respectively. Compared to comparison girls, girls with ADHD had relatively high rates of verbal aggression to children. Boys with ADHD engaged in more rule-breaking and externalizing behaviors than did girls with ADHD, but the sexes did not differ on more neutral, unobtrusive behaviors. The sex differences are consistent with notions of why girls with ADHD are identified and referred later than boys. Contrary to hypothesis, the presence of comorbid anxiety disorder (ANX) was not associated with behavioral suppression; yet, as hypothesized, children with a comorbid disruptive behavior disorder (DBD) had higher rates of rule-breaking, and impulsive and aggressive behavior, than did children with ADHD alone and those with ADHD+ANX. Elevated rates of ADHD behaviors were also observed in children with comorbid DBD, indicating that these behaviors are truly present and suggesting that reports of higher ADHD ratings in this subgroup are not simply a consequence of negative halo effects and rater biases. 相似文献
739.
Arnold MM Lindsay DS 《Journal of experimental psychology. Learning, memory, and cognition》2002,28(3):521-529
We developed a laboratory analogue of the "forgot-it-all-along" effect that J. W. Schooler, M. Bendiksen, and Z. Ambadar (1997) proposed for cases of "recovered memories" in which individuals had forgotten episodes of talking about the abuse when they were supposedly amnestic for it. In Experiment 1, participants studied homographs with disambiguating context words; in Test 1 they received studied- or other-context words as cues; and in Test 2 they received studied-context cues and judged whether they had recalled each item during Test 1. In Experiment 2, retrieval cues were manipulated on both tests. In Experiment 3, both the studied- and other-context cues corresponded to the same meaning of each homograph. In Experiment 4, Test 1 was free recall, and studied- versus other-context cues were presented in Test 2. Participants more often forgot that they had previously recalled an item if they were cued to think of it differently on the two tests. 相似文献
740.