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941.
942.
Bhatt RS Hayden A Reed A Bertin E Joseph J 《Journal of experimental child psychology》2006,94(2):91-113
Object parts are signaled by concave discontinuities in shape contours. In seven experiments, we examined whether 5- and 6 1/2-month-olds are sensitive to concavities as special aspects of contours. Infants of both ages detected discrepant concave elements amid convex distractors but failed to discriminate convex elements among concave distractors. This discrimination asymmetry is analogous to the finding that concave targets among convex distractors pop out for adults, whereas convex targets among concave distractors do not. Thus, during infancy, as during adulthood, concavities appear to be salient regions of shape contours. The current study also found that infants' detection of concavity is impaired if the contours that define concavity and convexity are not part of closed shapes. Thus, for infants, as for adults, concavities and convexities are defined more readily in the contours of closed shapes. Taken together, the results suggest that some basic aspects of part perception from shape contours are available by at least 5 months of age. 相似文献
943.
In his cognitive-energetic model of information processing Sergeant [Sergeant, J. (2000). The cognitive-energetic model: An empirical approach to ADHD. Neuroscience and Biobehavioral Reviews, 24, 7-12] links executive function (EF) to motor behaviour. This link has been supported by evidence from a number of sources including studies of attention deficit hyperactivity disorder (ADHD) and developmental coordination disorder (DCD). Little is known developmentally about this association. Given the rapid change in both motor proficiency and EF that takes place in the pre-school years, this appears an important time to look for the emergence of the link between these factors. In this study we tested 5- and 6-year-old children on motor tasks from the movement assessment battery for children and on measures of response inhibition (Stroop and stop-signal task) and examined the relationship between scores on these measures. Additionally, in order to relate this behaviour to everyday function, the Rowe behavioural rating inventory (RBRI), a teachers' behavioural rating of externalising behaviour, was also gathered and this related to EF and motor performance. It was found that motor performance correlated significantly with RBRI scores (better motor performance with lower externalising behaviour) and with Stroop performance. The relationship between motor performance and stop-signal task performance was in the expected direction but failed to reach significance and there was no clear association between performance on the stop-signal task and either Stroop or RBRI scores. The results are discussed in relation to different aspects of response inhibition (inhibition of a pre-potent response, interference control) and how these might relate to motor control. 相似文献
944.
Mendle J Turkheimer E D'Onofrio BM Lynch SK Emery RE Slutske WS Martin NG 《Developmental psychology》2006,42(3):533-542
Girls who grow up in households with an unrelated adult male reach menarche earlier than peers, a finding hypothesized to be an evolutionary strategy for families under stress. The authors tested the alternative hypothesis that nonrandom selection into stepfathering due to shared environmental and/or genetic predispositions creates a spurious relation between stepfathering and early menarche. Using the unique controls for genetic and shared environmental experiences offered by the children-of-twins design, the authors found that cousins discordant for stepfathering did not differ in age of menarche. Moreover, controlling for mother's age of menarche eliminated differences in menarcheal age associated with stepfathering in unrelated girls. These findings strongly suggest selection, and not causation, accounts for the relationship between stepfathering and early menarche. 相似文献
945.
946.
In an 8-wave, 2-cohort longitudinal study, children and adolescents were followed from the fall of 5th grade to the spring of 8th grade. Participants (N = 1,269), their parents, and peers completed reports of depressive symptoms at 6-month intervals. The use of a 2-group latent variable autoregressive model to examine the stability of depressive symptomatology revealed several trends. First, the 6-month stability of depressive symptoms was high for boys and girls. Second, the stability of depressive symptomatology was lower between the spring of 6th grade and the fall of 7th grade than during any other point in the study. Finally, the stability of depressive symptoms did not differ with respect to gender. 相似文献
947.
Srivastava S McGonigal KM Richards JM Butler EA Gross JJ 《Journal of personality and social psychology》2006,91(1):143-153
Does expecting positive outcomes--especially in important life domains such as relationships--make these positive outcomes more likely? In a longitudinal study of dating couples, the authors tested whether optimists (who have a cognitive disposition to expect positive outcomes) and their romantic partners are more satisfied in their relationships, and if so, whether this is due to optimists perceiving greater support from their partners. In cross-sectional analyses, both optimists and their partners indicated greater relationship satisfaction, an effect that was mediated by optimists' greater perceived support. When the couples engaged in a conflict conversation, optimists and their partners saw each other as engaging more constructively during the conflict, which in turn led both partners to feel that the conflict was better resolved 1 week later. In a 1-year follow-up, men's optimism predicted relationship status. Effects of optimism were mediated by the optimists' perceived support, which appears to promote a variety of beneficial processes in romantic relationships. 相似文献
948.
Depressive Symptomatology among HIV-Positive Women in the Era of HAART: A Stress and Coping Model 总被引:1,自引:0,他引:1
Remien RH Exner T Kertzner RM Ehrhardt AA Rotheram-Borus MJ Johnson MO Weinhardt LS Kittel LE Goldstein RB Pinto RM Morin SF Chesney MA Lightfoot M Gore-Felton C Dodge B Kelly JA;NIMH Healthy Living Project Trial Group 《American journal of community psychology》2006,38(3-4):275-285
Objective: An enhanced stress and coping model was used to explain depression among HIV-positive women in healthcare and community settings where highly active anti-retroviral treatment (HAART) was commonplace. Method: HIV-infected women in four cities (N=978) were assessed, cross-sectionally, for mental and physical health, stress, social support, and other background factors. Results: Self-reported level of depressive symptomatology was high. Number of physical symptoms, illness intrusiveness, and perceived stress were positively associated with depressed mood, while coping self-efficacy and social support were negatively associated. Stress mediated the effect of health status on depression and coping self-efficacy mediated the effect of psychosocial resources on depression. Our enhanced stress and coping model accounted for 52% of variance in depressive symtpomatology. Conclusions: Interventions focused on improving coping self-efficacy, bolstering social supports, and decreasing stress in the lives of HIV-positive women may help to reduce the negative effects of HIV disease on mood. 相似文献
949.
Moyer, Burkhardt, and Gordon found in 2002 that some individuals could fake PTSD on the MMPI-2. In light of these results, a follow-up study was conducted to assess whether attributes such as empathy, intelligence, subjectivity, or insightfulness influenced ability to fake a PTSD profile on the MMPI-2. 35 subjects from the previous study were divided into two groups, successful fakers and unsuccessful fakers. Analysis indicated no significant differences between groups on the measures of empathy or intelligence. However, a significant difference was found between groups on the Schizophrenia and Cynicism scales and falling just short of significance on the Hypochondriasis scale. These results suggested that individuals able to fake PTSD are more insightful and less subjective, which makes them better at role-playing. 相似文献
950.
Loevinger J 《Journal of personality assessment》2002,78(2):195-208
The career of a psychologist whose work has been on the fringe of psychometrics, of personality theory, and, at a stretch, of psychoanalytic theory and the philosophy of science is described in this article. 相似文献