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81.
Target velocity effects on manual interception kinematics 总被引:3,自引:0,他引:3
Participants generated manual interception movements toward a target cursor that moved across a computer screen. The target reached its peak velocity either during the first third, at the midpoint, or during the last third of the movement. In Experiment 1 the view of the target was available for either the first 316, 633, 950, or 1267 ms, after which it disappeared. Results showed that for all viewing conditions, the timing of the interception velocity was related to the temporal properties of the target's trajectory. In Experiment 2, when the portion of the target trajectory that was viewed was reversed (such that participants did not see the first 316, 633, 950, or 1267 ms of the trajectory, but instead saw only the later portions of the trajectory), there was no clear relationship between the target trajectory and the timing of the aiming trajectory. These results suggest that participants use visual information early in the target's trajectory to form a representation of the target motion that is used to facilitate manual interception. 相似文献
82.
Intensive interviews and self-report questionnaires were used to investigate parental, peer, and teacher influences on the prosocial and antisocial behaviors of Hong Kong Chinese adolescents. Students came from 5 academically different high schools. Results indicated that perceived parental influence was positively associated with frequency of prosocial behavior and negatively associated with frequency of delinquent behavior. Students with good relationships with their parents and peers showed lower frequencies of antisocial behaviors than did students with bad relationships. Adolescents in different identity statuses (achievement, moratorium, foreclosure, diffusion; E. H. Erikson, 1968) showed different patterns of prosocial and antisocial behaviors. For example, adolescents in the identity achievement group exhibited high frequencies of prosocial behaviors and low frequencies of antisocial behaviors, but those in the identity moratorium group exhibited quite high frequencies of both prosocial and antisocial behaviors. 相似文献
83.
84.
Michalak EE Jang KL Tam EM Yatham LN Lam RW Livesley WJ 《Journal of personality disorders》2004,18(5):448-458
Although a large body of research has accumulated concerning the relationship between nonseasonal depression and personality, comparatively few studies have examined the relationship between seasonal affective disorder (SAD) and personality. This study compared dimensional aspects of personality in patients diagnosed with SAD (N = 60), nonseasonal depression (N = 273), and nonclinical controls (N = 297) using the Dimensional Assessment of Personality Pathology (DAPP-BQ; Livesley & Jackson, in press). Analysis by ANCOVA indicated that significant between-group differences occurred in several of the 18 DAPP-BQ dimensions, with patients with SAD exhibiting personality psychopathology that was intermediate between the nonclinical sample and patients with nonseasonal depression. The results demonstrated that the traits associated with seasonal and nonseasonal depression differ in degree, not kind. 相似文献
85.
Suicide ideation and its relationship to depressed mood in a community sample of adolescents in Hong Kong. 总被引:6,自引:0,他引:6
A sample of 996 Chinese adolescents in Hong Kong provided information about their suicide ideation. Their depressive symptoms were measured by the Chinese Beck Depression Inventory (C-BDI), and a broad range of stressors were also assessed as potential predictors to level of suicide ideation. The stressors and C-BDI scores predicted 33% of the variance in suicide ideation. In boys, most of the prediction was attributable to C-BDI scores, suggesting that depression mediated the effects of stressors. In girls, C-BDI scores, perceptions of low parental caring, and high conflict with parents had additive effects in predicting level of suicide ideation. This study contributes needed information about a non-Western population and highlights gender differences. 相似文献
86.
The effects of dispositional optimism and coping on the link between unemployment and psychological health were studied among 79 employed and 104 unemployed Hong Kong Chinese women. Results indicated that optimism, indexed by the Chinese version of the Revised Life Orientation Test (C-RLOT), moderated the effect of unemployment on psychological health. The less optimistic women were more psychologically impaired by losing their jobs. Among the unemployed women, the more optimistic ones and those who were more able to distance themselves from job loss fared better. Nevertheless, coping did not mediate the connection between optimism and psychological outcomes. These findings suggest that optimism is an important personal resource for coping with unemployment in Hong Kong Chinese, but whether coping mediates the effects of optimism on psychological health or not depends on other contextual factors. Ways to ensure more reliable prediction regarding the connections between optimism, coping and psychological health in future research were discussed. 相似文献
87.
88.
Siu -Luen Luk Patrick Wing -Leung Leung John Bacon-Shone Felice Lieh-Mak 《Journal of abnormal child psychology》1991,19(2):219-232
Nearly all 3-year-old Chinese children in Hong Kong attend preschool facilities, making it possible to study their behavior in a group learning situation based upon teachers' perception. The Preschool Behavior Checklist (PBCL), a teacher's questionnaire, was applied to a random sample of 851 Chinese children, ages 36 to 48 months. The factor structure of the PBCL was very similar to that obtained from its original British study, supporting its usage cross-culturally. Prevalence of behavior disorder was high as defined by the PBCL. This reflected specific cultural demands at school settings. Significant sex differences were also found in the overall rate of behavior disorder and symptom patterns. As in other studies, boys had more hyperactive, conduct, and speech problems. The results suggested a certain degree of universality of symptomatology for children at the preschool level.This project was funded by the Hong Kong Society for Child Health and Development. We are grateful to all the kindergartens and child care centers which participated in this project. Valuable assistance was provided by the Education Department and the Medical Health Department. 相似文献
89.
A theory, the parallel force unit model, is advanced in which the buildup and decline of force in rapid responses of short duration are assumed to reflect variability in timing of several parallel force units. Response force is conceived of as being a summation of a large number of force units, each acting independently of one another. Force is controlled by either the number of recruited force units or the duration each unit contributes its force. Several predictions are derived on the basis of this theory and are shown to be in qualitative agreement with empirical findings about both the mean and variability of brief force impulses. The model also has consequences for the temporal properties of a response. For example, under certain circumstances, it predicts a reciprocal relation between reaction time and response force. Although the theory is proposed as a psychological account, relations between the assumptions and basic principles in neurophysiology are considered. Possible future applications and generalizations of the theory are discussed. 相似文献
90.