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排序方式: 共有236条查询结果,搜索用时 15 毫秒
191.
Olivia Morgan Lapenta Ana Paula Xavier Sônia Cavalcanti Côrrea Paulo Sérgio Boggio 《Behavior research methods》2017,49(6):2083-2092
Human action perception is so powerful that people can identify movement efficiently in the absence of pictorial information, such as in point-light displays. Interest is growing in this type of stimulus for research in neuroscience. This interest stems from the advantage of separating the component of pure human action kinematics from other pictorial information, such as facial expression and muscle contraction. Although several groups have previously developed datasets of human point-light actions, due to the lack of datasets composed of daily actions with short durations, we developed 20 biological and 40 control (scrambled) point-light movements by using the technique of recording people wearing reflector patches. The videos are about 1 s long. Subsequently, we performed a judgment task in which 100 participants (50 male and 50 female) evaluated each video according to three categories: human action resemblance, performed action, and gender of actor. We present the mean scores of each evaluation for each video, and further propose a selection of the most suitable videos to be used as human point-light action displays and scrambled point-light displays for control. Finally, we discuss our findings on the gender attributions of the point-light displays. 相似文献
192.
A.P. de Bruin Frank C. Bakker Ra?ul R.D. Oudejans 《Psychology of sport and exercise》2009,10(1):72-79
ObjectivesTo examine the relationships between disordered eating in female gymnasts and dancers and their perspective towards achievement in sport and dance, respectively. With an emphasis on outperforming others (ego involvement), more disordered eating was expected than when personal progress (task involvement) was emphasized.MethodsNinety-four aesthetic performers from gymnastics (n = 59) and dance (n = 35) completed questionnaires measuring ego and task involvement (individual orientation and motivational climate), dieting, self-esteem, perfectionism and weight-related peer and coach pressure.ResultsPartial correlations indicated that a stronger ego orientation was related to more dieting, greater perfectionism, more weight-related peer pressure, and lower self-esteem. Similar relationships were found for performance climate. Mastery climate on the other hand was negatively related to dieting, and coach and peer pressure, suggesting that when performers perceived the motivational climate as mastery, less frequent dieting was reported and less weight-related coach and peer pressure was perceived. No relationships were found between task orientation and disordered eating. Most importantly, regression analysis showed that after controlling for BMI, both ego orientation and mastery climate made a unique significant contribution to explaining dieting variance.ConclusionsGoal achievement theory is an important framework for explaining disordered eating in female aesthetic performers. Both ego orientation and mastery climate play a role in dieting of gymnasts and dancers. Aesthetic performers who are strongly ego-oriented tend to display more disordered eating correlates. Furthermore, it seems that to protect against disordered eating, coaches and teachers should create a mastery climate and target self-improvement and self-referenced comparisons over interpersonal competitiveness. 相似文献
193.
STURLA FOSSUM WILLY-TORE MØRCH BJØRN H. HANDEGÅRD MAY B. DRUGLI BO LARSSON 《Scandinavian journal of psychology》2009,50(2):173-181
Participants were 121 children, aged 4–8 years referred for conduct problems, and their mothers. A parent training intervention was implemented in two outpatient clinics in Norway. Treatment responders were defined as children scoring below a cut-off on the Eyberg Child Behavior Inventory, a score below an optimal cut-off for children in day-care and school as reported by teachers, in addition to a 30% reduction or greater in observed negative parenting. Self-reported parenting practices were explored as potential mediators. The results of logistic regression analyses showed that high levels of maternal stress, clinical levels of ADHD, and being a girl predicted a poorer outcome in conduct problems at home, while pretreatment clinical levels of ADHD predicted a poorer outcome as perceived by the teachers. Harsh and inconsistent parental disciplining emerged as significant partial mediators of changes in conduct problems, highlighting the importance of altering parenting practices to modify young children's conduct problems. 相似文献
194.
195.
Pagani LS Japel C Vaillancourt T Côté S Tremblay RE 《Journal of abnormal child psychology》2008,36(1):41-53
Using data from three waves of a large Canadian data set, we examine the relationship between two middle childhood trajectory
variables, family dysfunction and anxiety. We draw upon family systems theory and developmental psychopathology, while attempting
to expand their boundaries by capitalizing on the strengths within both approaches. Our data treatment strategy, guided by
the life course analytical framework, included separate multivariate logits to examine this relationship, with and without
the extent to, which selected explanatory risk variables predicted belonging to the highest family dysfunction trajectory.
We also explored possible interactions between anxiety and explanatory risk variables. Supporting our hypothesis, a prolonged
duration of high doses of family dysfunction was associated with the most extreme developmental trajectories of anxious behavior
during middle childhood for both boys and girls. This relationship prevailed above and beyond the influence of other correlates
of family dysfunction such as marital transition, socioeconomic status, family size, and depressive symptoms experienced by
the informant (mostly mothers).
Specific details regarding the sample, characteristics of measures, and unspecified estimates and their standard errors per
data source are available from the first author in the form of tables and figures. 相似文献
196.
Segurado Torres A Agulló Tomás E Rodríguez Suárez J Agulló Tomás MS Boada i Grau J Medina Centeno R 《Psicothema》2008,20(4):739-744
Social relations in the workplace are one of the main sources of risk for the onset of mobbing. In this work, we analyzed, through the perceived social climate, the influence of interpersonal relations on the characterization of the processes of mobbing, in a sample of local police (N = 235). In particular, the policemen and women's opinions of the quality of the personal relations among the group members and the treatment they receive from the command posts were assessed. The results of the study show that the development of guidelines of social interaction based on discrimination and abuse of authority are predicting variables of mobbing in this group. 相似文献
197.
Cacho Fernández R Garmendia Rezola L Vegas Moreno O Azpíroz Sánchez A 《Psicothema》2008,20(4):818-824
We examined the influence of individual psychological profile and social behavior on tumor development in dominant male mice. Male OF1 mice were subjected to an open field test (OFT) to observe their motor activity and latency. Subsequently, the animals were divided into three groups: Stress-Non-Inoculated (SNI), Stress-Inoculated (SI) and Control-Inoculated (CI). The SI and CI groups were inoculated with tumor cells and the SNI group with vehicle. SNI and SI were exposed to social stress with an anosmic intruder six (T1) and twenty one (T2) days after inoculation and their behavior was analyzed. After T2, subjects were put down and the pulmonary metastatic foci counted. SI developed greater pulmonary metastasis than CI, indicating an effect of stress despite the animal's dominant status. Active animals developed less pulmonary metastasis than their passive counterparts. No differences were found in social behavior at T1. Differences were found, however, in some behavioral categories at T2 between SI and SNI, and between active and passive animals. These differences indicate an effect of tumor development on social behavior that is more evident in passive subjects. 相似文献
198.
Vargas-Pérez H Sellings LH Paredes RG Prado-Alcalá RA Díaz JL 《Journal of motor behavior》2008,40(6):587-593
The authors investigated the effect of the opioid antagonist naloxone on wheel-running behavior in Balb/c mice. Naloxone delayed the acquisition of wheel-running behavior, but did not reduce the expression of this behavior once acquired. Delayed acquisition was not likely a result of reduced locomotor activity, as naloxone-treated mice did not exhibit reduced wheel running after the behavior was acquired, and they performed normally on the rotarod test. However, naloxone-blocked conditioned place preference for a novel compartment paired previously with wheel running, suggesting that naloxone may delay wheel-running acquisition by blocking the rewarding or reinforcing effects of the behavior. These results suggest that the endogenous opioid system mediates the initial reinforcing effects of wheel running that are important in acquisition of the behavior. 相似文献
199.
200.
Basketball jump shooting is controlled online by vision 总被引:1,自引:0,他引:1
de Oliveira RF Huys R Oudejans RR van de Langenberg R Beek PJ 《Experimental psychology》2007,54(3):180-186
An experiment was conducted to examine whether basketball jump shooting relies on online visual (i.e., dorsal stream-mediated) control rather than motor preprogramming. Seventeen expert basketball players (eight males and nine females) performed jump shots under normal vision and in three conditions in which movement initiation was delayed by zero, one, or two seconds relative to viewing the basket. Shots were evaluated in terms of both outcome and execution measures. Even though most shots still landed near the basket in the absence of vision, end-point accuracy was significantly better under normal visual conditions than under the delay conditions, where players tended to undershoot the basket. In addition, an overall decrease of inter-joint coordination strength and stability was found as a function of visual condition. Although these results do not exclude a role of motor preprogramming, they demonstrate that visual sensory information plays an important role in the continuous guidance of the basketball jump shot. 相似文献