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981.
The purpose of this study, based on the self-determination theory (Ryan & Deci, 2000) was to test the prediction power of student's responsibility, psychological mediators, intrinsic motivation and the importance attached to physical education in the intention to continue to practice some form of physical activity and/or sport, and the possible relationships that exist between these variables. We used a sample of 482 adolescent students in physical education classes, with a mean age of 14.3 years, which were measured for responsibility, psychological mediators, sports motivation, the importance of physical education and intention to be physically active. We completed an analysis of structural equations modelling. The results showed that the responsibility positively predicted psychological mediators, and this predicted intrinsic motivation, which positively predicted the importance students attach to physical education, and this, finally, positively predicted the intention of the student to continue doing sport. Results are discussed in relation to the promotion of student's responsibility towards a greater commitment to the practice of physical exercise. 相似文献
982.
The purpose of this study was to investigate the accuracy of parents' perception of children's reaching limits in a risk scenario. A sample of 68 parents of 1- to 4-year-olds were asked to make a prior estimate of their children's behavior and action limits in a task that involved retrieving a toy out of the water. The action modes used for reaching, accuracy of estimates, and error tendency were investigated. Several morphological variables, walking experience, and swimming program experience were analyzed as predictors of maximum and estimated maximum reachability. Most children sat to retrieve the toy out of the water and fell in while attempting to grasp beyond their reaching limit. Nearly 80% of the parents correctly predicted their children's behavior when the toy was unreachable. Parents were cautious in predicting their children's maximum reachability (>50% underestimates). Mothers were more accurate than fathers in estimating their children's reaching limit. The prediction of children's capabilities was based partially on body dimensions and proportions. 相似文献
983.
984.
Juan Espindola 《Ethical Theory and Moral Practice》2014,17(5):971-985
This paper makes the case for the permissibility of post-conflict amnesties, although not on prudential grounds. It argues that amnesties of a certain scope, targeted to certain categories of perpetrators, and offered in certain contexts are morally permissible because they are an acknowledgment of the difficulty of attributing criminal responsibility in mass violence contexts. Based on this idea, the paper develops the further claim that deciding which amnesties are permissible and which ones are not should be decided on a case-by-case basis. Against what seems to be an increasingly popular assumption of some international actors, just as "blanket" amnesties (i.e. very broad and general amnesties that foreclose criminal prosecution for all kinds of perpetrators and all kinds of wrongdoing) are impermissible, so is an absolutist rejection of all types of amnesties. 相似文献
985.
Patricia Rosell-Negre Juan Carlos Bustamante Paola Fuentes-Claramonte Víctor Costumero Sergio Benabarre Alfonso Barros-Loscertales 《Cognitive, affective & behavioral neuroscience》2014,14(2):621-634
The chance to achieve a reward starts up the required neurobehavioral mechanisms to adapt our thoughts and actions in order to accomplish our objective. However, reward does not equally reinforce everybody but depends on interindividual motivational dispositions. Thus, immediate reward contingencies can modulate the cognitive process required for goal achievement, while individual differences in personality can affect this modulation. We aimed to test the interaction between inhibition-related brain response and motivational processing in a stop signal task by reward anticipation and whether individual differences in sensitivity to reward (SR) modulate such interaction. We analyzed the cognitive–motivational interaction between the brain pattern activation of the regions involved in correct and incorrect response inhibition and the association between such brain activations and SR scores. We also analyzed the behavioral effects of reward on both reaction times for the “go” trials before and after correct and incorrect inhibition in order to test error prediction performance and postinhibition adjustment. Our results show enhanced activation during response inhibition under reward contingencies in frontal, parietal, and subcortical areas. Moreover, activation of the right insula and the left putamen positively correlates with the SR scores. Finally, the possibility of reward outcome affects not only response inhibition performance (e.g., reducing stop signal reaction time), but also error prediction performance and postinhibition adjustment. Therefore, reward contingencies improve behavioral performance and enhance brain activation during response inhibition, and SR is related to brain activation. Our results suggest the conditions and factors that subserve cognitive control strategies in cognitive motivational interactions during response inhibition. 相似文献
986.
Laura Alonso‐Recio Pilar Martín Sandra Rubio Juan M. Serrano 《Journal of Neuropsychology》2014,8(2):269-288
Our objective was to compare the ability to discriminate and categorize emotional facial expressions (EFEs) and facial identity characteristics (age and/or gender) in a group of 53 individuals with Parkinson's disease (PD) and another group of 53 healthy subjects. On the one hand, by means of discrimination and identification tasks, we compared two stages in the visual recognition process that could be selectively affected in individuals with PD. On the other hand, facial expression versus gender and age comparison permits us to contrast whether the emotional or non‐emotional content influences the configural perception of faces. In Experiment I, we did not find differences between groups, either with facial expression or age, in discrimination tasks. Conversely, in Experiment II, we found differences between the groups, but only in the EFE identification task. Taken together, our results indicate that configural perception of faces does not seem to be globally impaired in PD. However, this ability is selectively altered when the categorization of emotional faces is required. A deeper assessment of the PD group indicated that decline in facial expression categorization is more evident in a subgroup of patients with higher global impairment (motor and cognitive). Taken together, these results suggest that the problems found in facial expression recognition may be associated with the progressive neuronal loss in frontostriatal and mesolimbic circuits, which characterizes PD. 相似文献
987.
Carlos Areces Patrick Blackburn Antonia Huertas María Manzano 《Journal of Philosophical Logic》2014,43(2-3):209-238
We show that basic hybridization (adding nominals and @ operators) makes it possible to give straightforward Henkin-style completeness proofs even when the modal logic being hybridized is higher-order. The key ideas are to add nominals as expressions of type t, and to extend to arbitrary types the way we interpret \(@_i\) in propositional and first-order hybrid logic. This means: interpret \(@_i\alpha _a\) , where \(\alpha _a\) is an expression of any type \(a\) , as an expression of type \(a\) that rigidly returns the value that \(\alpha_a\) receives at the i-world. The axiomatization and completeness proofs are generalizations of those found in propositional and first-order hybrid logic, and (as is usual inhybrid logic) we automatically obtain a wide range of completeness results for stronger logics and languages. Our approach is deliberately low-tech. We don’t, for example, make use of Montague’s intensional type s, or Fitting-style intensional models; we build, as simply as we can, hybrid logicover Henkin’s logic. 相似文献
988.
Carlos G. Forero Josué Almansa Núria D. Adroher Jeroen K. Vermunt Gemma Vilagut Ron De Graaf Josep-Maria Haro Jordi Alonso Caballero 《Psychometrika》2014,79(3):470-488
Developmental studies of mental disorders based on epidemiological data are often based on cross-sectional retrospective surveys. Under such designs, observations are right-censored, causing underestimation of lifetime prevalences and correlations, and inducing bias in latent trait models on the observations. In this paper we propose a Partial Likelihood (PL) method to estimate unbiased IRT models of lifetime predisposition to develop a certain outcome. A two-step estimation procedure corrects the IRT likelihood of outcome appearance with a function depending on (a) projected outcome frequencies at the end of the risk period, and (b) outcome censoring status at the time of the observation. Simulation results showed that the PL method yielded good recovery of true frequencies and intercepts. Slopes were best estimated when events were sufficiently correlated. When PL is applied to lifetime mental health disorders (assessed in the ESEMeD project surveys), estimated univariate prevalences were, on average, 1.4 times above raw estimates, and 2.06 higher in the case of bivariate prevalences. 相似文献
989.
The Psychological Record - Rats responded for food on concurrent random interval schedules arranging seven unsignaled food-rate ratios within sessions. Pressing a changeover lever allowed... 相似文献
990.
In two self-paced, sentence-by-sentence reading experiments, we examined the difference in the processing of Spanish discourses containing overt and null pronouns. In both experiments, antecedents appeared in a single phrase (John met Mary) or in a conjoined phrase (John and Mary met). In Experiment 1, we compared reading times of sentences containing singular overt and null pronouns referring to the first or to the second mentioned antecedent. Overt pronouns caused a processing delay relative to null pronouns when they referred to the first antecedent in single but not in conjoined phrases. In Experiment 2, we compared reading times of sentences containing overt and null pronouns referring to singular or plural entities. Plural null pronouns were read faster than their singular counterparts in conjoined conditions. Plural overt pronouns were read more slowly than their null counterparts both in single and conjoined conditions. We explain our findings in a framework based on the notion of balance between processing cost and discourse function in line with the Informational Load Hypothesis. 相似文献