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11.
Current Psychology - Based on Farber’s burnout proposal, the first aim of this study was to examine the psychometric properties of the short version of the Burnout Clinical Subtype...  相似文献   
12.
Abreu  Filipa  Garber  Paul A.  Souto  Antonio  Presotto  Andrea  Schiel  Nicola 《Animal cognition》2021,24(3):629-643

To increase efficiency in the search for resources, many animals rely on their spatial abilities. Specifically, primates have been reported to use mostly topological and rarely Euclidean maps when navigating in large-scale space. Here, we aimed to investigate if the navigation of wild common marmosets inhabiting a semiarid environment is consistent with a topological representation and how environmental factors affect navigation. We collected 497 h of direct behavioral and GPS information on a group of marmosets using a 2-min instantaneous focal animal sampling technique. We found that our study group reused not only long-route segments (mean of 1007 m) but entire daily routes, a pattern that is not commonly seen in primates. The most frequently reused route segments were the ones closer to feeding sites, distant to resting sites, and in areas sparse in tree vegetation. We also identified a total of 56 clustered direction change points indicating that the group modified their direction of travel. These changes in direction were influenced by their close proximity to resting and feeding sites. Despite our small sample size, the obtained results are important and consistent with the contention that common marmosets navigate using a topological map that seems to benefit these animals in response to the exploitation of clustered exudate trees. Based on our findings, we hypothesize that the Caatinga landscape imposes physical restrictions in our group’s navigation such as gaps in vegetation, small trees and xerophytic plants. This study, based on preliminary evidence, raises the question of whether navigation patterns are an intrinsic characteristic of a species or are ecologically dependent and change according to the environment.

  相似文献   
13.
There is a frequent need to measure the degree of agreement among R observers who independently classify n subjects within K nominal or ordinal categories. The most popular methods are usually kappa-type measurements. When = 2, Cohen's kappa coefficient (weighted or not) is well known. When defined in the ordinal case while assuming quadratic weights, Cohen's kappa has the advantage of coinciding with the intraclass and concordance correlation coefficients. When > 2, there are more discrepancies because the definition of the kappa coefficient depends on how the phrase ‘an agreement has occurred’ is interpreted. In this paper, Hubert's interpretation, that ‘an agreement occurs if and only if all raters agree on the categorization of an object’, is used, which leads to Hubert's (nominal) and Schuster and Smith's (ordinal) kappa coefficients. Formulae for the large-sample variances for the estimators of all these coefficients are given, allowing the latter to illustrate the different ways of carrying out inference and, with the use of simulation, to select the optimal procedure. In addition, it is shown that Schuster and Smith's kappa coefficient coincides with the intraclass and concordance correlation coefficients if the first coefficient is also defined assuming quadratic weights.  相似文献   
14.
Although sympathy is a powerful other-focused motivation, not all individuals will experience sympathy when it is appropriate. Immigrants, as a disadvantaged out-group, are especially in need of sympathy and, given the tensions of the immigration debate, are at-risk for low sympathy. Indeed, past research has found that sympathy is less likely to be experienced toward disliked out-groups. In the current research, we investigated the role of need for closure (NFC), or the general desire for epistemic certainty, on the experience of sympathy toward immigrants in Italy, a nation where the immigration debate is becoming increasingly fractious. Consistent with past research on the roles of NFC and the binding moral foundations (i.e., a concern for the well-being of groups) on prejudice toward out-groups, we propose that individuals with a high NFC, and who endorsed the binding moral foundations (i.e., a concern for the well-being of groups), would be particularly likely to have decreased sympathy toward immigrants in Italy. In line with past research and our hypotheses, in three studies we found that the binding foundations mediated the NFC effect on decreased sympathy toward immigrants in Italy. Conceptually, these individuals can strongly adopt traditional cultural norms as a way to acquire stable knowledge; this can make sympathy toward immigrants less likely, as they both stand outside “traditional” morality, as well can threaten the stability of natives’ knowledge.  相似文献   
15.
This study applies an intervention based on autonomy support through dialogic learning to examine effects on motivation and the promotion of physical activity and sport involvement during schoolchildren’s leisure time. One hundred and two primary school students, aged 11–13 years, participated (M = 10.93, SD = 0.75). The sample was divided into two groups: an experimental group (49 students) and a control group (53 students). A quasi-experimental study was conducted in physical education classes over the course of 9 months. Assessments of autonomy support from teachers, family, and peers; basic psychological needs; self-determined motivation in physical education and during leisure time; planned behavior variables; physical activity intention; and estimated and actual physical exercise behavior time were included in the model. Following the intervention, the results revealed that greater autonomy support by the teacher, the family and peers, satisfaction of the basic psychological needs, self-determined motivation during physical education class and during free time, greater perceived control, favorable attitude and intention to engage in physical activity contributed to the explanation of student physical activity involvement. These results suggest that when students receive extensive social support from diverse social agents that essential precursors to physical activity are strengthened and contribute to increased motivation and actual physical activity involvement. Efforts to promote effective communications with students and other pedagogical efforts, such as providing dialogic learning opportunities, should be considered in order to strengthen physical activity motivation and involvement in students.  相似文献   
16.
The role of context in object recognition   总被引:10,自引:0,他引:10  
In the real world, objects never occur in isolation; they co-vary with other objects and particular environments, providing a rich source of contextual associations to be exploited by the visual system. A natural way of representing the context of an object is in terms of its relationship to other objects. Alternately, recent work has shown that a statistical summary of the scene provides a complementary and effective source of information for contextual inference, which enables humans to quickly guide their attention and eyes to regions of interest in natural scenes. A better understanding of how humans build such scene representations, and of the mechanisms of contextual analysis, will lead to a new generation of computer vision systems.  相似文献   
17.
ABSTRACT— People in all cultures have shared perceptions about the personality characteristics of the typical member of their own culture and of typical members of other cultures. Recent collaborative work has provided validated assessments of the personality profiles of over 50 cultures, and judged by these criteria, perceptions of national character are unfounded stereotypes. An appreciation of that fact by the public might improve international relations, so research is needed to understand the origins and persistence of national-character stereotypes. Psychologists have begun to explore the utility of aggregate personality profiles, which reflect subtle but real differences between cultures in mean levels of personality traits.  相似文献   
18.
Subjective Situations and Logical Omniscience   总被引:1,自引:0,他引:1  
Moreno  Antonio  Cortés  Ulises  Sales  Ton 《Studia Logica》2002,72(1):7-29
The beliefs of the agents in a multi-agent system have been formally modelled in the last decades using doxastic logics. The possible worlds model and its associated Kripke semantics provide an intuitive semantics for these logics, but they commit us to model agents that are logically omniscient. We propose a way of avoiding this problem, using a new kind of entities called subjective situations. We define a new doxastic logic based on these entities and we show how the belief operators have some desirable properties, while avoiding logical omniscience. A comparison with two well-known proposals (Levesque's logic of explicit and implicit beliefs and Thijsse's hybrid sieve systems) is also provided.  相似文献   
19.
In a community-dwelling sample (N = 4,790; age range 14-94), we examined whether personality traits prospectively predicted performance on a verbal fluency task. Open, extraverted, and emotionally stable participants had better verbal fluency. At the facet level, dispositionally happy and self-disciplined participants retrieved more words; those prone to anxiety and depression and those who were deliberative retrieved fewer words. Education moderated the association between conscientiousness and fluency such that participants with lower education performed better on the fluency task if they were also conscientious. Age was not a moderator at the domain level, indicating that the personality-fluency associations were consistent across the life span. A disposition toward emotional vulnerability and being less open, less happy, and undisciplined may be detrimental to cognitive performance.  相似文献   
20.
In-group favouritism has become a variable of enormous importance in the study of inter-ethnic relations. According to current approaches, it can be understood as a tendency among the members of one group to favour or value the behaviour, attitudes, preferences or perceptions of their own group over those of another group to which they do not belong. The aim of this work is to study the psychometric properties of a new test for measuring inter-ethnic in-group bias, in majority (native) and minority (immigrant) groups. The test is based on the acculturation areas of the Relative Acculturation Extended Model (RAEM). Participants were 992 Spaniards and 975 immigrants (500 Romanians and 475 Ecuadorians). The reliability estimate and validity evidence for these samples show that the psychometric properties of the In-group Bias Test are appropriate for use in multi-ethnic contexts, as it can be used in majority (native) and minority (Romanian and Ecuadorian immigrants) groups.  相似文献   
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