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121.
This study investigated the development of hand preference for bimanual manipulative activities and pointing gestures in toddlers observed longitudinally over a 5-month period, in relation to language acquisition. The lexical spurt was found to be accompanied by an increase in the right-sided bias for pointing but not for manipulation. Moreover, results revealed a significant correlation between hand preference for imperative pointing gestures and manipulative activities in children who did not experience the lexical spurt during the observational period. By contrast, measures of handedness for declarative pointing were never correlated with those of handedness for manipulation. This study illustrates the complex relationship between handedness and language development and emphasizes the need to take the different functions of pointing gestures into account. 相似文献
122.
This study aimed to investigate (a) whether it is possible to increase emotional competence (EC) in adulthood; (b) whether this improvement results in better mental, physical, and social adjustment; (c) whether this improvement can be maintained 1 year later; and (d) whether these benefits are accompanied by a reduction in stress-hormone secretion (i.e., cortisol). One hundred and thirty-two participants were randomly assigned to an EC-enhancing intervention (in group format) or to a control group. Participants in the intervention group underwent a specifically designed 15-hr intervention targeting the 5 core emotional competencies, complemented with a 4-week e-mail follow-up. Results reveal that the level of emotional competencies increased significantly in the intervention group in contrast with the control group. This increase resulted in lower cortisol secretion, enhanced subjective and physical well-being, as well as improved quality of social and marital relationships in the intervention group. No significant change occurred in the control group. Peer reports on EC and quality of relationships confirmed these results. These data suggest that emotional competencies can be improved, with effective benefits on personal and interpersonal functioning lasting for at least 1 year. The theoretical implications of these results as well as their practical implications for the construction and the development of effective emotional competencies interventions are discussed. 相似文献
123.
Judith Hegeman Bart Nienhuis Bart van den Bemt Vivian Weerdesteyn Jacques van Limbeek Jacques Duysens 《Human movement science》2011,30(2):384-395
Accidental falls in older individuals are a major health and research topic. Increased reaction time and impaired postural balance have been determined as reliable predictors for those at risk of falling and are important functions of the central nervous system (CNS). An essential risk factor for falls is medication exposure. Amongst the medications related to accidental falls are the non-steroidal anti-inflammatory drugs (NSAIDs). About 1-10% of all users experience CNS side effects. These side effects, such as dizziness, headaches, drowsiness, mood alteration, and confusion, seem to be more common during treatment with indomethacin. Hence, it is possible that maintenance of (static) postural balance and swift reactions to stimuli are affected by exposure to NSAIDs, indomethacin in particular, consequently putting older individuals at a greater risk for accidental falls. The present study investigated the effect of a high indomethacin dose in healthy middle-aged individuals on two important predictors of falls: postural balance and reaction time. Twenty-two healthy middle-aged individuals (59.5 ± 4.7 years) participated in this double-blind, placebo-controlled, randomized crossover trial. Three measurements were conducted with a week interval each. A measurement consisted of postural balance as a single task and while concurrently performing a secondary cognitive task and reaction time tasks. For the first measurement indomethacin 75 mg (slow-release) or a visually identical placebo was randomly assigned. In total, five capsules were taken orally in the 2.5 days preceding assessment. The second measurement was without intervention, for the final one the first placebo group got indomethacin and vice versa. Repeated measures GLM revealed no significant differences between indomethacin, placebo, and baseline in any of the balance tasks. No differences in postural balance were found between the single and dual task conditions, or on the performance of the dual task itself. Similarly, no differences were found on the manual reaction time tasks. The present study showed that a high indomethacin dose does not negatively affect postural balance and manual reaction time in this healthy middle-aged population. Although the relatively small and young sample limits the direct ability to generalize the results to a population at risk of falling, the results indicate that indomethacin alone is not likely to increase fall risk, as far as this risk is related to abovementioned important functions of the CNS, and not affected by comorbidities. 相似文献
124.
Thomas Kessler Amélie Mummendey Friedrich Funke Rupert Brown Jens Binder Hanna Zagefka Jacques‐Philippe Leyens Stéphanie Demoulin Annemie Maquil 《European journal of social psychology》2010,40(6):985-997
Immigration, cultural diversity and integration are among the most central challenges for modern societies. Integration is often impeded by negative emotions and prejudices held by the majority members towards immigrants in a common society. Based on the ingroup projection model (Mummendey & Wenzel, 1999), we examined the impact of perceived relative ingroup prototypicality on intergroup emotions and prejudice. Additionally, we examined whether this impact is causal and explored the issue of causality in more detail contrasting a linear causal model with bi‐directional or reciprocal causality. Hypotheses were tested in a study with a two‐wave panel of majority members (N=1085) in Germany. We examined the proposed relations between relative ingroup prototypicality, intergroup emotions and prejudice and determined the causal direction of these relationships. Results support the predictive power of relative ingroup prototypicality on intergroup emotions and prejudice. Moreover, most causal relations between our measures are reciprocally causal. We discuss the implications of these findings for the general conception of prejudice and intergroup emotions. Copyright © 2009 John Wiley & Sons, Ltd. 相似文献
125.
Comparing 5/7 and 2/9: Adults can do it by accessing the magnitude of the whole fractions 总被引:1,自引:0,他引:1
This study investigated adults' ability to compare the magnitude of fractions without common components (e.g., 5/7 and 3/8), and the representation accessed in that process. We hypothesized that the absence of common components would enhance access to the magnitude of the fractions (i.e., a holistic representation) rather than a direct comparison of the numerators or the denominators. This hypothesis was tested in four between-subject conditions. Two types of experimental pairs were used that differed in the congruity of the magnitude of the denominator and the magnitude of the fraction. Each type of experimental pair was presented either alone or with filler pairs that introduced variability into the congruity of the components. In all four conditions, accuracy was above chance and the effect of the distance between the fractions on response times was significant, indicating an access to the magnitude of the fractions. Nevertheless, the variability of the congruity of the components had also a significant effect on performance, suggesting that the relative magnitude of the components was also processed. In conclusion, the representation of the fraction magnitude is hybrid, rather than purely holistic, in a magnitude-comparison task on fractions without common components. 相似文献
126.
Paul Boekhout Tamara van Gog Margje W. J. van de Wiel Dorien Gerards‐Last Jacques Geraets 《The British journal of educational psychology》2010,80(4):557-566
Background. Worked examples are very effective for novice learners. They typically present a written‐out ideal (didactical) solution for learners to study. Aims. This study used worked examples of patient history taking in physiotherapy that presented a non‐didactical solution (i.e., based on actual performance). The effects of model expertise (i.e., worked example based on advanced, third‐year student model or expert physiotherapist model) in relation to students' expertise (i.e., first‐ or second‐year) were investigated. Sample. One hundred and thirty‐four physiotherapy students (61 first‐year and 73 second‐year). Methods. Design was 2×2 factorial with factors ‘Student Expertise’ (first‐year vs. second‐year) and ‘Model Expertise’ (expert vs. advanced student). Within expertise levels, students were randomly assigned to the Expert Example or the Advanced Student Example condition. All students studied two examples (content depending on their assigned condition) and then completed a retention and test task. They rated their invested mental effort after each example and test task. Results. Second‐year students invested less mental effort in studying the examples, and in performing the retention and transfer tasks than first‐year students. They also performed better on the retention test, but not on the transfer test. In contrast to our hypothesis, there was no interaction between student expertise and model expertise: all students who had studied the Expert examples performed better on the transfer test than students who had studied Advanced Student Examples. Conclusions. This study suggests that when worked examples are based on actual performance, rather than an ideal procedure, expert models are to be preferred over advanced student models. 相似文献
127.
Jacques Matthey 《International review of missions》2010,99(1):21-38
This paper argues that missio Dei theology must continue to provide the basis for an ecumenical missiology, provided certain problems are revisited, in line with themes of the 2010 Edinburgh study process. Among them is the need for emphasizing the vertical dimension of a transformative spirituality, somehow neglected in earlier ecumenical theologies. Only this will prevent an over‐estimation of humanity's capacities. Within a missio Dei theology the specific role of the church is to be reaffirmed: there is no way back behind integration, which remains a cornerstone of an ecumenical approach, provided it keeps a critical distance to dogmatic ecclesiologies that tend to hinder progress towards visible unity. The debate on gospel and culture has to be urgently taken up again, through a positive appreciation of syncretism and the related search for criteria in intercultural hermeneutics. This will lead to articulating pneumatological approaches to mission with Christologies. Indeed, the New Testament texts with the most universal horizon refer to Christ as Word or Wisdom and not to the Holy Spirit. The paper moves on to ask whether then the relevance of the biblical wisdom tradition should not feature more in missiology. It could provide fertile approaches to witness in a religiously plural and ecologically damaged world. Ecumenical mission should in future be shaped by wisdom as much as it has been by prophecy, and keep both traditions in creative tension. 相似文献
128.
Stphanie Demoulin Jacques‐Philippe Leyens Ramn Rodríguez‐Torres Armando Rodríguez‐Prez Paola Maria Paladino Susan T. Fiske 《International journal of psychology》2005,40(6):416-428
Social motivation has been shown to influence various cognitive processes. In the present paper, it is verified that people are motivated to view out‐groups as possessing a lesser degree of humanity than the in‐group (Leyens et al., 2000 ) and that this motivation influences logical processing in the Wason selection task. So far, studies on infra‐humanization have been shown to influence attribution of uniquely human characteristics to groups. Most of these studies focused on the attribution of secondary emotions. Results have shown that secondary emotions are preferentially attributed to in‐group members (Leyens et al., 2001 ). Also, people tend to react differently to in‐group and out‐group members displaying secondary emotions (Gaunt, Leyens, & Sindic, 2004 ; Vaes, Paladino, Castelli, Leyens, & Giovanazzi, 2003 ). In the present paper, it is argued that infra‐humanization is a two‐direction bias and that it does influence logical processing among perceivers. Specifically, infra‐humanization motivation impacts logical processing in two different directions. First, most motivation is spent to reach the desirable conclusion that the in‐group is uniquely human. Second, least motivation occurs to support the undesirable conclusion that the out‐group is uniquely human. These hypotheses are tested in four cross‐cultural studies that varied the status and the conflicting relations between groups. Results were in line with the predictions and further confirmed that infra‐humanization biases can be obtained independently of status and conflict (but see Cortes, Demoulin, Leyens, & de Renesse, 2005 ). The discussion relates these findings with in‐group favouritism and out‐group derogation (Brewer, 1999 ) and underlines the importance of infra‐humanization in counteracting system justification biases (Jost & Banaji, 1994 ). 相似文献
129.
Ramn Rodríguez‐Torres Jacques Philippe Leyens Armando Rodríguez Prez Vernica Betancor Rodriguez María N. Quiles del Castillo Stphanie Demoulin Brezo Corts 《International journal of psychology》2005,40(2):100-107
In line with the psychological essentialism perspective, Leyens et al. ( 13 2000) have hypothesized that people attribute different essences to groups and that they attribute more uniquely human characteristics to their own group than to out‐groups. Leyens et al. have focused on two types of emotions, which in Roman languages have specific labels, such as sentimientos and emociones in Spanish. A cross‐cultural study showed that sentimientos (or secondary emotions) are considered uniquely human emotions whereas emociones (or primary emotions) are perceived as nonuniquely human emotions. The present study focuses on whether this categorization into primary and secondary emotions is a spontaneous distinction that people use in their everyday lives, or whether, on the contrary, it is the result of experimental demands. The paradigm “Who says what to whom” was used to test this question. Geometrical shapes of different colours were systematically associated with different stimuli that varied in meaningfulness. In a first condition, shapes were associated with small or large items of furniture (meaningful categories) and with primary and secondary emotions. In a second condition, the items of furniture were replaced by words ending with a vowel or a consonant (meaningless categories). Subsequently, participants had to recognize which shape was associated with each stimulus. Intra‐category errors were significantly more numerous than inter‐category errors, except for the words ending with a vowel or a consonant. Stated otherwise, types of emotions were recognized like the meaningful difference between items of furniture. These results show that the distinction between primary and secondary emotions is an implicit one that people use spontaneously, and not as a result of task demands. The findings are discussed from the perspective of psychological essentialism and inter‐group relations. 相似文献
130.
本文节选自《剑桥评论》第113期上的一篇访谈,是德里达对史密斯等人信件的直接回应部分.他批评了分析哲学家对权力的滥用,并简要表达了自己的哲学观. 相似文献