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551.
Marie-Claude Gaudet Michel Tremblay Olivier Doucet 《European Journal of Work and Organizational Psychology》2013,22(6):897-914
Using data collected from three different sources (N = 294), we examined a model in which perceived organizational justice (distributive, procedural, and interactional) and emotional exhaustion mediate the relationship between contingent reward leadership (CRL) and two performance indicators, namely organizational citizenship behaviours (OCB) and absenteeism. We found that procedural justice mediates the negative relationship between CRL and emotional exhaustion while controlling for work overload and transformational leadership. We also found that emotional exhaustion plays a mediating role in the relationship between two dimensions of justice (procedural and interactional) and both OCB and absenteeism. Interactional justice and distributive justice were also directly linked to OCB. Implications of these findings for research on leadership, psychological health, and organizational justice are discussed. 相似文献
552.
Geneviève Jourdain Michel Vézina 《European Journal of Work and Organizational Psychology》2013,22(4):483-496
The aim of this study is to examine the influence of the sources of psychological stress at work assumed by the Demand–Control–Support (DCS) model on presenteeism propensity. Research propositions are derived from the dynamic version of the Demand–Control model, to which we added the dimension of social support, which is part of the DCS model. Data were obtained from a large representative sample consisting of 1609 public and private sector workers living in the Canadian province of Québec, who responded to a questionnaire, administered using computer-assisted interviewing over a 3-month period in 2007–2008. The results indicate that the combination of low decision authority and high supervisor's support attenuates the positive relationship between job demands and presenteeism propensity within a 10-year time frame of exposure to a new job. 相似文献
553.
This Special Issue of Neurobiology of Learning and Memory dedicated to Dr. Richard Thompson to celebrate his 80th birthday and his numerous contributions to the field of learning and memory gave us the opportunity to revisit the hypothesis we proposed more than 25years ago regarding the biochemistry of learning and memory. This review summarizes our early 1980s hypothesis and then describes how it was tested and modified over the years following its introduction. We then discuss the current status of the hypothesis and provide some examples of how it has led to unexpected insights into the memory problems that accompany a broad range of neuropsychiatric disorders. 相似文献
554.
Belguermi A Bovet D Pascal A Prévot-Julliard AC Saint Jalme M Rat-Fischer L Leboucher G 《Animal cognition》2011,14(6):909-914
Considered as plague in many cities, pigeons in urban areas live close to human activities and exploit this proximity to find
food which is often directly delivered by people. In this study, we explored the capacity of feral pigeons to take advantage
of this human-based food resource and discriminate between friendly and hostile people. Our study was conducted in an urban
park. Pigeons were fed by two experimenters of approximately the same age and skin colour but wearing coats of different colours.
During the training sessions, the two human feeders displayed different attitudes: one of the feeders was neutral and the
second was hostile and chased away the pigeons. During the two test phases subsequent to the training phase, both feeders
became neutral. Two experiments were conducted, one with one male and one female feeder and the second with two female feeders.
In both experiments, the pigeons learned to quickly (six to nine sessions) discriminate between the feeders and maintained
this discrimination during the test phases. The pigeons avoided the hostile feeder even when the two feeders exchanged their
coats, suggesting that they used stable individual characteristics to differentiate between the experimenter feeders. Thus,
pigeons are able to learn quickly from their interactions with human feeders and use this knowledge to maximize the profitability
of the urban environment. This study provides the first experimental evidence in feral pigeons for this level of human discrimination. 相似文献
555.
Nancy E. Sherman Rebecca Michel Christopher Rybak G. Kevin Randall Jeannette Davidson 《Adultspan: Theory Research & Practice》2011,10(2):78-90
Researchers explored predictors of meaning in life such as physical and mental health and volunteerism in a representative sample of older adults. Measures included the Geriatric Depression Scale and the Life Regard Index. Implications for counseling older adults are discussed. 相似文献
556.
Nelis D Kotsou I Quoidbach J Hansenne M Weytens F Dupuis P Mikolajczak M 《Emotion (Washington, D.C.)》2011,11(2):354-366
This study builds on earlier work showing that adult emotional competencies (EC) could be improved through a relatively brief training. In a set of 2 controlled experimental studies, the authors investigated whether developing EC could lead to improved emotional functioning; long-term personality changes; and important positive implications for physical, psychological, social, and work adjustment. Results of Study 1 showed that 18 hr of training with e-mail follow-up was sufficient to significantly improve emotion regulation, emotion understanding, and overall EC. These changes led in turn to long-term significant increases in extraversion and agreeableness as well as a decrease in neuroticism. Results of Study 2 showed that the development of EC brought about positive changes in psychological well-being, subjective health, quality of social relationships, and employability. The effect sizes were sufficiently large for the changes to be considered as meaningful in people's lives. 相似文献
557.
Vanessa K. Bohns Michel J.J. Handgraaf Hillie Aaldering Jennifer Logg 《Journal of experimental social psychology》2011,47(3):676-680
Previous research conducted in the United States has demonstrated that help-seekers fail to appreciate the embarrassment and awkwardness (i.e., social costs) targets would experience by saying “no” to a request for help. Underestimation of such social costs leads help-seekers to underestimate the likelihood that others will comply with their requests. We hypothesized that this error would be attenuated in a collectivistic culture. We conducted a naturalistic help-seeking study in the U.S. and China and found that Chinese help-seekers were more accurate than American help-seekers at predicting compliance. A supplementary scenario study in which we measured individual differences in collectivistic and individualistic orientations within a single culture provided converging evidence for the association between collectivism and expectations of compliance. In both cases, the association between collectivism (culturally defined or measured) and predicted compliance was mediated by participants' ratings of the social costs of saying “no”. 相似文献
558.
The present study investigates whether updating an important function of executive control can be driven by unconscious reward cues. Participants had to memorize several numbers and update those numbers independently according to a sequence of arithmetic operations. At the beginning of each trial, a reward (1 euro or 5 cents) was presented, either subliminally or supraliminally. Participants could earn the reward if they found the correct response on the updating task. Results showed better performance when a high (conscious or unconscious) reward was at stake compared to a low reward. This suggests that subliminal information can influence a component process of executive control traditionally thought to require consciousness. 相似文献
559.
In Germany, according to their prior achievement students are tracked into different types of secondary school that provide profoundly different options for their future educational careers. In this paper we suggest that as a result, school tracks clearly differ in their social status or reputation. This should translate into different collective school‐type identities for their students, irrespective of the students’ personal academic self‐concepts. We examine the extent to which collective school‐type identity systematically varies as a function of the school track students are enrolled in, and the extent to which students’ collective school‐type identity makes a unique contribution beyond academic self‐concept and school track in predicting scholastic motivation. In two cross‐sectional studies a measure of collective school‐type identity is established and applied to explain motivational differences between two school tracks in Berlin. In Study 1 (N = 39 students) the content of the collective school‐type identity is explored by means of an open format questionnaire. Based on these findings a structured instrument (semantic differential) to measure collective school‐type identity is developed. In Study 2 (N = 1278 students) the assumed structure with four subscales (Stereotype Achievement, Stereotype Motivation, Stereotype Social, and Compensation) is proved with confirmatory factor analysis. This measure is used to compare the collective school‐type identity across school tracks and predict motivational outcomes. Results show large differences in collective school‐type identity between students of different school tracks. Furthermore, these differences can explain motivational differences between school tracks. Collective school‐type identity has incremental predictive power for scholastic motivation, over and above the effects of academic self‐concept and school track. 相似文献
560.
When listening to speech in everyday-life situations, our cognitive system must often cope with signal instabilities such as sudden breaks, mispronunciations, interfering noises or reverberations potentially causing disruptions at the acoustic/phonetic interface and preventing efficient lexical access and semantic integration. The physiological mechanisms allowing listeners to react instantaneously to such fast and unexpected perturbations in order to maintain intelligibility of the delivered message are still partly unknown. The present electroencephalography (EEG) study aimed at investigating the cortical responses to real-time detection of a sudden acoustic/phonetic change occurring in connected speech and how these mechanisms interfere with semantic integration. Participants listened to sentences in which final words could contain signal reversals along the temporal dimension (time-reversed speech) of varying durations and could have either a low- or high-cloze probability within sentence context. Results revealed that early detection of the acoustic/phonetic change elicited a fronto-central negativity shortly after the onset of the manipulation that matched the spatio-temporal features of the Mismatch Negativity (MMN) recorded in the same participants during an oddball paradigm. Time reversal also affected late event-related potentials (ERPs) reflecting semantic expectancies (N400) differently when words were predictable or not from the sentence context. These findings are discussed in the context of brain signatures to transient acoustic/phonetic variations in speech. They contribute to a better understanding of natural speech comprehension as they show that acoustic/phonetic information and semantic knowledge strongly interact under adverse conditions. 相似文献