Effects of imagery training on cognitive performance and use of physiological measures as an assessment tool of mental effort

The effectiveness of motor imagery training on cognitive performance was examined and the physiological mechanisms involved in the contribution of mental practice to motor learning were considered. The subject's mental effort during motor imagery was assessed by using psychophysiological measures and particularly eye blink activity as an 'indirect' measurement of subjects' attention. An electronic flight simulation program (Multiple Attribute Task Battery--MATB) was used to assess performance. Twenty healthy volunteers participated in the study divided in two groups: the control group and the imagery-training group. The subjects of the imagery group were asked for additional imagery training. The subjects of the actual performing group were asked additionally to passively observe the task in order to have equal time of exposure to the task. Performance scores and physiological parameters such as heart rate, respiratory rate, eye blinking activity and muscular activity were recorded during all sessions. The results revealed significantly higher performance level of the imagery-training group than the control group. Heart rate and respiratory rate significantly increased during imagery sessions compared to rest. A slight electromyographic activity was observed during the imagination of movement. Our findings support the notion that mental practice improves motor performance in a task where spatiotemporal or dynamic control of the action is highly required. The effects of mental practice on motor performance could be explained by the existence of a top-down mechanism based on the activation of a central representation of the movements, since the vegetative activation during motor imagery seems to be centrally controlled.     

The limits of objective assessment of medical practice

Medical work is increasingly being subjected to objective assessment as those who pay for it seek to grasp the quality of that work and how best to improve it. While objective measures have a role in the assessment of health care, I argue that this role is currently overestimated and that no human practice such as medicine can be fully comprehended by objective assessment. I suggest that the character of practices, in which formalizations are combined with judgment, requires that valid assessment involve the perspective of the skilled practitioner. Relying exclusively on objective measures in assessing health care will not only distort our assessments of it but lead to damage as the incentives of health care workers are directed away from the important aspects of their work that are not captured by objective measures.

The Effect of Work/Family Conflict on Intention to Quit: The Mediating Roles of Job and Life Satisfaction

Research has shown consistently that job satisfaction predicts turnover, but much less attention has been given to the how relationships between work and nonwork or how overall subjective evaluations of life (i.e., life satisfaction) affects turnover. We tested a model that included job satisfaction, life satisfaction, and conflict between work and nonwork domains of life as predictors of intent to quit. Results from a sample of Air Force personnel revealed that life satisfaction was a significant predictor of intent to quit after controlling for job satisfaction, and that both job and life satisfaction mediated the effects of role conflict between work and nonwork on intent to quit. We consider implications of these findings for both theory and practice. Portions of this paper were presented at the 9th Bi-Annual Conference of the International Society for the Study of Work and Organizational Values (ISSWOV). The views expressed in this paper are those of the authors and do not reflect the official policy or position of the United States Air Force, Department of Defense, or the US Government.     

Further Validation of a Need-based Quality-of-work-life (QWL) Measure: Evidence from Marketing Practitioners

This study further validates a need-based measure of quality of work life (QWL) developed by Sirgy et al. (Soc Indic Res 55:46–56, 2001). We conceptualized the QWL construct in terms of employee satisfaction with two sets of major needs: lower- and higher-order needs. Lower-order needs comprise health/safety needs and economic/family needs. Higher-order needs involve social needs, esteem needs, self-actualization needs, knowledge needs, and aesthetic needs. The results from a survey of marketing professionals largely supported the construct validity and predictive validity of the QWL measure. As expected, QWL has a positive influence on esprit de corps, job satisfaction, and organizational commitment among marketing managers. Managerial implications and directions for future research are also discussed.     

职业院校教师情感承诺与职业倦怠的关系：情感承诺的中介作用和职称的调节作用

通过整群取样法对全国14个省市36所职业院校共1237名专职或兼职专业教师进行测查,探讨心理契约履行对教师职业倦怠的影响作用机制,即情感承诺在其中的中介作用,以及职称对上述关系的调节效应。结果表明：（1）情感承诺在心理契约履行对职业倦怠的影响关系中起了部分中介作用;（2）教师职称对心理契约履行对职业倦怠的影响作用具有调节效果;使用总效应调节模型对情感承诺在心理契约履行对教师职业倦怠的中介效应及教师职称的调节作用进行综合性分析,发现教师职称主要在第一阶段,即心理契约履行对情感承诺的影响作用上调节效果显著。当教师的职称较低时,上述关系及效应也越强。     

The effects of college major and job field congruence on job satisfaction

This study investigated predictors of job satisfaction and builds on previous research on the effects of bachelor’s degree majors and job field congruence on job satisfaction. Data on workers’ job experiences in 2001 were matched to those workers’ college experiences across 30 institutions and background characteristics up to 25 years earlier. With statistical controls for demographic, socioeconomic, and academic characteristics, a final sample of 2515 college graduates was used to test hypotheses centered on the possibility that a causal order relates education and job satisfaction. Specifically, college degree majors, measures of both actual and perceived congruence, as well as income were examined in relation to three dimensions of job satisfaction. Results support hypotheses that income and congruence both mediate the effects of majors on job satisfaction, and identify that two different measures of congruence are causally related to intrinsic dimensions of job satisfaction.     

Bridging the gap between intentions and behavior: Implementation intentions, action control, and procrastination

In the context of Ajzen’s (1991) theory of planned behavior, the antecedents of intentions are better understood than the antecedents of behavior. The current study aimed to improve the understanding of the transition from intentions to behavior. Based on the work of Gollwitzer (1993), Kuhl and Beckmann (1994), and Lay (1986) we proposed a model of mediators (i.e., implementation intentions) and moderators (i.e., action-state orientation and trait procrastination) in the intention-behavior relation. The model was applied to job seeking, and tested using longitudinal survey data of a sample of unemployed individuals in The Netherlands (N = 175). Support was found for the proposed mediating role of implementation intentions in the relation between job search intention and job search behavior. The proposed moderating roles of action-state orientation and trait procrastination were not supported.     

工作要求-资源模型与工作倦怠的相互影响

采用间隔六个月的三波纵向设计,对国内263名企业员工的工作倦怠、工作要求、工作资源进行测量,探讨中国文化背景下企业员工工作环境的动态变化和倦怠体验的相互影响及其作用机制。研究结果表明,控制基线水平后,工作要求增量正向影响工作倦怠增量,工作资源增量负向影响工作倦怠增量;而工作倦怠增量进一步对员工所处的微工作环境产生一定的负面影响,导致工作要求进一步增加,工作资源进一步降低,因此易形成“工作环境恶化→工作倦怠加剧→工作环境进一步恶化”的恶性因果关系回路。     

The influence of future time perspective on work engagement and job performance: the role of job crafting

This two-wave study aimed to examine future time perspective (FTP) as an antecedent of job crafting, and in turn job crafting as a mediator in associations between FTP and work outcomes. Based on the lifespan socio-emotional selectivity theory, we expected that open-ended and limited FTP would evoke different forms of job crafting, which in turn would be associated with changes in work engagement and job performance. In line with our expectations, we found that employees whose open-ended FTP increased over a 1-year time period also crafted more job resources and challenging job demands such that their job provided them with more opportunities for knowledge acquisition, which in turn resulted in increased levels of work engagement and job performance. However, contrary to our expectations, employees whose limited FTP increased over the 1-year time period did not proactively reduce their hindering job demands. Hence, although crafting fewer hindering job demands was directly related to decreased levels of work outcomes as expected, we found no indirect effect of changes in limited FTP on changes in work engagement and performance via changes in this job crafting behaviour. These findings have important implications for the literature on job crafting and FTP.