The heterogeneity of transcranial direct current stimulation protocols and clinical profiles may explain variable results in modulating excitability in the motor cortex after stroke. However, the cortical electrical effects induced by different tDCS protocols remain unclear. Here, we aimed to compare rhythm changes in electroencephalography induced by three tDCS position protocols and the association between tDCS effects and clinical factors in stroke. Nineteen patients with chronic ischemic stroke underwent four experimental sessions with three tDCS protocols [anodal, cathodal, and bilateral ] (...) and a sham protocol, according to a single-blind randomized crossover design. Resting-state EEG was acquired before and after each protocol. First, a paired-sample t-test was used to examine the difference in spectral power between pre- and post-stimulation. Then, linear and quadratic regression models were used separately to describe the association between the clinical factors of stroke and changes in spectral power which was significantly different between pre- and post-tDCS. Finally, repeated measures analysis of variance with lesion hemisphere, stimulation protocol, and the location was performed to investigate the effects of tDCS over time. The induced effect of tDCS was mainly reflected in the alpha rhythms. The alpha power was increased by atDCS, especially low-alpha, in localized areas of the central and distant areas of the frontal and parietal lobes. Bi-tDCS also affected alpha power but in a smaller area that mainly focused on high-alpha rhythms. However, ctDCS and sham had no significant effects on any EEG rhythm. The clinical factors of time since stroke and motor impairment level were related to the change in high-alpha induced by atDCS and bi-tDCS following quadratic regression models. The above-mentioned modulation effect lasted for 20 min without attenuation. In conclusion, our findings provide evidence that the alpha rhythm of EEG is modulated differently by different tDCS protocols and that high alpha is affected by clinical characteristics such as post-stroke time and motor deficits, which is of great significance for understanding the modulation effect of different tDCS protocols on stroke and the guidance of protocols to promote motor recovery following stroke. (shrink)

Individuals with substance use disorders exhibit risk-taking behaviors, potentially leading to negative consequences and difficulty maintaining recovery. Non-invasive brain stimulation techniques such as transcranial direct current stimulation have yielded mixed effects on risk-taking among healthy controls. Given the importance of risk-taking behaviors among substance-using samples, this study aimed to examine the effects of tDCS on risk-taking among a sample of adults using cannabis. Using a double-blind design, 27 cannabis users [M age = 32.48, 41% female] were randomized, receiving one session (...) of active or sham tDCS over the bilateral dorsolateral prefrontal cortex. Stimulation parameters closely followed prior studies with anodal right dlPFC and cathodal left dlPFC stimulation. Risk-taking—assessed via a modified Cambridge Gambling Task—was measured before and during tDCS. Delay and probability discounting tasks were assessed before and after stimulation. No significant effects of stimulation on risk-taking behavior were found. However, participants chose the less risky option ∼86% of the trials before stimulation which potentially contributed to ceiling effects. These results contradict one prior study showing increased risk-taking among cannabis users following tDCS. There was a significant increase in delay discounting of a $1000 delayed reward during stimulation for the sham group only, but no significant effects for probability discounting. The current study adds to conflicting and inconclusive literature on tDCS and cognition among substance-using samples. In conclusion, results suggest the ineffectiveness of single session dlPFC tDCS using an established stimulation protocol on risk-taking, although ceiling effects at baseline may have also prevented behavior change following tDCS. (shrink)

Transcranial direct current stimulation (tDCS) has been recognized as a promising tool for investigating the causal relationship between specific brain areas of interest and behavior. However, the reproducibility of previous tDCS studies is often questioned because of failures in replication. This study focused on the effects of tDCS on one cognitive domain: beauty perception. To date, the modulation of beauty perception by tDCS has been shown in two studies:Cattaneo et al. (2014)andNakamura and Kawabata (2015). Here, we aimed at replicating their (...) studies and investigating the effects of tDCS on beauty perception using the following parameters: (1) cathodal stimulation over the medial prefrontal cortex (mPFC) (Nakamura and Kawabata, 2015); (2) anodal stimulation over the left dorsolateral prefrontal cortex (lDLPFC) (Cattaneo et al., 2014). We also performed a more focal stimulation targeting the orbitofrontal cortex (OFC) to determine the optimal stimulation site for modulating beauty perception (3). Participants rated the subjectively-perceived beauty of the images before and after the tDCS administration. We divided images into four clusters according to the obtained scores in our preliminary study and examined changes in beauty ratings in each image cluster separately to exclude factors, such as stimuli attributions that may reduce tDCS effects. The results showed no strong effects of tDCS with the same parameters as in previous studies on beauty rating scores in any image cluster. Likewise, anodal stimulation over the OFC did not result in a change in rating scores. In contrast to previous studies, the current study did not corroborate the effects of tDCS on beauty perception. Our findings provide evidence regarding the recent reproducibility issue of tDCS effects and suggest the possible inflation of its effects on cognitive domains. (shrink)

Many studies have discussed the neural basis of asset bubbles. They found that the dorsolateral prefrontal cortex (DLPFC) played an important role in bubble formation, but whether a causal relationship exists and the mechanism of the effect of the DLPFC on bubbles remains unsettled. Using transcranial direct current stimulation (tDCS), we modulated the activity of the DLPFC and investigated the causal relationship between the DLPFC and the asset bubble in the classical learning-to-forecast experiment. 126 subjects were randomly divided into three (...) groups and received different stimulations (left anodal/right cathodal, right anodal/left cathodal or sham stimulation) respectively. We also conducted a 2-back task before and after stimulation to measure changes in subjects’ cognitive abilities and explore in detail the cognitive mechanism of the effect of DLPFC stimulation on asset bubbles. Based on our results, we found that the bubble of the left anodal/right cathodal stimulation group was significantly smaller than that of the sham stimulation group. In the meantime, subjects performed significantly better in the 2-back task after left anodal/right cathodal stimulation but not right anodal/left cathodal or sham stimulation, which is consistent with their performance in the learning-to-forecast experiment, supporting the cognitive mechanism to some extent. Furthermore, we examined different forecasting rules across individuals and discovered that the left anodal/right cathodal stimulation group preferred the adaptive learning rule, while the sham and right anodal/left cathodal stimulation groups adopted a pure trend-following rule that tended to intensify market volatility aggressively. (shrink)

Combined non-invasive brain stimulation (NIBS) and rehabilitation interventions have the potential to improve function in children with unilateral cerebral palsy (UCP), however their effects on developing brain function are not well understood. In a proof-of-principle study, we used single-pulse transcranial magnetic stimulation (TMS) to measure changes in corticospinal excitability and relationships to motor performance following a randomized controlled trial consisting of 10 days of combined constraint-induced movement therapy (CIMT) and cathodal transcranial direct current stimulation (tDCS) applied to the contralesional motor (...) cortex. Twenty children and young adults (mean age = 12 years, 9 months, range = 7 years, 7 months, 21 years, 7 months) with UCP participated. TMS testing was performed before, after, and 6 months after the intervention to measure motor evoked potential (MEP) amplitude and cortical silent period (CSP) duration. The association between neurophysiologic and motor outcomes and differences in excitability between hemispheres were examined. Contralesional MEP amplitude decreased as hypothesized in five of five participants receiving active tDCS immediately after and 6 months after the intervention, however no statistically significant differences between intervention groups were noted for MEP amplitude [mean difference = −323.9 μV, 95% CI = (−989, 341), p = 0.34] or CSP duration [mean difference = 3.9 ms, 95% CI = (−7.7, 15.5), p = 0.51]. Changes in corticospinal excitability were not statistically associated with improvements in hand function after the intervention. Across all participants, MEP amplitudes measured in the more-affected hand from both contralesional (mean difference = −474.5 μV) and ipsilesional hemispheres (−624.5 μV) were smaller compared to the less-affected hand. Assessing neurophysiologic changes after tDCS in children with UCP provides an understanding of long-term effects on brain excitability to help determine its potential as a therapeutic intervention. Additional investigation into the neurophysiologic effects of tDCS in larger samples of children with UCP are needed to confirm these findings. (shrink)

The following investigation illustrates, by concrete historical examples, some of the basic results, outlined in earlier papers on theory evolution and reference dynamics in science (cf. Balzer, W. et al.: 1989, 'A Static Theory of Reference in Science', Synthese 79, 319-360; Lauth, B.: 1989, 'Reference Problems in Stoichiometry', Erkenntnis 30, 339-362; Lauth, B.: 1990, 'Theory Evolution and Reference Kinematics', Synthese 88, 279-307). All theories considered in this paper are represented within a metatheoretical frame that has become known as the structuralist (...) view in the philosophy of science. The paper focusses on some physical constants, namely the mass and charge of electrons, henceforth denoted by m₀ and e₀, of Boltzmann's constant k, Faraday's constant F and Avogadro's Number ${\rm N}_{{\rm A}}$ , and the evolution of their 'reference spectra' from the beginning of the 19th century until the early days of quantum physics. (shrink)

A system is classified as multimodal if its language has more than one modal operator as primitive, and such operators are not interdefinable. We extend the anodic and cathodic modal systems, introduced in Bueno-Soler and Bueno-Soler , to a class of the so-called basilar multimodal systems generating, in this way, the classes of anodic and cathodic multimodal logics. The cathodic multimodal systems are defined as extensions of positive multimodal systems by adding degrees of negation plus consistency operators. In this way, (...) cathodic multimodal systems are logics of formal inconsistency [the paraconsistent LFIs, as treated in Carnielli et al. ] enriched with multimodal operators. We focus the attention on models for such classes of systems and discuss how modal possible-translation semantics, as well as possible-worlds , can be defined to interpret basilar cathodic multimodal systems. While anodic systems are modeled by Kripke models only, we introduce the modal possible-translation models for cathodic systems. Such models, given by combinations of three-valued modal logics, besides their own interest, explain the role of non-trivializing contradictions in multimodal environment. (shrink)

Despite the general expectation that ethical leadership fosters employees’ ethical behaviors, surprisingly little empirical effort has been made to verify this expected effect of ethical leadership. To address this research gap, we examine the role of ethical leadership in relation to a direct ethical outcome of employees: moral voice. Focusing on how and when ethical leadership motivates employees to speak up about ethical issues, we propose that moral efficacy serves as a psychological mechanism underlying the relationship, and that leader–follower (...) value congruence serves as a boundary condition for the effect of ethical leadership on moral efficacy. We tested the proposed relationships with matched reports from 154 Korean white-collar employees and their immediate supervisors, collected at two different points in time. The results revealed that ethical leadership was positively related to moral voice, and moral efficacy mediated the relationship. Importantly, as the relationship between ethical leadership and moral efficacy depended on leader–follower value congruence, the mediated relationship was effective only under high leader–follower value congruence. Theoretical and practical implications are discussed. (shrink)

Several leadership and ethics scholars suggest that the transformational leadership process is predicated on a divergent set of ethical values compared to transactional leadership. Theoretical accounts declare that deontological ethics should be associated with transformational leadership while transactional leadership is likely related to teleological ethics. However, very little empirical research supports these claims. Furthermore, despite calls for increasing attention as to how leaders influence their followers’ perceptions of the importance of ethics and corporate social responsibility (CSR) for organizational effectiveness, no (...) empirical study to date has assessed the comparative impact of transformational and transactional leadership styles on follower CSR attitudes. Data from 122 organizational leaders and 458 of their followers indicated that leader deontological ethical values (altruism, universal rights, Kantian principles, etc.) were strongly associated with follower ratings of transformational leadership, while leader teleological ethical values (utilitarianism) were related to follower ratings of transactional leadership. As predicted, only transformational leadership was associated with follower beliefs in the stakeholder view of CSR. Implications for the study and practice of ethical leadership, future research directions, and management education are discussed. (shrink)

The literatures on both authentic leadership and behavioral integrity have argued that leader integrity drives follower performance. Yet, despite overlap in conceptualization and mechanisms, no research has investigated how authentic leadership and behavioral integrity relate to one another in driving follower performance. In this study, we propose and test the notion that authentic leadership behavior is an antecedent to perceptions of leader behavioral integrity, which in turn affects follower affective organizational commitment and follower work role performance. (...) Analysis of a survey of 49 teams in the service industry supports the proposition that authentic leadership is related to follower affective organizational commitment, fully mediated through leader behavioral integrity. Next, we found that authentic leadership and leader behavioral integrity are related to follower work role performance, fully mediated through follower affective organizational commitment. These relationships hold when controlling for ethical organizational culture. (shrink)

Servant leadership has been theorized as a model where the moral virtue of humility co-exists with action-driven behavior. This article provides an empirical study that tests how these two apparently paradoxical aspects of servant leadership interact in generating follower engagement, while considering the hierarchical power of the leader as a contingency variable. Through a three-way moderation model, a study was conducted based on a sample of 232 people working in a diverse range of companies. The first finding is that (...) humble leaders showed the highest impact on follower engagement regardless of their hierarchical position. Less humble leaders in lower hierarchical positions seem to be able to compensate for that through a strong action-oriented leadership style. Most notably for leaders in high hierarchical positions, the moral virtue of humility seems to strengthen the impact of their action-oriented leadership the most. These findings provide empirical support and a better understanding of the interplay between the moral virtue of humility and the action-oriented behaviors of servant leadership. (shrink)

Servant leadership has been theorized as a model where the moral virtue of humility co-exists with action-driven behavior. This article provides an empirical study that tests how these two apparently paradoxical aspects of servant leadership interact in generating follower engagement, while considering the hierarchical power of the leader as a contingency variable. Through a three-way moderation model, a study was conducted based on a sample of 232 people working in a diverse range of companies. The first finding is that (...) humble leaders showed the highest impact on follower engagement regardless of their hierarchical position. Less humble leaders in lower hierarchical positions seem to be able to compensate for that through a strong action-oriented leadership style. Most notably for leaders in high hierarchical positions, the moral virtue of humility seems to strengthen the impact of their action-oriented leadership the most. These findings provide empirical support and a better understanding of the interplay between the moral virtue of humility and the action-oriented behaviors of servant leadership. (shrink)

Recognizing gaps in our present understanding of leader apologies, this investigation examines how followers appraise leader apologies and how these perceptions impact work-related outcomes. Results indicate that followers who viewed their leader as trustworthy or caring before a leader wrongdoing were more likely to perceive their leader’s apology to be sincere, as compared to followers who previously doubted their leader’s trustworthiness and caring. Attributions of apology sincerity affected follower reactions, with followers perceiving sincere apologies reporting greater trust in leadership, (...) satisfaction with supervision, leader–member exchange quality, affective organizational commitment, and forgiveness than those reporting insincere or no apologies. A mediation model was supported, showing that attributions of apology sincerity fostered perceptions of humility, which enhanced perceptions of transformational leadership, and consequently garnered more positive follower reactions. (shrink)

ABSTRACT:Although prior work has shown that employees with ethical leaders are less likely to engage in deviant or unethical behaviors, it is unknown whetherallemployees respond this way or to the same extent. Drawing on social learning theory as a conceptual framework, this study develops and tests hypotheses suggesting that two follower characteristics—conscientiousness and core self-evaluation—moderate the negative relationship between ethical leadership and workplace incivility. Data from employees of a U.S. public school district supported our predictions. Implications and future research (...) directions are discussed. (shrink)

This paper investigates the concept of behavioral integrity from three important foci in organizational settings: i.e., leader, organization, and follower. Drawing from theories of behavioral integrity, social learning, and social identity, we examine the effects of leader and organizational behavioral integrity on follower behavioral integrity and organizational citizenship behavior via follower identification with leader and with organization, respectively. To test our hypotheses, we used data from three studies. Studies 1 and 2 were online experiments in which behavioral (...) integrity was manipulated in written scenarios to explore the proposed causal relationships. Study 3 was a multisource field study that tested a mediation model using matched data collected from 280 employees and their co-workers from a Fire and Rescue Service in the United Kingdom. The findings provide partial support for our hypothesized model and highlight the importance of examining multiple foci of behavioral integrity as well as the role of follower identification as key mediating mechanisms of the relationship between leader and organizational behavioral integrity and follower behavioral outcomes. Theoretical and practical implications are discussed. (shrink)

The study's goal was to examine the socially responsible power use in the context of ethical leadership as an explanatory mechanism of the ethical leadership-follower outcomes link. Drawing on the attachment theory (Bowlby, 1969/1982 ), we explored a power-based process model, which assumes that a leader's personal power is an intervening variable in the relationship between ethical leadership and follower outcomes, while incorporating the moderating role of followers' moral identity in this transformation process. The results of a two-wave (...) field study ( N = 235) that surveyed employees and a scenario experiment ( N = 169) fully supported the proposed (moderated) mediation models, as personal power mediated the positive relationship between ethical leadership and a broad range of tested follower outcomes (i.e., leader effectiveness, follower extra effort, organizational commitment, job satisfaction, and work engagement), as well as the interactive effects of ethical leadership and follower moral identity on these follower outcomes. Theoretical and practical implications are discussed. (shrink)

We develop and test a process model demonstrating how leader charisma and constructive and destructive forms of narcissism interact to influence follower psychological empowerment and moral identity, using survey data from 667 direct reports of leaders from 13 different industries. Study results revealed that leader narcissism moderates the relationship between leader charisma and follower psychological empowerment such that when leaders possess a more constructive and less destructive narcissistic personality, their charisma has a stronger positive relationship with follower (...) psychological empowerment. Study results also revealed that follower psychological empowerment mediates the differential interactive effects of leader charisma and constructive and destructive narcissism on follower moral identity. Implications of these results for future theory development, research, and practice are discussed. (shrink)

To further the debate on the ethical dimension of transformational leadership from a virtue ethics perspective, this study focused on leaders’ in-group orientation as well as their in-group versus out-group orientation in situations of conflict between organizational interests and broader ethical values. More precisely, the current study captured leaders’ organizational identification as well as their willingness to engage in unethical pro-organizational behavior and tested the relations between these attitudes and follower-perceived TFL behavior. In total, the leadership behaviors of 112 (...) middle- and top-level managers were evaluated by 900 direct-reports. Results showed leaders’ organizational identification to be positively related to TFL. However, we found no relation between leaders’ willingness to engage in unethical pro-organizational behavior and TFL. Implications regarding the ethical dimension of TFL are discussed. (shrink)

Previous research has shown that leaders’ narcissistic rivalry is positively associated with abusive supervision. However, it remains unclear when and how leaders high in narcissistic rivalry show abusive supervision. Building on trait activation theory and the Narcissistic Admiration and Rivalry Concept (NARC), we assumed that leaders high in narcissistic rivalry particularly show abusive supervision in reaction to follower workplace deviance due to their tendency to devaluate others. We argued that leaders’ injury initiation motives explain why leaders high in narcissistic (...) rivalry react with abusive supervision when experiencing organization-directed or supervisor-directed deviance. However, this should not be the case for coworker-directed deviance, as leaders high in narcissistic rivalry are less likely to find such behavior violates their internal norms. We conducted two studies. In the first study, we provided participants with experimental vignettes of follower workplace deviance. In the second study, we used a mixed-methods approach and investigated leaders’ autobiographical recollections of follower workplace deviance. We found a positive direct effect of leaders’ narcissistic rivalry across both studies. Leaders high in narcissistic rivalry showed abusive supervision (intentions) in response to organization-directed deviance (Studies 1 and 2) or supervisor-directed deviance (Study 1), but not in response to coworker-directed deviance (Studies 1 and 2). Leaders’ injury initiation motives could in part explain this effect. We discuss findings in light of the NARC and devaluation of others and derive implications for theory and practice. (shrink)

Drawing on social exchange theory, the present study seeks to understand how ethical leaders channel followers’ responses to positive treatment from the organization into a dutiful mindset, resulting in in-role and extra-role performance. Specifically, it examines the influence of perceived organizational support on both followers’ job performance and organizational citizenship behaviors, and the mediating effects of duty orientation on such relationships. In addition, it examines whether the mediated effects are contingent on the ethical leadership exhibited by the team leader. Based (...) on multi-source, multi-level data obtained from 233 employees in 60 teams from the Chinese public sector, we found that ethical leadership moderated the mediated relationship between perceived organizational support and follower work behaviors through duty orientation, such that this relationship was stronger in the presence of higher ethical leadership. (shrink)

There has been limited research investigating the effects of the recognition form of respect between leaders and their followers within the organisation literature. We investigated whether mutual recognition respect was associated with follower job performance and well-being after controlling for measures of liking and appraisal respect. Based on data we collected from 203 matched leader–follower dyads in the Insurance industry in Malaysia, we found mutual recognition respect predicted both follower job performance and well-being. Significantly, appraisal respect was (...) only found to be positively associated with job performance. Our findings suggest mutual recognition respect is an important form of respect in workplace relationships that can bring benefits to both the individual and the organisation. (shrink)

I reappraise in detail Hertz's cathode ray experiments. I show that, contrary to Buchwald 's evaluation, the core experiment establishing the electrostatic properties of the rays was successfully replicated by Perrin and Thomson. Buchwald 's discussion of 'current purification' is shown to be a red herring. My investigation of the origin of Buchwald 's misinterpretation of this episode reveals that he was led astray by a focus on what Hertz 'could do'-his experimental resources. I argue that one should focus (...) instead on what Hertz wanted to achieve-his experimental goals. Focusing on these goals, I find that his explicit and implicit requirements for a successful investigation of the rays' properties are met by Perrin and Thomson. Thus, even by Hertz's standards, they did indeed replicate his experiment. (shrink)

Ideals (or ideal values) help people to navigate in social life. They indicate at a very fundamental level what people are concerned about, what they strive for, and what they want to be affiliated with. Transferring this to a leader-follower analysis, our first study (n = 306) confirms that followers' identification and satisfaction with their leaders are stronger, the more leaders match followers' ideal leader values. Study 2 (n = 244) extends the perspective by introducing the novel concept of (...) counterideals (i. e., how an ideal leader should not be) as a second, non-redundant point of reference. Results confirm that a leader's match on ideal and on counter-ideal values have independent effects in that both explain unique variance in followers' identification and satisfaction with their leader. Study 3 (n = 136) replicates the previous results in an experimental scenario study and provides evidence for the proposed causal direction of the underlying process. We conclude that counter-ideal values might be an additional point of reference that people use to triangulate targets above and beyond ideal values and discuss the implications of our findings for value research and management. (shrink)

Several alternative leadership approaches have been introduced to supplement the long-standing transformational leadership model as concerns have grown that it did not place enough emphasis on leader ethics. Nonetheless, to establish the value of the newer approaches, evidence of conceptual and empirical distinctiveness is required. Though meta-analysis has been somewhat helpful in this regard :517–536, 2016), we conducted two within-study comparisons of ethical leadership, virtuous leadership and key components of TL reflected by socialized charismatic leadership. We predicted that these alternative (...) models differ in the strength of their ties to a range of valued outcomes. Our analyses of 230 leader–follower dyads based predominately in North America and US-based 131 dyads left many hypotheses unsupported; nonetheless, there was evidence of differential associations. For example, across both samples, in the context of all three models, follower-rated ethical leadership was the only significant predictor of follower-rated leader effectiveness, leader-rated subordinate in-role performance, and leader-rated follower ethicality. As hypothesized, virtuous leadership was the strongest predictor of self-rated leader happiness in Sample 1, but contrary to expectations, in Sample 2, only the TL components were related to happiness and life satisfaction among both leaders and followers. (shrink)

Ideals (or ideal values) help people to navigate in social life. They indicate at a very fundamental level what people are concerned about, what they strive for, and what they want to be affiliated with. Transferring this to a leader–follower analysis, our first study (n = 306) confirms that followers’ identification and satisfaction with their leaders are stronger, the more leaders match followers’ ideal leader values. Study 2 (n = 244) extends the perspective by introducing the novel concept of (...) counter-ideals (i.e., how an ideal leader should not be) as a second, non-redundant point of reference. Results confirm that a leader’s match on ideal and on counter-ideal values have independent effects in that both explain unique variance in followers’ identification and satisfaction with their leader. Study 3 (n = 136) replicates the previous results in an experimental scenario study and provides evidence for the proposed causal direction of the underlying process. We conclude that counter-ideal values might be an additional point of reference that people use to triangulate targets above and beyond ideal values and discuss the implications of our findings for value research and management. (shrink)

The purpose of this study is to understand how leader humility effectively stimulates follower creativity in the workplace during the coronavirus disease 2019 scenario. Relying on social cognitive and social information processing theories, this study investigates how leader humility cultivates follower self-efficacy and follower creativity. Furthermore, it explores an intervening mechanism of follower self-efficacy and examines a moderating role of leader proactive personality. The hypothesized model is empirically tested by collecting the data from 405 employees and (...) 87 managers working in the banking sector of Pakistan. The results indicate that leader humility is positively related to follower self-efficacy and follower creativity, which improve the organization’s innovation climate and an environment for social sustainability. Follower self-efficacy is also significantly related to follower creativity. The mediation analysis shows that follower self-efficacy mediates the relationship between leader humility and follower creativity. Additionally, leader proactive personality moderates the relation between follower self-efficacy and follower creativity. This study highlights the importance of leader humility for creativity and extends the literature by explaining the role of self-efficacy. Furthermore, the findings may assist the policymakers in how a humble leader heightens employee creativity and social sustainability in COVID-19. (shrink)

Recent instances of corporate misconduct and examples of blatant leader self-serving behavior have rekindled interest in leader personality traits as antecedents of negative leader behavior. The current research builds upon that work, and examines the relationship between leader psychopathy and leader self-serving behavior. Moreover, we investigate whether follower self-esteem affects the occurrence of self-serving behavior in leaders with psychopathic tendencies. We predict that self-serving behaviors by psychopathic leaders are more likely to occur in the interaction with followers low in (...) self-esteem. We first conducted an experimental study (N = 156), in which we manipulated follower self-esteem, measured leader psychopathy, and assessed their combined effect on leader self-serving behavior using an ultimatum game. We then conducted a multi-source field study (N = 124 leader-follower dyads) using questionnaires to assess leader psychopathy, follower self-esteem, and perceived leader self-serving behavior. Across both studies, we found that leader psychopathy was positively related to their self-serving behavior, but only when followers had low rather than high self-esteem. As expected, our studies showed that the degree to which (perceived) psychopathic traits of leaders are reflected in their behavior depends on the characteristics of their followers. Apparently, the behavioral expression of negative leader traits is not only a matter of the trait strength, but instead is the result of the interplay between leader and follower in a certain context. (shrink)

There is a growing interest in understanding how follower reactions towards abusive leadership are shaped by followers’ perceptions and attributions. Our studies add to the understanding of the process happening between different levels of leaders’ abusive behavior (from constructive leadership as control, laissez-faire, mild to strong abusive) and follower reactions. Specifically, we focus on the role of perception of abusive supervision as a mediator and attribution as a moderator of the relationship between leader abusive behavior and follower (...) reactions. Follower reactions are defined in terms of exit, voice, loyalty, and neglect. Two studies using a two point experimental design and vignettes and a cross-sectional field study were conducted. Perception partly mediates the relationship between leader behavior and reactions (Study 1 and 2). Different attributions (intention, control) moderate the relationship between the perception of abusive supervision and reactions in Study 2 and 3. In Study 2, attribution of intentionality of the leader behavior served as a moderator of the relationship between abusive supervision and loyalty, turnover, and voice. Attribution of intentionality reduced the relationship between perception of abusive supervision and reactions. Attribution of intentionality only strengthened negative reactions when milder abusive leadership was perceived. These results were not supported in Study 3. However, in Study 3, attribution to the supervisor’ control served as moderator for loyalty and voice. A stronger relationship between the perception of abusive supervision and reactions emerged for high versus for low attribution to the supervisor. The differences in results between the studies reflect that in Study 1 and 2 abusive behavior was manipulated and in Study 3 the perception of abusive supervision of actual leaders was assessed. Our findings show that avoidance of abusive supervision should be taken seriously and followers’ perception and suffering is not only due to subjective judgment but reflects actual differences in behavior. The relationships are stronger in the field study, because, in practice, abusive behaviors might be more ambiguous. The research presented here can help leaders to better understand their own and the followers’ role in the perception of and reaction to abusive supervision. (shrink)

_Following Putnam’s Trail_ addresses Putnam’s path through important philosophical problems. One outstanding feature of Putnam’s philosophy has been his contribution to the development of American pragmatism as well as his many changes of mind when thinking about realism. Realism and pragmatism are indeed the central focus of the contributions to the volume. The book includes a defence of pragmatism by Putnam himself, and several commentaries on it. This volume should be of interest both to scholars who specialize in analytical philosophy (...) as well as to those who have a wider interest in philosophy. (shrink)

Scholars have suggested that leaders’ ethical failures at the beginning of the twenty-first century have raised awareness about the importance of ethical leadership (EL). Yet, there has been no systematic effort to evaluate whether this awareness indeed led to changes in EL or how followers react to this leadership style over time. To address this gap, we examine the evolution in EL means, variability, and its associations with follower outcomes between 2004 and 2019. Our cross-temporal meta-analysis included 359 independent (...) samples from 314 studies published between 2005 and 2020 and focused on followers’ ratings of their leaders using the Ethical Leadership Scale (ELS; Brown et al., in Organizational Behavior and Human Decision Processes, 97(2), 117–134, 2005). Using cubic spline meta-regressions, our results indicated no global changes in EL mean levels and variability across the 15-year period. Nevertheless, country-level comparisons revealed different EL-trends in China (i.e. decrease) versus the United States (i.e. stable), and further moderation analyses highlighted the role of cultural value dimensions and national corruption rates. Finally, we also found that the relationship between EL and desirable follower outcomes (e.g. organizational citizenship behavior) became gradually stronger over time on a global level. These results provide a solid empirical basis to evaluate cross-temporal trends in EL and its (changing) impact on follower outcomes across the globe. (shrink)

‘Rule-following’ is a name for a cluster of phenomena where we seem both guided and “normatively” constrained by something general in performing particular actions. Understanding the phenomenon is important because of its connection to meaning, representation, and content. This article gives an overview of the philosophical discussion of rule-following with emphasis on Kripke’s skeptical paradox and recent work on possible solutions. Part I of this two-part contribution is devoted to the basic issues from Wittgenstein to Kripke. Part II will be (...) about recent answers to the skeptical paradox and Boghossian’s and Wright’s new puzzles. (shrink)

A 10 kHz pulsed X-ray generator utilising a hot-cathode triode in conjunction with a new type of grid control device for controlling X-ray duration is described. The energy-storage condenser was charged up to 70 kV by a power supply, and the electric charges in the condenser were discharged to the X-ray tube repetitively by the grid control device. The maximum values of the grid voltage, the tube voltage, and the tube current were −1.5 kV, 70 kV, and 0.4 A, (...) respectively. The duration of the flash X-ray pulse was primarily determined by the time constant of the grid control device and the cut-off voltage of thermoelectrons. The X-ray duration was controlled within a region of less than 1 ms; the X-ray intensity with a pulse width of 0.27 ms, a charged voltage of 70 kV, and a peak tube current of 0.4 A was 0.92 μC kg −1 at 0.5 m per pulse. The maximum repetition rate was about 10 kHz, and the size of the focal spot was about 3.5×3.5 mm. (shrink)

The authors examined the effects of ethical leadership on follower organizational citizenship behavior (OCB) and deviant behavior. Drawing upon research related to the behavioral plasticity hypothesis, the authors examined a moderating role of follower self-esteem in these relationships. Results from a field study revealed that ethical leadership is positively related to follower OCB and negatively related to deviance. We found that these relationships are moderated by followers' self-esteem, such that the relationships between ethical leadership and OCB as (...) well as between ethical leadership and deviant behavior are weaker when followers' self-esteem is high than low. Implications of these findings for research and practice are discussed. (shrink)

Rule-following has become a focus of philosophical interest since Kripke’s interpretation of Wittgenstein’s Philosophical Investigations. The case which Kripke makes is an argument against reducing the description of the beliefs of a person to a description in naturalistic terms. However, it has also implications for the metaphysics of mind. I claim that, contrary to what one might except, Kripke’s case contains an argument in favour of materialism in ontology.

AbstractIn the wake of organizational scandals associated with corporate America servant as well as transformational leadership are seen as approaches capable of engendering a type of morality—on the part of leaders and followers—based on shared values, universal moral principles and an orientation towards a pro-social behavior serving the common good. However, recent critiques have highlighted the tendency in the relevant literature to overlook the systemic context within which leadership and followership are situated. Given this oversight this paper re-visits a classic (...) piece of ethnography on corporate America: Robert Jackal’s Moral Mazes. Employing concepts from critical realism fused with insights from studies on management and bureaucracy we analyse the key themes from the book pertaining to the nature of the leader–follower dynamic in shareholder capitalism. The analysis highlights the role of bureaucracy and corporate ideology as key elements shaping leader–follower relationships, encouraging a type of morality associated with guarding self-interest whilst undermining relationality. The influence of the structural and cultural context in which leader–follower relations unfold draws attention to morality as relationally contingent as opposed to an ideal state. (shrink)

Although the dominant view in the literature suggests that work-related anxiety experienced by employees affects their behavior and performance, little research has focused on how and when leaders’ workplace anxiety affects their followers’ job performance. Drawing from Emotions as Social Information theory, we propose dual mechanisms of cognitive interference and emotional exhaustion to explain the relationship between leader workplace anxiety and subordinate job performance. Specifically, cognitive interference is the mechanism that best explains the link between leader workplace anxiety and (...) class='Hi'>follower task performance, while emotional exhaustion is the mechanism that best explains the link between leader workplace anxiety and follower contextual performance. Additionally, we examine how follower epistemic motivation serves as a boundary condition for the effect of leader anxiety on follower performance outcomes. Results from a 2-wave study of 228 leader-follower dyads in a high-tech company mostly supported our theoretical model. We conclude the study with a discussion of the theoretical and practical implications of our findings. (shrink)

Background and PurposeTranscranial direct current stimulation is an emerging non-invasive neuromodulation technique for focal epilepsy. Because epilepsy is a disease affecting the brain network, our study was aimed to evaluate and predict the treatment outcome of cathodal tDCS by analyzing the ctDCS-induced functional network alterations.MethodsEither the active 5-day, −1.0 mA, 20-min ctDCS or sham ctDCS targeting at the most active interictal epileptiform discharge regions was applied to 27 subjects suffering from focal epilepsy. The functional networks before and after ctDCS were (...) compared employing graph theoretical analysis based on the functional magnetic resonance imaging data. A support vector machine prediction model was built to predict the treatment outcome of ctDCS using the graph theoretical measures as markers.ResultsOur results revealed that the mean clustering coefficient and the global efficiency decreased significantly, as well as the characteristic path length and the mean shortest path length at the stimulation sites in the fMRI functional networks increased significantly after ctDCS only for the patients with response to the active ctDCS. Our prediction model achieved the mean prediction accuracy of 68.3% after the nested cross validation. The mean area under the receiver operating curve was 0.75, which showed good prediction performance.ConclusionThe study demonstrated that the response to ctDCS was related to the topological alterations in the functional networks of epilepsy patients detected by fMRI. The graph theoretical measures were promising for clinical prediction of ctDCS treatment outcome. (shrink)

This is a short, and therefore necessarily very incomplete discussion of one of the great questions of modern philosophy. I return to a station at which an interpretative train of thought of mine came to a halt in a paper written almost 20 years ago, about Wittgenstein and Chomsky,[1] hoping to advance a little bit further down the track. The rule-following passages in the Investigations and Remarks on the Foundations of Mathematics in fact raise a number of distinct issues about (...) rules, meaning, objectivity, and reasons, whose conflation is encouraged by the standard caption, "the Rule-following Considerations".[2] So, let me begin by explaining my focus here. (shrink)

Despite the proliferation of research on ethical leadership, there remains a limited understanding of how specifically the assumingly moral component of this leadership style affects employee behavior. Taking an identity perspective, we integrate the ethical leadership literature with research on the dynamics of the moral self-concept to posit that ethical leadership will foster a sense of moral identity among employees, which then inspires followers to adopt more ethical actions, such as increased organization citizenship behavior. We further argue that these identity (...) effects should be more pronounced when leaders are perceived to be group prototypical, as their actions then speak louder to followers’ sense of identity. Two studies—a scenario experiment with 138 participants and a field study with 225 employees—provided support for our hypothesized moderated mediation model. Perceived ethical leadership positively affected OCB via followers’ moral identity but only under conditions of high perceived leader group prototypicality. We discuss how the identity pathway of ethical leadership can facilitate novel theorizing about moral transference. Our findings also suggest that, when hiring external ethical leaders or training internal managers, practitioners are well advised to consider that these individuals may only be effective in morally transforming followers when they are perceived as prototypical for the group. (shrink)

There is usually great concern over the use of psychiatric patients for clinical research, as it raises the ethical and legal issues of human dignity and autonomy. In this paper the authors describe and evaluate a follow-up neurobiological study of patients who had been discharged from a psychiatric research ward at least ten months earlier. It is pointed out that such studies are rare and that the writers were provided with the unique opportunity to examine attitudinal and motivational dimensions involved (...) in the patients' agreement to participate in the study. (shrink)

Famously, Kripke has argued that the central portion of the Philosophical Investigations describes both a skeptical paradox and its skeptical solution. Solving the paradox involves the element of the community, which determines correctness conditions for rule-following behavior. What do such conditions precisely consist of? Is it accurate to say that there is no fact to the matter of rule following? How are the correctness conditions sustained in the community? My answers to these questions revolve around the idea that a rule (...) is followed insofar as a convention is in place. In particular, I consider the game-theoretic definition of convention offered by David Lewis and I show that it illuminates essential aspects of the communitarian understanding of rule-following. Make the following experiment: say “It’s cold here” and mean “It’s warm here”. Can you do it?Ludwig Wittgenstein, Philosophical Investigations, 1953, §510.I can’t say “it’s cold here” and mean “it’s warm here”—at least, not without a little help from my friends.David Lewis, Convention. (shrink)