Effects of noradrenergic activity on temporal information processing in humans

Temporal processing of durations in the range of seconds or more is mediated by working-memory mechanisms whereas processing of brief durations in the range of milliseconds appears to be beyond cognitive control and modulated by dopaminergic activity in the basal ganglia. In the present study, the effects of the selective noradrenaline reuptake inhibitor reboxetine on temporal information processing were evaluated. In a double-blind crossover design, either placebo or 2 or 4 mg of reboxetine were administered to 24 healthy male volunteers. Performance on temporal discrimination of longer durations, as indicated by 75%-difference thresholds in relation to a 1,000-ms standard interval, was significantly improved by 2 mg of reboxetine as compared to placebo, whereas the improvement observed with the 4-mg dose just failed to reach statistical significance. There was, however, no effect of reboxetine on temporal discrimination of extremely brief durations, as indicated by threshold values in relation to a 50-ms standard interval. Findings provided additional evidence for the notion that temporal processing of durations in the range of seconds is based on working-memory processes including aspects of directed attention. In timing of brief durations in the range of milliseconds, however, noradrenergic activity didnot seem to play a critical role.     

Challenging the Universality of Job Resources: Why,When, and For Whom Are They Beneficial?

In this paper we introduce the topic of job resources and elaborate on their relevance for research and practice in work psychology. We start out with a brief overview of the historic and current understanding of job resources. Next, we discuss the need for a more nuanced perspective on the effects of job resources and present some ideas on how to move this forward. After these conceptual preliminaries, we introduce the papers in the special issue and conclude with a brief summary of the special issue's key messages.     

Why employee psychopathy leads to counterproductive workplace behaviours : an analysis of the underlying mechanisms

ABSTRACT

The purpose of this study is to examine possible explanatory mechanisms linking employee secondary psychopathy to counterproductive workplace behaviour (CWB). Based on the emotion-centred model of voluntary work behaviour we argue that secondary psychopathy is characterized by unfavourable cognitive appraisal tendencies, which in turn positively relate to negative affectivity. We further assume that this cognitive-affective process enhances CWB. We also include primary psychopathy into our research model to test if the presumed mechanism applies to both psychopathy dimensions. We collected daily-survey data from 470 employees (1670 days) and analysed these data using multilevel structured equation modelling. We found strong support for the hypothesized serial mediation model, indicating that secondary psychopathy triggers dysfunctional cognitive-affective tendencies and consequently increases the likelihood of CWB. The proposed model did not hold up for primary psychopathy. Our study outlines the presence of distorted cognition-affective patterns in employee secondary psychopathy only. These patterns seem to play a key role in explaining the link between employee secondary psychopathy and deviant workplace behaviour. Based on this procedural knowledge relevant implications for theory and practice are provided.