The Demand–Control model and target's reports of bullying at work: A test within Spanish and Belgian blue-collar workers

The present study explores whether Karasek's Job Demand–Control (JDC) model's strain hypothesis can be applied to target's reports of bullying at work in matched samples of Spanish and Belgian blue-collar workers. In the Spanish sample, results reveal a positive main effect of workload and a negative main effect of autonomy. The relationship between workload and bullying is particularly strong under the condition of low autonomy (i.e., interaction), in line with Karasek's strain hypothesis. In the Belgian sample, results show a positive main effect of workload and a significant workload–autonomy interaction effect in accordance with the strain hypothesis. In sum, high strain jobs associate with target's reports of bullying in both the Spanish and Belgian sample. Karasek's JDC model may accordingly be extended to target's reports of bullying as a form of social behavioural strain. These findings furthermore enhance research in the realm of bullying at work by introducing a well-established theoretical framework to account for the relationship between workload, autonomy, and target's reports of bullying.     

Family business: A fertile ground for research on time,teams and positive organizational study

Further reflecting on the study of organizational behaviour (OB) in family business (FB), this rejoinder piece discusses and integrates the points raised in the three thoughtful commentaries and our original article. We start by highlighting the general agreement between us and the commentators on three points: (1) that family firms are theoretically distinct from non-family firms due to significant involvement of kinship ties in the enterprise; (2) there is paucity of research at the interface of OB and FB and (3) there is an abundance of interesting research questions at this interface with the potential to benefit both domains of study. Next, we discuss and elaborate on the research possibilities on time, teams and positive organizational study, suggested by the commentators. An illustrative list of interesting research questions at the OB–FB interface that extend and enrich our agenda for future research is shared. We conclude that not only is FB a promising context for behavioural scholars to investigate, the timing is perfect for such investigations.     

Inhibitory sensory preconditioning.

In two experiments rats were preexposed to neutral stimuli. Both experiments used a between-subjects design in which a paired group was preexposed to intermixed presentations of A --> Band AX, and an unpaired control group was preexposed to intermixed presentations of A, B, and AX. After the conditioning of B, in Experiment 1, conditioned responding to X was acquired more slowly in the paired than in the unpaired group. Furthermore, in Experiment 2, X reduced conditioned responding to a separately trained excitor in a summation test but only in the paired group. Together, these results provide evidence of an inhibitory form of sensory preconditioning.     

Autoestima en adolescentes. Estudios sobre su estabilidad y sus determinantes

Resumen

En el marco teórico de un concepto de la autoestima como conjunto global de esquemas evaluativos que el sujeto tiene acerca de sí mismo, se han investigado diferentes relaciones, causales y de asociación, entre la autoestima y otras variables. La investigación se ha desarrollado en trece estudios distintos, con sendos grupos de sujetos adolescentes, en cinco diseños diferentes, unos correlaciónales y otros de naturaleza cuasi-experimental. Principalmente en estos últimos ha aparecido que la autoestima es dependiente de ciertos acontecimientos significativos introducidos o controlados por el investigador. Pese a ello, sin embargo, la autoestima se ha mostrado como relativamente estable a través del tiempo, a la vez que internamente consistente, habiéndose hallado correlaciones significativas entre las mediciones de la misma con distintos instrumentos y en distintos momentos.     

Internal consistency and construct validity of two versions of the Revised Vividness of Visual Imagery Questionnaire

The Vividness of Visual Imagery Questionnaire (VVIQ; Marks, 1973) is the questionnaire most extensively used to measure imagery vividness, but two newer versions have been developed. In this study, the reliability and construct validity of these two measures were assessed: the Vividness of Visual Imagery Questionnaire-2 (VVIQ-2) and the Vividness of Visual Imagery Questionnaire-Revised Version (VVIQ-RV). A total of 206 undergraduate psychology students completed both questionnaires, and to assess construct validity, they also completed the Object-Spatial Imagery and Verbal Questionnaire (OSIVQ), Betts' Questionnaire Upon Mental Imagery (Betts' QMI), and the Measure of Ability to Form Spatial Mental Imagery (MASMI). Internal consistency reliability for both was high, with the VVIQ-RV having a Cronbach's alpha of .96, and the VVIQ-2 an alpha of .91. The construct validity of the VVIQ-RV and the VVIQ-2 was supported by the high correlations they had with the other three measures of imagery, which were all close to .50, and the very small correlations (.06-.07) they had with the Verbal scale of the OSIVQ, indicating that they validly measured the imagery construct. Thus, the findings support the two versions as equally valid psychometric instruments for measuring image vividness.     

Some psychometric properties of the Spanish version of the Clarity of Auditory Imagery Scale

Few tests have been designed to measure auditory imagery. This study assessed the factor structure and internal consistency of the Spanish version of the Clarity of Auditory Imagery Scale (CAIS). Participants were 234 undergraduate students (M age = 19.6 yr.). Internal consistency reliability estimated by Cronbach's alpha was .82. In a principal components analysis followed by varimax orthogonal rotation, five factors were identified. Scores correlated moderately and positively with ratings on the Vividness of Visual Imagery Questionnaire-2 and negatively on the auditory scale of Betts' Questionnaire Upon Mental Imagery, but weakly and negatively with scores on the Measure of the Ability to Form Spatial Mental Imagery.     

"Binaural rivalry": dichotic listening as a tool for the investigation of the neural correlate of consciousness

Since about two decades neuroscientists have systematically faced the problem of consciousness: the aim is to discover the neural activity specifically related to conscious perceptions, i.e. the biological properties of what philosophers call qualia. In this view, a neural correlate of consciousness (NCC) is a precise pattern of brain activity that specifically accompanies a particular conscious experience. Almost all studies aimed at investigating the NCC have been carried out in the visual system. One of the most promising paradigms is based on sensory stimuli which elicit bistable percepts, as they allow to decouple subjective perception from the characteristics of the physical stimulation. Such kind of perception can be produced in the visual modality by using particular images (e.g. Rubin's vase/face figure) or by presenting two dissimilar stimuli separately to the two eyes (binocular rivalry). The stimuli compete for perceptual dominance and each image is visible in turn for a few seconds, while the other is suppressed. The use of this methodology has led to important findings concerning visual consciousness, which are briefly discussed. For the investigation of auditory consciousness, a similar stimulation paradigm can be achieved by using dichotic listening, consisting in two different stimuli presented each to one ear, which compete for perception (binaural rivalry). The principal aim of the present mini-review is to discuss the few contributes facing the issue of auditory consciousness and to advance the use of dichotic listening and binaural rivalry as valid tools for its investigation.     

La Evolucion de la filosofia de Wittgenstein

Summary The author claims that there is a basic difference between theTractatus and thePhilosophical Investigations; despite Bernstein's and O'Brien's claims to the contrary, there are, indeed, two Wittgensteins. Yet, to ascertain the difference between both we must look at Wittgenstein's conceptions of philosophy rather than at his views on logic and language. Wittgenstein's different, and even divergent, views on logic and language are grounded on his two views on philosophy and not the other way around. At the same time, Wittgenstein's views on philosophy are caused by his ways of conceiving the scope of philosophical activity in regard to language. Both in theTractatus and in thePhilosophical Investigations, Wittgenstein points out what is important in language for philosophy, but in each case he reaches very different conclusions. Now, when all is said, there remains one unifying factor in all of Wittgenstein's investigations: it is the question of the logic of language, which shifts positions from theTractatus to theInvestigations, so that what was earlier a hidden structure becomes later the grammar of its indefinitely complexe uses.     

The Houston Conference: The Need for More Discussion

Neuropsychology Review -