Segmentation of object outlines into parts: a large-scale integrative study

In this study, a large number of observers (N=201) were asked to segment a collection of outlines derived from line drawings of everyday objects (N=88). This data set was then used as a benchmark to evaluate current models of object segmentation. All of the previously proposed rules of segmentation were found supported in our results. For example, minima of curvature (i.e. locations along the contour where negative curvature takes an extreme value) were often used as segmentation points. The second point of a pair connected by a segmentation line often depended on more global shape characteristics such as proximity, collinearity, symmetry, and elongation. Based on these results, a framework is presented in which all of the previously proposed (and now empirically validated) segmentation rules or rules for part formation are integrated.     

Unpacking psychological inequalities in organisations: Psychological capital reconsidered

In this paper, we argue that psychological capital is unequally distributed among people from different social classes, ethnic backgrounds and genders. Confronting the limitations of the current, individualistic perspective on psychological capital, we offer a re-conceptualisation of the construct from a critical, interdisciplinary perspective, placing it at the intersection of sociology and psychology. We discuss the various mechanisms through which social inequalities may cause differential access to psychological capital for members of low- and high-status social groups and show how this differential access to psychological capital results in and exacerbates social inequalities. By doing this, we postulate a recursive theory on psychological capital that both recognises the formative effect of socio-organisational structures on one's psychology and vice versa.     

Marion, Levinas, and Heidegger on the question concerning ontotheology

In this article, the differences between Jean-Luc Marion, Emmanuel Levinas and Martin Heidegger’s approaches to ontotheology are discussed. Whereas Marion argues for a historical approach to this question, i.e., testing whether ontotheology can be detected in this or that thinker in this history of philosophy, this article aims, with Levinas and Heidegger, for an ontological approach to the question concerning ontotheology. In this regard, this text expresses wonder about Marion’s claim that Medieval theology would not have succumbed to ontotheology whereas ancient and modern did. It is shown that ontotheology, for Levinas as well as Heidegger, might not be overcome with a simple command but rather belongs to the very structure of thought. The article concludes with offering some corrections to the Levinasian ‘God outside of onto-theology’ by a more phenomenological account of being-in-the world.     

The Functional Measurement Experiment Builder suite: Two Java-based programs to generate and run functional measurement experiments

We propose a free, easy-to-use computer program that does not requires prior knowledge of computer programming to generate and run experiments using textual or pictorial stimuli. Although the FM Experiment Builder suite was initially programmed for building and conducting FM experiments, it can also be applied for non-FM experiments that necessitate randomized, single, or multifactorial designs. The program is highly configurable, allowing multilingual use and a wide range of different response formats. The outputs of the experiments are Microsoft Excel compatible .xls files that allow easy copy-paste of the results into Weiss's FM CalSTAT program (2006) or any other statistical package. Its Java-based structure is compatible with both Windows and Macintosh operating systems, and its compactness (< 1 MB) makes it easily distributable over the Internet.     

Contour-based object identification and segmentation: stimuli, norms and data, and software tools.

We summarize five studies of our large-scale research program, in which we examined aspects of contour-based object identification and segmentation, and we report on the stimuli we used, the norms and data we collected, and the software tools we developed. The stimuli were outlines derived from the standard set of line drawings of everyday objects by Snodgrass and Vanderwart (1980). We used contour curvature as a major variable in all the studies. The total number of 1,500 participants produced very solid, normative identification rates of silhouettes and contours, straight-line versions, and fragmented versions, and quite reliable benchmark data about saliency of points and object segmentation into parts. We also developed several software tools to generate stimuli and to analyze the data in nonstandard ways. Our stimuli, norms and data, and software tools have great potential for further exploration of factors influencing contour-based object identification, and are also useful for researchers in many different disciplines (including computer vision) on a wide variety of research topics (e.g., priming, agnosia, perceptual organization, and picture naming). The full set of norms, data, and stimuli may be downloaded from www.psychonomic.org/archive/.     

Core self-evaluations as a moderator of the relationship between task complexity,job resources,and performance

In this study we examined the role of trait core self-evaluations (CSE) as a person-related resource, hypothesizing that the relationship between task complexity and performance would be positive for people high in trait CSE and negative for people low in trait CSE. Moreover, we hypothesized that trait CSE would influence the buffering effect of job-related resources on the complexity–performance relationship, with such a buffering effect showing for people high but not for people low in trait CSE. To test our hypotheses, we conducted a five-day spanning experience sampling study. Our results showed that trait CSE indeed influenced the complexity–performance relationship in the sense that this relationship was only positive for employees high in CSE. Results on the hypothesized three-way interaction between task complexity, job-related resources, and CSE were less univocal as only one out of four three-way interactions approached conventional levels of significance. By showing that the complexity–performance relationship is only positive for employees high in CSE, our results go against the well-accepted idea that challenge demands act as a two-edged sword for all employees alike. Instead, the effect of challenge demands on performance depends on the individual’s level of person-related resources.     

Jean-Yves Lacoste’s thesis on truth

Continental Philosophy Review - This essay offers a commentary of Jean-Yves Lacoste’s most recent book Théses sur le vrai (2018). It does so through a close reading of the book’s...     

Breaking Psychological Contracts with the Burden of Workload: A Weekly Study of Job Resources as Moderators

This intra‐individual study examined relationships over time of job demands and resources with employee perceptions of psychological contract breach and violation, or the emotional impact of breach. Based on Conservation of Resources (COR) Theory, we expected job demands to increase the susceptibility of experiencing contract breach and violation over time, and we expected this relationship to be moderated by available job resources. In particular, autonomy and social support were expected to buffer relationships of job demands with breach, while development was expected to intensify relationships between job demands and breach. For violation, we expected job resources to intensify the relationships between job demands and breach, in line with the betrayal hypothesis. Analyses on weekly diary data showed that weekly job demands were related to higher contract breach perceptions in the following week when autonomy and social support were low and when development was high. Moreover, weekly job demands were related to higher violation in the next week, especially when social support was high. The study shows that job demands may be related to higher odds of experiencing a breach and higher violation, and job resources may play opposite roles in moderating the relationships of job demands with breach and violation.