Logical Foundations and Kant's Principles of Formal Logic

The abstract status of Kant's account of his ‘general logic’ is explained in comparison with Gödel's general definition of a formal logical system and reflections on ‘abstract’ (‘absolute’) concepts. Thereafter, an informal reconstruction of Kant's general logic is given from the aspect of the principles of contradiction, of sufficient reason, and of excluded middle. It is shown that Kant's composition of logic consists in a gradual strengthening of logical principles, starting from a weak principle of contradiction that tolerates a sort of contradictions in predication, and then proceeding to the (constructive) principle of sufficient reason, and to a classical-like logic, which includes the principle of excluded middle. A first-order formalisation is applied to this reconstruction, which reveals implicit modalities in Kant's account of logic, and confirms the implementability of Kant's logic into a sound and complete formal system.     

Personnel selection in the digital age: a review of validity and applicant reactions,and future research challenges

ABSTRACT

We present a targeted review of recent developments and advances in digital selection procedures (DSPs) with particular attention to advances in internet-based techniques. By reviewing the emergence of DSPs in selection research and practice, we highlight five main categories of methods (online applications, online psychometric testing, digital interviews, gamified assessment and social media). We discuss the evidence base for each of these DSP groups, focusing on construct and criterion validity, and applicant reactions to their use in organizations. Based on the findings of our review, we present a critique of the evidence base for DSPs in industrial, work and organizational psychology and set out an agenda for advancing research. We identify pressing gaps in our understanding of DSPs, and ten key questions to be answered. Given that DSPs are likely to depart further from traditional non-digital selection procedures in the future, a theme in this agenda is the need to establish a distinct and specific literature on DSPs, and to do so at a pace that reflects the speed of the underlying technological advancement. In concluding, we, therefore, issue a call to action for selection researchers in work and organizational psychology to commence a new and rigorous multidisciplinary programme of scientific study of DSPs.     

Molecular Mechanisms Associated with the Benefits of Variable Practice in Motor Learning

Abstract

Variable practice promotes a higher level of motor learning than constant practice. The glutamate receptors, n-methyl-d-aspartate (NMDA) and alfa-amino-3-hydroxy-5-methyl-4-isoxazolepropionic (AMPA), have been associated with the changes in motor cortex that occur throughout the process of motor learning. Considering that, it is possible that variable practice is more associated with the NMDA and AMPA receptors than constant practice. This study aimed ao investigating the association between the glutamate receptors, NMDA and AMPA, and constant and variable practice schedules. Seventy-eight male mice practiced the rotarod task in a constant or variable scheduling, in two consecutive days (acquisition phase). Learning tests were performed 24?h and 10?days after the end of the acquisition phase. Variable practice was more associated with the NMDA receptor and had a greater AMPA receptor expression than constant practice. The results suggest that the benefits of variable practice are result of both the greater dependency on the NMDA receptor and the greater AMPA receptor expression.     

A Prospective Study of High-School Adolescent Sexting Behavior and Psychological Distress

Abstract

Relying on conceptualization of sexting as a deviant behavior, which appear to be related with mental health problems, we examined the relationship between sexting and psychological distress. A one-year longitudinal study was performed among 216 girls and 143 boys, aged from 15 to 17?years (M?=?16.32, SD = .64). Participants completed the Sexting Behavior Questionnaire and the Depression Anxiety and Stress Scale at both time points of the study. The results showed that the prevalence for receiving sexts between the two time points was around 30%, and for sending sexts around 60%. The prevalence rates of receiving and sending sexually explicit context were quite stable over time, though they varied significantly across gender. Participants usually had sexted with a current or (ex)partner or friends. The number of person with whom participants exchange sexts did not exceed five. Anxiety and stress symptoms were more prevalent among sexters who receive sexts at the baseline than follow-up study (p < .05). Stress has been found to be significant predictors of sending sext at the baseline study (p < .05), while depression of receiving and sending at the follow-up study (p < .001). This study confirms that sexting is common among youth, and appears to be associated with negative consequences.     

How to address the caveat of avoiding direct contact: Reducing prejudice towards gay and lesbian people in five Balkan countries

ABSTRACT

In the Balkans, contact with gays and lesbians is typically hostile or avoided. Drawing from probability samples of young people from five Balkan countries (N = 1046), we examined whether it is possible to transfer the effects of contact with other marginalized outgroups (largest ethnic minority in every country, Roma, the extremely poor and physically disabled) to acceptance of gays and lesbians (secondary outgroup), and whether this relationship could be explained by attitude generalization and increased intergroup trust. Path analyses supported the secondary transfer effect: it confirmed that, while controlling for direct contact, contact with other marginalized groups was related to more acceptance of a secondary group; this relationship was mediated by trust. This was found across all primary groups in the combined samples, while the effect varied for different groups in country samples. The results add to the value of intergroup contact as a mean of prejudice-reduction.     

A new conception of visual aesthetic sensitivity

Aesthetic sensitivity has been defined as the ability to recognize and appreciate beauty and compositional excellence, and to judge artistic merit according to standards of aesthetic value. The Visual Aesthetic Sensitivity Test (VAST) has often been used to assess this ability, but recent research has revealed it has several psychometric problems. Such problems are not easily remedied, because they reflect flawed assumptions inherent to the concept of aesthetic sensitivity as traditionally understood, and to the VAST itself. We introduce a new conception of aesthetic sensitivity defined as the extent to which someone's aesthetic valuation is influenced by a given feature. Experiment 1 aimed to characterize aesthetic sensitivity to four prominent features in visual aesthetics: complexity, symmetry, contour, and balance. Experiment 2 aimed to replicate the findings of Experiment 1 and to assess the test–retest reliability of an instrument designed to measure aesthetic sensitivity to these features using an abridged set of stimuli. Our results reveal that people differ remarkably in the extent to which visual features influence their liking, highlighting the crucial role of individual variation when modelling aesthetic preferences. We did not find clear relations between the four measures of aesthetic sensitivity and personality, intelligence, and art interest and knowledge. Finally, our measurement instrument exhibited an adequate-to-good test–retest reliability.     

Having less,giving less: The effects of unfavorable social comparisons of affluence on people’s willingness to act for the benefit of others

Previous research has found a negative relationship between individual differences in personal relative deprivation (PRD; i.e., resentment stemming from the belief that one is worse off than similar others) and prosociality. Whether PRD causes reductions in people's willingness to act for the benefit of others, however, is yet to be established. Across six studies, we experimentally examined whether experiences of PRD via unfavorable (vs. favorable or lateral) social comparisons of affluence reduced prosociality toward known others and strangers. We found that making hypothetical (Study 1) or real (Study 2) unfavorable social comparisons of affluence in workplace contexts reduced participants’ organizational citizenship behavioral intentions. Furthermore, adverse social comparisons of affluence reduced generosity toward the targets of those comparisons during a Dictator Game (Studies 3 to 6). Across studies, we also measured participants’ subjective and objective socioeconomic status and found, contrary to previous theory and research, no consistent relationship between status and prosociality and no modulation of this relationship by either local or macro-level inequality. These results suggest that local, specific interpersonal comparisons of affluence play a more dominant role in people's willingness to act for the benefit of a comparison target than do their subjective or objective class rank or the prevailing income inequality of the state in which they reside.