Gaze orientation interferes with mental numerical representation

Number comparison tasks are characterized by distance and size effects. The distance effect reveals that the higher the distance is between two numbers, the easier their magnitude comparison is. Accordingly, people are thought to represent numbers on a spatial dimension, the mental number line, on which any given number corresponds to a location on the line. The size effect, instead, states that at any given distance, comparing two small numbers is easier than comparing two large numbers, thus suggesting that larger numbers are more vaguely represented than smaller ones. In the present work we first tested whether the participants were adopting a spatial strategy to solve a very simple numbers comparison task, by assessing the presence of the distance and the magnitude effect. Secondarily, we focused on the influence of gaze position on their performance. The present results provide evidence that gaze direction interferes with number comparisons, worsening the vague representation of larger numbers and further supporting the hypothesis of the overlapping between physical and mental spaces.     

A technique for the measurement of aggressive behavior in mice

This paper describes an apparatus permitting the study of aggressive behavior in mice. Aggressive behavior may be spontaneous or induced by means of an electric shock delivered through the tail.     

Cooperation increases bottlenose dolphins’ (Tursiops truncatus) social affiliation

Animal Cognition - Dolphins live in a fission–fusion society, where strong social bonds and alliances can last for decades. However, the mechanism that allows dolphins to form such strong...     

A Duality for Involutive Bisemilattices

Studia Logica - We establish a duality between the category of involutive bisemilattices and the category of semilattice inverse systems of Stone spaces, using Stone duality from one side and the...     

The Question of a Thing-Centred View of Education: Notes on Vlieghe and Zamojski’s Towards an Ontology of Teaching

Studies in Philosophy and Education -     

Bystanders’ reactions to intimate partner violence: an experimental approach

ABSTRACT

Intimate Partner Violence (IPV) is a widespread phenomenon. Despite the prevalence of IPV in Western societies, most cases remain unnoticed or at least unreported to authorities. Social psychologists have been investigating bystanders’ reactions to IPV, to understand which factors may influence the willingness to intervene in support of a female victim of violence. We review a research programme that directly investigated personal and situational factors that make potential bystanders believe a woman victim of IPV deserves and needs (their) help and support, and what, on the contrary, makes them deny any such willingness to help. We present evidence about the situational antecedents of bystander’s reaction, the underlying mechanisms of this intervention, and an extension of such evidence to non-prototypical cases, i.e., to an IPV episode occurring within a same-sex couple. We conclude by discussing future directions, and by highlighting the theoretical and practical contributions of this programme of research to the understanding of IPV for both researchers and practitioners.