When young children attempt to locate numbers along a number line, they show logarithmic (or other compressive) placement. For example, the distance between “5” and “10” is larger than the distance between “75” and “80.” This has often been explained by assuming that children have a logarithmically scaled mental representation of number (e.g., Berteletti, Lucangeli, Piazza, Dehaene, & Zorzi, 2010; Siegler & Opfer, 2003). However, several investigators have questioned this argument (e.g., Barth & Paladino, 2011; Cantlon, Cordes, Libertus, & (...) Brannon, 2009; Cohen & Blanc-Goldhammer, 2011). We show here that children prefer linear number lines over logarithmic lines when they do not have to deal with the meanings of individual numerals (i.e., number symbols, such as “5” or “80”). In Experiments 1 and 2, when 5- and 6- year-olds choose between number lines in a forced-choice task, they prefer linear to logarithmic and exponential displays. However, this preference does not persist when Experiment 3 presents the same lines without reference to numbers, and children simply choose which line they like best. In Experiments 4 and 5, children position beads on a number line to indicate how the integers 1 100 are arranged. The bead placement of 4- and 5-year-olds is better fit by a linear than by a logarithmic model. We argue that previous results from the number line task may depend on strategies specific to the task. (shrink)

A striking feature of atrocities, as seen in genocides, civil wars or violence against certain racial and ethnic groups, is the attempt to dehumanize – to deny and strip human beings of their humanity. Yet the very nature of dehumanization remains relatively poorly understood. The Routledge Handbook of Dehumanization is the first comprehensive and multidisciplinary reference source on the subject and an outstanding survey of the key concepts, issues and debates within dehumanization studies. Organized into four parts, the Handbook covers (...) the following key topics: (I) The history of dehumanization from Greek Antiquity to the Twentieth century, contextualizing the oscillating boundaries, dimensions, and hierarchies of humanity in the history of the ‘West’. (II) How dehumanization is contemporarily studied with respect to special contexts: as part of social psychology, as part of legal studies or literary studies, and how it connects to the idea of human rights, disability and eugenics, the question of animals, and the issue of moral standing. (III) How to tackle its complex facets, with respect to the perpetrator’s and the target’s perspective, metadehumanization and selfdehumanization, rehumanization, social death, status and interdependence, as well as the fear we show towards robots that become too human for us. (IV) Conceptual and epistemological questions on how to distinguish different forms of dehumanization and neighboring phenomena, on why dehumanization appears so paradoxical, and on its connection to hatred, essentialism, and perception. -- Essential reading for students and researchers in philosophy, history, psychology, and anthropology this Handbook will also be of interest to those in related disciplines such as politics, international relations, criminology, legal studies, literary studies, gender studies, disability studies, or race and ethnic studies, as well as readers from social work, political activism, and public policy --- Table of Contents: Introduction. 1. Mapping dehumanization studies. – Maria Kronfeldner. Part I. Oscillating boundaries, dimensions, and hierarchies of humanity in historical contexts. 2. Dehumanization Before the Columbian exchange – Siep Stuurman. 3. 'Humanity' and its Limits in Early Modern European Thought – László Kontler. 4. Enlightenment Humanization and Dehumanization and the Orang-utan – Silvia Sebastiani. 5. Dehumanizing the Exotic in Living Human Exhibitions – Guido Abbattista. 6. Dehumanizing Strategies in Nazi Ideology and their Anthropological Context – Johannes Steizinger. 7. Theorizing the Inhumanity of Human Nature, 1955-1985 – Erika Lorraine Milam. Part II: Further special contexts of dehumanization. 8. The Social Psychology of Dehumanization – Nick Haslam. 9. Dehumanization and the Loss of Moral Standing – Edouard Machery. 10. Dehumanization and the Question of Animals – Alice Crary. 11. Dehumanization, Disability, and Eugenics – Robert A. Wilson. 12. Dehumanization and Human Rights – Marie-Luisa Frick. 13. Dehumanization by Law – Luigi Corrias. 14. Dehumanisation in Literature and the Figure of the Perpetrator – Andrea Timár. Part III: The complex facets of dehumanization. 15. Dehumanization and Social Death as Fundamentals of Racism – Wulf D. Hund. 16. How Status and Interdependence Explain Different Forms of Dehumanization – Susan T. Fiske. 17. Exploring Metadehumanization and Self-dehumanization from a Target Perspective – Stéphanie Demoulin, Pierre Maurage, Florence Stinglhamber. 18. The Dehumanization and Rehumanization of Refugees – Victoria M. Esses, Stelian Medianu, Alina Sutter. 19. Motivational and Cognitive Underpinnings of Fear of Social Robots that become ‘Too Human for Us’ – Maria Paola Paladino, Jeroen Vaes, Jolanda Jetten. Part IV: Conceptual and epistemological questions regarding dehumanization. 20. Objectification, Inferiorization and Projection in Phenomenological Research on Dehumanization – Sara Heinämaa and James Jardine. 21. Why Dehumanization is Distinct from Objectification – Mari Mikkola. 22. On Hatred and Dehumanization – Thomas Brudholm and Johannes Lang. 23. Dehumanization, the Problem of Humanity, and the Problem of Monstrosity – David Livingstone Smith. 24. Psychological Essentialism and Dehumanization – Maria Kronfeldner. 25. Could Dehumanization Be Perceptual? – Somogy Varga. (shrink)