Children view own-age faces qualitatively differently to other-age faces

Like most own-group biases in face recognition, the own-age bias (OAB) is thought to be based either on perceptual expertise or socio-cognitive motivational mechanisms [Wolff, N., Kemter, K., Schweinberger, S. R., &; Wiese, H. (2013). What drives social in-group biases in face recognition memory? ERP evidence from the own-gender bias. Social Cognitive and Affective Neuroscience. doi:10.1093/scan/nst024]. The present study employed a recognition paradigm with eye-tracking in order to assess whether participants actively viewed faces of their own-age differently to that of other-age faces. The results indicated a significant OAB (superior recognition for own-age relative to other-age faces), provided that they were upright, indicative of expertise being employed for the recognition of own-age faces. However, the eye-tracking results indicate that viewing other-age faces was qualitatively different to the viewing of own-age faces, with more nose fixations for other-age faces. These results are interpreted as supporting the socio-cognitive model of the OAB.     

The most good you can do: a response to the commentaries

Anthony Skelton, Violetta Igneski and Tracy Isaacs share my view that our obligations to help people in extreme poverty go beyond what is conventionally accepted. Nevertheless, the other contributors argue that my view is too demanding, while noting some tensions between my different writings on this issue. I explain my position, drawing on Sidgwick’s distinction between what someone ought to do, and what we should praise or blame someone for doing or not doing. I also respond to the position that Skelton considers preferable to mine, drawing this time on an argument that Katarzyna de Lazari-Radek and I have made in our recent book, The Point of View of the Universe. I also address Igneski’s concerns about gender inequality, and indicate my broad agreement with Isaacs’ suggestion that effective altruism could benefit from a more co-ordinated approach.     

The 'Plain' and the 'Positive': Ritual,Experience and Aesthetics in Quakerism and Charismatic Christianity

This paper argues that sharp distinctions between formal ritual action and everyday practice cannot always be sustained. Drawing on ethnographic fieldwork among British Quakers and Swedish charismatic Protestants, we seek to show that both groups manifest an experiential aesthetic that constructs and is constructed by engagement in daily life. The Quaker aesthetic we call 'the plain', and the charismatic aesthetic we term 'the positive'. In presenting our argument, we adopt Bourdieu's concept of habitus and extend its meaning to take account of material culture in the establishment of religious commitment.     

Skepticism and Epistemic Logic

This essay attempts to implement epistemic logic through a non-classical inference relation. Given that relation, an account of '(the individual) a knows that A' is constructed as an unfamiliar non-normal modal logic. One advantage to this approach is a new analysis of the skeptical argument.     

Anxiety and Threat Perception Abnormalities in Normal Children

The current study examined the relationship between childhood anxiety and threat perception abnormalities. Children (N = 105) were exposed to stories reflecting three types of anxiety: social anxiety, separation anxiety, and generalized anxiety. From children's reactions to the stories, a number of threat perception indices were derived. Children's level of anxiety was assessed by means of questionnaires and a structured diagnostic interview. Results indicated that high levels of anxiety, as measured by questionnaires and interview, were accompanied by a high frequency of threat perception, high ratings of threat, a high frequency of threatening interpretations, high levels of negative feelings and cognitions, and an early detection of threat. Furthermore, results seemed to suggest that threat perception abnormalities were mediated by children's general level of anxiety rather than by levels of specific anxiety symptoms.     

Robust mean and covariance structure analysis through iteratively reweighted least squares

Robust schemes in regression are adapted to mean and covariance structure analysis, providing an iteratively reweighted least squares approach to robust structural equation modeling. Each case is properly weighted according to its distance, based on first and second order moments, from the structural model. A simple weighting function is adopted because of its flexibility with changing dimensions. The weight matrix is obtained from an adaptive way of using residuals. Test statistic and standard error estimators are given, based on iteratively reweighted least squares. The method reduces to a standard distribution-free methodology if all cases are equally weighted. Examples demonstrate the value of the robust procedure.The authors acknowledge the constructive comments of three referees and the Editor that lead to an improved version of the paper. This work was supported by National Institute on Drug Abuse Grants DA01070 and DA00017 and by the University of North Texas Faculty Research Grant Program.