A Continuum of Inductive Methods Arising from a Generalized Principle of Instantial Relevance

In this paper we consider a natural generalization of the Principle of Instantial Relevance and give a complete characterization of the probabilistic belief functions satisfying this principle as a family of discrete probability functions parameterized by a single real δ ∈ [0, 1). *Supported by a UK Engineering and Physical Sciences Research Council (EPSRC) Research Studentship     

Affect dysregulation in individuals with borderline personality disorder: persistence and interpersonal triggers

We hypothesized that affect dysregulation among individuals with borderline personality disorder (BPD) would involve greater persistence of negative affect between interpersonal events and heightened reactivity to stimuli indicating risk of rejection or disapproval, specifically perceptions of others' communal (agreeable-quarrelsome) behaviors. A total of 38 participants with BPD and 31 controls collected information about affect and perceptions of the interaction partner's behavior during interpersonal events for a 20-day period. Negative and positive affect persisted more across interpersonal events for individuals with BPD than for controls. In addition, individuals with BPD reported a greater increase in negative affect when they perceived less communal behavior and a smaller increase in positive affect when they perceived more communal behavior in others. Findings indicate the importance of interpersonal perceptions in the affect dysregulation of individuals with BPD.     

The Empirical Case for Moral Beauty

Although formative of modern value theory, the moral beauty view—which states that moral virtue is beautiful and moral vice is ugly—is now mostly neglected by (analytic) philosophers. The two contemporary defences of the view mostly capitalize on its intuitive attractiveness, but to little avail: such considerations hardly convince sceptics of what is nowadays a rather unpopular view. Historically, the view was supported by thought experiments; and although these greatly increase its plausibility, they also raise empirical questions, which they leave unanswered. Here, I offer a novel defence of the moral beauty view, capitalizing on empirical evidence and arguing via an inference to the best explanation.     

Sex differences in early verbal and non‐verbal cognitive development

The present study of over 3000 2‐year‐old twin pairs used a sex‐limitation model to examine genetic and environmental origins of sex differences in verbal and non‐verbal cognitive ability. Girls scored significantly higher on both measures (p<0.0001), although gender only accounted for approximately 3% of the variance in verbal ability and 1% of the variance in non‐verbal cognitive ability. For the verbal measure boys showed greater heritability than girls. Also the twin‐pair correlation is significantly lower for opposite‐sex twins than for non‐identical same‐sex twins. This indicates that individual differences in verbal ability include some sex‐specific factors. Non‐verbal cognitive ability did not differ in aetiology for boys and girls. We conclude that genetic and environmental influences differ for girls and boys for early verbal but not non‐verbal development.