BACKGROUND There are two accounts of categorization performance in autism: that there is an impairment in prototype formation (Klinger & Dawson, 2001) and that there is an impairment in processing features held in common between stimuli (Plaisted, O'Riordan, & Baron-Cohen, 1998). These accounts, together with central coherence theory (Frith, 1989; Frith & Happé, 1994), imply a reduced or absent...

According to the two-systems account of theory of mind (ToM), understanding mental states of others involves both fast social-perceptual processes, as well as slower, reflexive cognitive operations (Frith and Frith, 2008; Apperly and Butterfill, 2009). To test the respective roles of specific abilities in either of these processes we administered 15 experimental procedures to a large sample of ...

I wonder if the readers of this journal remember that time, not so long ago, when functional psychoses such as schizophrenia had nothing to do with the brain? This belief was not limited to antipsychiatrists such as Szasz. When my colleague, psychiatrist Eve Johnstone, published her classic paper in 1976 in the Lancet demonstrating enlarged ventricles in association with chronic schizophrenia (...

If ∇ is a torsionless connection on the tangent bundle of a manifold M the Weyl curvature W is the part of the curvature in kernel of the Ricci contraction. We give a coordinate free proof of Weyl’s result that W vanishes if and only if (M,∇) is (locally) diffeomorphic to RP with ∇, when transported to RP, in the projective class of ∇LC , the Levi-Civita connection of the Fubini–Study metric on...

Dr. John Ridgway died on Saturday the 10th January from heart disease, which had curtailed his activities, both professional and otherwise, during the last six years of his life. John Ridgway went to Clifton College when the family moved from Newcastle-under-Lyme to Bristol. At school his aptitudes were greatest in history and he might well have taken history at University but, fortunately for ...

We use a unique firm-level panel data set of multinational parents and their foreign affiliates to analyze whether profits are shared across borders within multinational firms. Using both fixed-effects and generalized method-of-moments estimators, affiliate wage levels are estimated to respond to both affiliate and parent profitability. The elasticity of affiliate wages to parent profits per wo...

Polar exploration history should easily capture a wide range of imaginations, and ‘climate change’ together with the anthropogenic component of its causes and consequences is a topic that is now discussed by ordinary people across the world. However, it is a large, multifaceted and highly complex concept to come to grips with, where the devil is often in the detail. Thus, it is no mean task to ...

John McCarthy, considerado como uno de los padres de la Inteligencia Artificial, es hijo de padre católico irlandés y madre judía lituana. Ingresó en el Caltech (Instituto Tecnológico de California) a los 16 años, de donde fue expulsado por negarse a seguir las clases de educación física, pero años después fue admitido de nuevo como veterano de guerra. Se licenció en matemáticas en 1948, despué...

one whose clinical acumen, painstaking and accurate observations and valuable writings had gained for him a reputation which was world-wide and which added a lustre to British Medicine. John Thomson was born in Edinburgh in 1856, and, after receiving his education at the Academy and University, he studied in London, Berlin and Vienna. His interest was early directed towards diseases of children...