review the literature on handedness, dichotic listening and anatomical asymmetry in schizophrenia and concluded that there was strong evidence for decreased cerebral lateralisation. As they point out, the implication is that finding the locus of the gene for cerebral dominance could unravel the genetic predisposition to schizophrenia. Procopio (2001) raises a number of points relevant to the fi...

Much research over the last decade has examined how the brain links local activity within primary visual cortex to signal the presence of extended global structure. Here we bring together two themes within this area by addressing how the immediate context that features arise in influences how they are integrated into contours. Specifically, observers were required to detect and discriminate the...

http://jech.bmj.com/cgi/content/full/61/1/3 Updated information and services can be found at: These include: References http://jech.bmj.com/cgi/content/full/61/1/3#BIBL This article cites 11 articles, 4 of which can be accessed free at: Rapid responses http://jech.bmj.com/cgi/eletter-submit/61/1/3 You can respond to this article at: http://jech.bmj.com/cgi/content/full/61/1/3#responses One rapi...

Recent data mining techniques exploit patterns of statistical independence in multivariate data to make conjectures about cause/effect relationships. These relationships can be used to construct causal graphs, which are sometimes represented by weighted node-link diagrams, with nodes representing variables and combinations of weighted links and/or nodes showing the strength of causal relationsh...

Market mavens are consumers who are highly involved in the marketplace and represent an important source of marketplace information to other consumers. Because of their influence on other consumers across a wide range of product domains, market mavens are particularly interesting to retailers. Previous studies have clarified the behavioral tendencies of market mavens. The present study focuses ...

A coupled circulation-and-ecosystem model, developed as part of the RISE (River Influences on Shelf Ecosystems) program, is used to examine the role of the Columbia River plume in shaping broad patterns of nutrient flux and primary production on the Washington and Oregon coasts. Realistic simulations of summer 2004 and 2005 in ROMS (Regional Ocean Modeling System) are forced by winds from the M...

Archaeological and ethnohistorical evidence suggests a link between a population's size and structure, and the diversity or sophistication of its toolkits or technologies. Addressing these patterns, several evolutionary models predict that both the size and social interconnectedness of populations can contribute to the complexity of its cultural repertoire. Some models also predict that a sudde...

I the animal kingdom, specific traits distinguish one group of animals from another. The beaks and feathers of birds, for example, set them apart from mammals and amphibians. Eurthermore, variations in those traits differentiate one kind of bird from another. Eor instance, ducks have long, wide and flat beaks, and geese have shorter, thinner and taller beaks. Nonetheless, birds also share many ...