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Research into the neural mechanisms of attention has revealed a complex network of brain regions that are involved in the execution of attention-demanding tasks. Recent advances in human neuroimaging now permit investigation of the elementary processes of attention being subserved by specific components of the brain's attention system. Here we describe(More)
In a previous study using positron emission tomography (PET), we demonstrated that focused attention to a location in the visual field produced increased regional cerebral blood flow in the fusiform gyrus contralateral to the attended hemifield (Heinze et al. [1994]: Nature 372:543). We related these effects to modulations in the amplitude of the P1(More)
Topographic maps are commonly constructed from electrical scalp recordings (such as EEGs and ERPs) using several different interpolation methods. It is important to determine the accuracy of such maps. Previous assessments of interpolation methods have been based on global error measures and the visual appearance of the topographic maps. However, the(More)
INTRODUCTION This study aims to characterize the population of patients presenting to a pediatric emergency department (ED) for a first complex febrile seizure, and subsequently assess the rate of acute bacterial meningitis (ABM) occurrence in this population. Furthermore, this study seeks to identify whether a specific subset of patients may be at lesser(More)
BACKGROUND The bite of Triatominae can cause cutaneous allergic reactions and even anaphylaxis. Since the early 1980s, no population-based surveys have been done in Southern California, and none was ever carried out in inland Los Angeles or Riverside Counties. OBJECTIVES To measure the frequency of insect sightings, bites and allergic reactions in a(More)
Clinical manifestations of pancreatic cancer often do not occur until the cancer has undergone metastasis, resulting in a very low survival rate. In this study, we investigated whether salivary bacterial profiles might provide useful biomarkers for early detection of pancreatic cancer. Using high-throughput sequencing of bacterial small subunit ribosomal(More)
Acknowledgments This project started in May of 2003 when a self-proclaimed hispanophile economics student found herself immersed in a chaotic city called Caracas, Venezuela. It has been a continual learning process and probably will never end. I think one expects to change when faced with new places and challenging situations. However, I never thought that(More)
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