Closely overlapping responses to tools and hands in left lateral occipitotemporal cortex

The perception of object-directed actions performed by either hands or tools recruits regions in left fronto-parietal cortex. Here, using functional MRI (fMRI), we tested whether the common role of hands and tools in object manipulation is also reflected in the distribution of response patterns to these categories in visual cortex. In two experiments we found that static pictures of hands and tools activated closely overlapping regions in left lateral occipitotemporal cortex (LOTC). Left LOTC responses to tools selectively overlapped with responses to hands but not with responses to whole bodies, nonhand body parts, other objects, or visual motion. Multivoxel pattern analysis in left LOTC indicated a high degree of similarity between response patterns to hands and tools but not between hands or tools and other body parts. Finally, functional connectivity analysis showed that the left LOTC hand/tool region was selectively connected, relative to neighboring body-, motion-, and object-responsive regions, with regions in left intraparietal sulcus and left premotor cortex that have previously been implicated in hand/tool action-related processing. Taken together, these results suggest that action-related object properties shared by hands and tools are reflected in the organization of high-order visual cortex. We propose that the functional organization of high-order visual cortex partly reflects the organization of downstream functional networks, such as the fronto-parietal action network, due to differences within visual cortex in the connectivity to these networks.     

Molecular and phenotypic characterization of Acinetobacter strains able to degrade diesel fuel

Characterization of bacterial communities in oil-contaminated soils and evaluation of their degradation capacities may serve as a guide for improving remediation of such environments. Using physiological and molecular methods, the aim of this work was to characterize 17 Acinetobacter strains (13 species) able to use diesel fuel oil as sole carbon and energy source. The strains were first tested for their ability to grow on different alkanes on minimal medium containing high NaCl concentrations. The envelope hydrophobicity of each strain was assessed by microbial adhesion to the hydrocarbon test (MATH) when grown in LB medium or minimal medium containing succinate or diesel fuel. Most strains were hydrophobic both in LB and minimal medium, except for strain Acinetobacter venetianus VE-C3 that was hydrophobic only in minimal medium. Furthermore, two A. venetianus strains, RAG-1(T) and LUH 7437, and strain ATCC 17905 (genomic species 13BJ) displayed biosurfactant activity. The alkM gene encoding alkane hydroxylase was detected in the chromosome of the 15 strains by PCR amplification, sequencing and Southern blot analysis. Phenotype microarray analysis performed on the five A. venetianus strains revealed that they differentially used purines as N-source and confirmed that they are unable to use carbohydrates.     

High-dose fenoldopam reduces postoperative neutrophil gelatinase-associated lipocaline and cystatin C levels in pediatric cardiac surgery

Introduction  

The aim of the study was to evaluate the effects of high-dose fenoldopam, a selective dopamine-1 receptor, on renal function and organ perfusion during cardiopulmonary bypass (CPB) in infants with congenital heart disease (CHD).     

Cognitive function and competitive employment in schizophrenia: relative contribution of insight and psychopathology

Purpose  

This study investigated the relationships among insight, psychopathology, cognitive function, and competitive employment in order to determine whether insight and/or psychopathology carried the influence of cognitive function to competitive employment.