Although postural control requires the integration of different sensory cues, little is known about the role of attentional artifacts on the individual's ability to properly respond to postural challenges. This study investigated the effects of concomitant tasks (cognitive and postural) on the relationship between visual information and body sway. Thirty healthy adults were asked to stand still inside of a moving room on normal and reduced bases of support. Initially, the participants were not aware of any visual manipulation and were asked to perform tasks that required concomitant attentional demands. Then, all participants were informed about the visual manipulation and were requested to resist it. The results showed that information about visual manipulation changed the coupling between visual information and body sway, but only in a less demanding task, and that it was affected by the concomitant task. The coupling between visual information and body sway for postural control does not demand attention on a regular basis, but any change in this relationship demands attention and occurs in less demanding postural tasks.
This report describes a fatal case of a pet dog with major enteric signs owned by a family that has experienced cases of pulmonary tuberculosis (TB) in the household. Clinical and epidemiological aspects, imaging data, microbiological, haematological and histopathological examinations were assessed to diagnosis of disease. gyrB-RFLP, spoligotyping and MIRU-VNTR allowed molecular detection of M. tuberculosis strain from S family. The resazurin microtiter assay indicated that all isolates were resistant to isoniazid, ethambutol, ciprofloxacin, ofloxacin, streptomycin and amikacin. The public health concerns related to canine tuberculosis and risk of the dissemination by pets of M. tuberculosis pre-multidrug-resistant (PMD) to isoniazid, ethambutol and other first-line drugs used in human therapy of TB are discussed. We believe this to be the first report of PMD M. tuberculosis infection in a dog presenting mainly enteric manifestation, confirmed as S lineage by molecular methods, owned by a family in which TB has spread in the household for generations.
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