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BACKGROUND AND PURPOSE Age related white matter changes (ARWMC) are frequent in non-demented old subjects and are associated with impaired cognitive function. Our aim was to study the influence of vascular risk factors and ARWMC on the neuropsychological performance of an independent elderly population, to see if vascular risk factors impair cognition in(More)
The relationship between age-related white matter changes and cognitive performance in independent elderly people is still not clear. The Leukoaraiosis and Disability in the Elderly study (LADIS) involves 11 European centers. It aims to assess the role of the age-related white matter changes as an independent factor in the transition to disability, and in(More)
OBJECTIVE Ataxia is characterized clinically by four signs (gait and limb ataxia, dysarthria and nystagmus). Although ataxia has been described in posterior circulation (PC) stroke series, there are no prospective studies that have investigated a possible differential role of the cerebellum or its input/outputs in causing ataxia. METHODS Ataxia was(More)
Tran and Baral have proposed an action language (BioSigNet-RR) that is specific for the modeling of signalling networks from Biology and for answering queries relative to the expected response to a stimulus. Translation of their action language to logic programs under Answer Set semantics yields a reasoning mechanisms that gracefully handles(More)
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