Publications by authors named "Walter Widdig"

Unlabelled: Stroke patients with relevant deficits are not allowed to drive. This study tended to assess driving abilities in an early stage after cerebral ischemia with a driving simulator.

Methods: 32 patients (aged 54.

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Daytime sleepiness and cataplexy can increase automobile accident rates in narcolepsy. Several countries have produced guidelines for issuing a driving license. The aim of the study was to compare driving simulator performance and neuropsychological test results in narcolepsy in order to evaluate their predictive value regarding driving ability.

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Cortical visual disturbances can occur after traumatic or ischemic brain lesion. Patients mostly suffer from hemianopia. Different treatment approaches in patients with hemianopia are being debated with respect to their effectiveness.

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We investigated three patients with partial cortical blindness after brain injury by means of functional magnetic resonance imaging (fMRI) before and after the application of a daily visual stimulation-therapy over a period of 6 months. Before therapy, fMRI data showed a severely reduced blood-oxygen-level-dependent (BOLD) signal in primary visual cortex when compared to healthy volunteers. Following several months of rehabilitative therapy a neuropsychological improvement of visual functions was accompanied by an increase in BOLD signal of residual perilesional regions whereas fMRI data of the control group remained unchanged.

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