Christoph Norden

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BACKGROUND Directional sensitivity is relevant for the excitability threshold of the human primary motor cortex, but its importance for externally induced plasticity is unknown. OBJECTIVE To study the influence of current direction on two paradigms inducing neuroplasticity by repetitive transcranial magnetic stimulation (rTMS). METHODS We studied(More)
Our knowledge about the mechanisms of human motor cortex facilitation induced by repetitive transcranial magnetic stimulation (rTMS) is still incomplete. Here we used pharmacological conditioning with carbamazepine, dextrometorphan, lorazepam, and placebo to elucidate the type of plasticity underlying this facilitation, and to probe if mechanisms(More)
In previously healthy, 49-year-old man, CNS infection due to Nocardia asteroides was manifested initially as sterile meningitis and then as a single large brain abscess and was treated successfully with medical therapy alone. Resolution of the brain abscess was documented with serial computed tomographic scans. The strain of N asteroides was sensitive to(More)
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