Zoltán Szatmáry

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Firing of place cells in the exploring rat conveys doubly coded spatial information: both the rate of spikes and their timing relative to the phase of the ongoing field theta oscillation are correlated with the location of the animal. Specifically, the firing rate of a place cell waxes and wanes, while the timing of spikes precesses monotonically as the(More)
A patient with a 20 year history of primary orgasmic headache is described who, after suffering an unusually severe episode of orgasmic headache was found to have a middle cerebral artery dissection. This unusual association of primary and secondary orgasmic headache emphasises the need for a thorough diagnostic examination when the orgasmic headache(More)
BACKGROUND Brainstem intracranial dural arteriovenous fistulas are extremely rare and can mimic a glioma at the time of presentation. CASE We report a patient with an infiltrating brainstem lesion that finally revealed an intracranial dural arteriovenous fistula, with full neurological improvement after embolization. CONCLUSION A careful radiological(More)
BACKGROUND AND IMPORTANCE To present the feasibility of using the Ascent balloon, a new double-lumen remodeling balloon, for a new 2-in-1 technique allowing coiling through the lumen of the balloon without the use of an additional coiling microcatheter. Remodeling technique had enlarged the indications for endovascular treatment of intracranial aneurysm.(More)
We report the case of an early ISR that was due to platelet aggregation despite correct observance of a standard antiplatelet regimen. Biologic testing showed clopidogrel inefficiency, and ISR disappeared on angiography after a loading dose of clopidogrel. This result suggested that the arterial lumen reduction was due to platelet aggregation rather than(More)
SUMMARY We describe three cases of transvenous embolization of arteriovenous fistulas of the cavernous sinus, achieved through the facial vein approach. The facial vein was catheterized from a jugular vein access. This cervical approach offered good stability to the guiding catheter that permitted us to negotiate difficult curves of the facial vein and to(More)
Single cell, network and population level modeling techniques all have their scope and limits in studying neurodynamic phenomena. Illustrations are given for using all the three techniques for understanding hippocampal dynamic phenomena occurring at diierent organizational levels. Multicompart-mental modeling is used here to systemaically investigate the(More)
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