Clinical Neuroscience

[Emotion-related brain regions (in English language)]

SZILY Erika, KÉRI Szabolcs

MARCH 30, 2008

Clinical Neuroscience - 2008;61(03-04)

[Converging data from human functional imaging in healthy subjects, neuropsychological studies of brain-damaged patients, and non-human neurophysiology indicate that emotional processing is linked to anatomically distinct and well-defined brain regions. A main characteristic of emotion-related brain regions (orbitofrontal cortex, anterior cingulated cortex, amygdala, insula) is their reciprocal anatomical connectivity with each other as well as with neuromodulatory systems (e.g., serotonergic dorsal raphe, cholinergic nucleus basalis of Meynert, and dopaminergic ventral tegmentum) and with other brain areas involved in sensory, motor, and cognitive functions. These structures mediate the representation of stimulus values, the affectleaden enhancement of sensory processing, and the predictions of values associated with actions in order to bias decision-making in uncertain situations. In this review, we discuss new results from the functional neuroanatomy of these brain circuits and outline their significance in the emergence of various psychopathological phenomena.]



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Clinical Neuroscience

[Chosen, possessed, epileptic]


Clinical Neuroscience



[Objective - The conventional dorsal surgical approaches used in removal of intraspinal space-occupying lesions by unroofing the spinal canal, often result the destruction of dorsal bony structures, sacrifice the interspinosus/supraspinosus ligament complexes and stripping of the paraspinal muscles causing a pathologic biomechanical milieu may lead to spinal deformities, instability. Various less invasive techniques exist to save the integrity and to prevent the instability of the spinal column and allow removal of intraspinally located space-occupying lesions at the same time. The authors discuss the experiences with unilateral partial laminectomy approach in removal of intraspinally, mainly lateral, intra- or extradurally located pathologic lesions. Methods - The unilateral partial laminectomy, in which the laminas were preserved (hemi-semi laminectomy) was performed in 86 symptomatic patients to remove space-occupying intra- or extradurally located lesions of the cervical, thoracic and lumbar spinal canal. Symptoms were local or radicular pain, motor, sensory and vegetative disturbances. Results - Adequate surgery of the lesions located within the spinal canal was achieved in all patients using this approach. The hemi-semi laminectomy was performed at one spinal level in 68 patients, two levels in 15 and three levels in 3. The affected spine was the cervical in 16, the cervico-thoracic in 6, the thoracic in 35, the thoraco-lumbar in 10 and lumbar region in 19 cases. Histological results were as follows: 32 intradural meningeomas, 27 neurinomas, 10 ependymomas, 3 arachnoid cysts, 2 cavernomas and extradurally 4 epidural haemorrhage, 5 epidural abscesses and 3 dural vascular malformations. Conclusion - The unilateral partial laminectomy (named hemi-semi laminectomy) approach for the mainly laterally located intra- or extradural lesions, confined to one side, allow to minimize resection of and injury to tissues not directly involved in the pathologic process, while affording a safe and thorough removal of space-occupying pathologies and decompression of neural structures located in a spinal canal. Two additional advantages come from this technique in cases of misjudged level or at re-operation.]

Clinical Neuroscience



[Objective - The aim of this study is to reveal the volumetrical changes in tumor necrosis, reactive zone and edema following low-dose rate I-125 interstitial irradiation of 20 inoperable (partially irresecable, partially inoperable) lowgrade gliomas. Methods - The volumes of the three regions on imagefused control CT/MRI images were measured for a 24- month period with 36 occasions. The delivered dose on the tumor surface (GTV) was 50-60 Gy. Dose planning and image fusion were performed with the BrainLab Target 1.19 software, mathematical and statistical computations were carried out with the Matlab Numeric Computation and Visualization software. The control images with the „triple ring” were fused with the planning images, and the isodose curves were adjusted to them. Results - Relative volumes normalized to volume of the reference dose were calculated and plotted in the time domain. The mean values of volumes were determined from the patients' measured data then a polynom was fitted to the mean values using the polynomial curve fitting method. The accuracy of our results were verified by statistical tools. Conclusions - The new polynomial prediction approach using image fusion analysis of the volume of tumor necrosis, reactive ring and edema caused by interstitial irradiation as a function of time provides valuable information for 1. selecting the best patient’s treatment option, 2. following up patient’s condition and 3. planning reirradiation or reoperation if necessary.]

Clinical Neuroscience

[Szepesváraljai Sarbó Artúr (1867-1943)]

EMED Alexander

Clinical Neuroscience

[József Czopf MD, professor]


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