Clinical Neuroscience

[Experience gained from clinical use of amplitude integrators]

HASZNOS Tivadar1, VIRÁGH András1

DECEMBER 01, 1967

Clinical Neuroscience - 1967;20(12)

[In the above, we underline the importance of amplitude-time integrators in the objective evaluation of EEG curves. We describe the most typical solutions found in the literature. We present the integrator coupling used (RC and Miller integrator). We illustrate with an example the use of the device in normal and paroxysmal activity. The accuracy of the method is investigated. On this basis, a band-pass filter tunable to 7-13 Hz is used to eliminate the effect of artificial products. This solution offers an advantage over conventional integrators. Another advantage of the constructed system is the use of a pulse counter, from which the integral value can be read directly. ]

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  1. Budapesti Orvostudományi Egyetem Neurológiai és Psychiatriai Klinika

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Clinical Neuroscience

Données neurophysiologiques concernant la maturation de l’hippocampe

PASSOUANT P.

En dehors des recherches neurophysiologiques sur l'ontogenèse corticale (Elligson, Purpura), l'ontogenèse des connexions sous-corticales-corticales est peu étudiée, à l'exception de la formatio reticularis (Scheibel). Dans son étude, l'auteur cherche à répondre à la question de savoir comment l'ontogenèse de l'organe ammonien se reflète dans l'activité électromotrice pendant le sommeil et l'éveil (1) et comment le processus de maturation de la décharge de l'organe ammonien se reflète dans l'activité épileptique (2). Matériel d'étude : 80 chats, âgés de quelques heures à 2 mois. Durée du test : de quelques jours à plusieurs semaines. Électrodes implantées en stéréotaxie dans le cortex et le sous-cortex. Traitement histologique du cerveau après la fin de l'expérience pour localiser les électrodes.

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[In the light of recent knowledge on myopathies, the authors present their data on a pair of siblings with dystrophia musculorum progressiva and their clinically asymptomatic but enzymopathic family members, the first in the Hungarian literature.]

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[Due to the nature of the presentation and the short time available, I can only briefly summarise the pathogenetic and clinical problems associated with myopathies.]

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[A case of chronic thyrotoxic myopathy]

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[The authors describe a rare form of chronic thyrotoxic myopathy. No palpable goitre, tachycardia or exophthalmos were observed in the presence of severe myopathy. They briefly discuss the pathogenesis of chronic thyrotoxic myopathy and the possibilities of establishing a pathogenesis in similar cases.]

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[Authors have found, in agreement with the literature, that neuromyopathy is relatively common in diabetes. A systematic search for lesions is expected to increase the number of cases. The exact cause of the process is unknown, but its course can be objectively followed by EMG and measurement of nerve conduction velocity. In its management, a good control of diabetes, massive doses of vitamins and physiotherapy, in addition to the attempt of Thioctacid in refractory cases, is justified.]

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