2005, Number 5
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Rev Mex Neuroci 2005; 6 (5)
West syndrome: a chronobiological approximation and voice analysis
Ruiz MF, Escobedo BDI, Cano OS, Siegmund R
Language: Spanish
References: 29
Page: 384-392
PDF size: 233.75 Kb.
ABSTRACT
Introduction. The study of the human temporary structure by means of the Rhythmmetrics, its relation to the clinical praxis on evaluating the behavior of the of sleep-alertness and activity-rest cycles in patients with West syndrome (WS), and the acoustic analysis of voice (crying and prevocalizations), constitute a novel focus in the functional evaluation of the nervous system of these patients.
Material and Method. The activity-rest and sleep-alertness cycles were studied in two patients affected by the WS, using an actometer brand ZAK, German make. At the same time, the parents kept a diary with a periodicity of 20 minutes, specifying the schedule of foods, consumption of medicines, presence of crisis and data about the dream of the patients. After that, the actograms, which are the quantitative registration of the continuous motorboat activity, were obtained. The voice was registered (crying and prevocalizations) through a recorder AKAI PM-R55, and for the digitalization and the prosecution a microcomputer and the software PCVOX and BPVOZ were utilized.
Results. Presence of a clear ultradian sleep-alertness activity was observed in one case. In the other case the patient was done showed a great hyperkinesia, with a circadian profile and a tendency to the change of dream phase. An increase of the fundamental frequency was observed in both cases, as well as alterations in other acoustic attributes related to the harmonic behavior, such as the tone, melody, presence of turmoils, among others.
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