Ritmos cerebrales: componente frecuencial theta dominante asociado a perros con epilepsia idiopática
Abstract
We investigated the brain electrical activity of dogs with classic idiopathic epilepsy (EIC) by the quantitative electroencephalogram (EEGc), using the brainwave coherence analysis. Quantification of electroencephalogram (EEG) of 24 healthy adult dogs and 24 adults’ dogs with EIC was performed. The spectral estimation is performed for interhemispheric channel comparing frequency values for both groups by measuring the maximun of power spectra (PPC). In both groups of dogs, channels recorded activity of dorsal neocortex has a different electrical behavior which registered the channels in the temporal cortex. Moreover the value in the dogs with EIC often presented PPC lower than in healthy dogs, and is located within the range 4-7 Hz. This finding could be related to the appearance of a theta oscillator, thalamic or cortical origin, which acts by modulating the activity in thalamocortical circuit. The study of the frequency spectrum is presented as a tool for analyzing parameters of brain activity and thus distinguish and characterize the electrical activity from different oscillating systems, in healthy dogs and dogs with brain pathologies.
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