Abstract

GUTIERREZ GIRALDO, Natalia; RANGEL GALVIS, Carlos E.  and  TOVAR C., José Rafael. Cognitive Evoked Potential Measurement, P300, in a group of healthy Colombian individuals. Rev. Cienc. Salud [online]. 2013, vol.11, n.2, pp.195-204. ISSN 1692-7273.

Cognitive evoked potentials are electrophysiological measurements of cognitive functions. Cognitive potential P300 is specifically related to attention processes. Objetive: the aim of this study was to establish reference values for latency and amplitude of P300 wave in the Colombian population and determine their variability with age, gender and education of the subjects. Methods: we studied 122 healthy subjects between 6 and 80 years, are practical potential measurement methodology as odd-ball, in leads Cz and Pz. Results: we were able to establish reference values for different age groups, and statistical significance was found with which the latency of P300 wave increases with the age of individuals, and instead thereof the amplitude tends to decrease. Similarly to correlate latency and amplitude was shown an inverse relationship between them. Conclusions: no differences were found for latency and wave amplitude, gender-related or school subjects as well as no difference was found when measuring the Pz derivation obtained compared with the wave in lead Cz.

Keywords : potential; cognitive evoked; healthy individuals; derivation Pz; derivation Cz.

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