Potenciais evocados auditivos de longa latência (p300) em adultos jovens saudáveis: um estudo normativo / Auditory evoked long-latency potentials (P300) in healthy young adults: a normative study
O presente estudo teve como objetivo pesquisar estes potenciais numa população de adultos jovens saudáveis, estudando a latência e amplitude dos componentes para ambos os sexos, a fim de estabelecer um padrão normativo para futuros estudos. Material e
Os valores médios de latência e amplitude encontrados foram condizentes com a literatura consultada. Os sujeitos do sexofeminino apresentaram, significantemente, latências de N1, P2 e N2 menores e amplitude de N1 maior em relação aos do sexomasculino.
The long latency auditory evoked potentials (P300) it has been emphasized, in the current researches, as an instrument of investigation of the central auditory processing, related mainly with the cognitive processes.
Purpose:
The present study has as objective to research these potentials in a population of healthy young adults, studying the latency and amplitude of the components for both females and males, in order to establish a normative data for future studies including pathologies. Material and
methods:
Twenty individuals (10 females and 10 males) with normal hearing, without neurological history, of learning and stress (in the present moment) participed of this study.
Results:
The mean values obtained of latency and amplitude were agreeable with to consulted literature. The females presented latency of N1, P2 and N2 smaller than males and larger amplitude of N1 larger.