Cortical auditory evoked potentials using the speech stimulus /ma/

Purpose: to compare cortical auditory evoked responses using two speech stimuli, /ma/ and /da/, in normally hearing young adults. Methods: a cross-sectional, observational analytical study, with sample composed of nineteen adults, recruited by convenience, ages between 18 25 years old, from both genders, participated the study. Cortical potentials (CAEP) were monaurally recorded conditions: 1) pair stimuli /ba/ 2), /ma/. The order experiments was randomized proportion 50% for each totaling 100 experiment. Speech sounds presented at 70 dB SPL. Descriptive statistical tests performed. Results: mean latency values complex P1, N1, P2, N2 P3 lower when compared those /da/ (p <0,05). There no difference amplitude /da/. Conclusion: potentials, elicited stimulus had, on average, peaks P1-N1-P2-N2 P3,