There was a difference in the latency of potentials N2 and P3 among the stimuli employed but no difference was observed for the P3 amplitude.

Purpose: Evaluate temporal ordering ability with different tests, verify the specificity of these tests and compare the result with the level of easiness/difficulty reported by the subjects. Methods: The subjects carried out basic audiological evaluation and Dichotic Digit Test, for auditory processing screening, and they also underwent Frequency Pattern Test (FPT) and Duration Pattern Test (TPD), in the versions of Taborga-Lizarro, Musiek and Auditec®, in order to evaluate the temporal ordering ability. Afterwards, the Visual Analogue Scale (VAS) was presented, so that the subjects could identify the difficulty of each test. Results: A total of 33 subjects were evaluated, being 29 women and four men, aged from 17 to 27 years. There were a higher number of individuals who have reached normal levels in Auditec® test and in Taborga-Lizarro test, for FPT and TPD. In the Musiek test, there were some subjects with normal results very close to the ones observed on subjects with processing disorders. In the distribution of the most difficult test, there was a statistical significance for the Musiek test. In terms of the specificity of the test, Auditec® proved to be better. However, the analysis was performed only on TPD. Conclusion: Although the subjects did not present change and auditory processing complaints, we found difference in the results of temporal ordering tests. In relation to the reported difficulty for Musiek test, we verified that there was influence of this factor on the test results.In the analysis for specificity tests, better results for the Auditec® test could be observed.

Purpose: to analyze masticatory function within different facial types through clinical and electromyographic evaluation of masseter and anterior temporalis muscles. Methods: sixty-five children aged six to 12 years old, males and females, who met the study criteria, were selected. The clinical evaluation of mastication was performed based on the MBGR protocol, as well as the electromiography of masseter and anterior temporalis muscles, on the right and left side in directed continued mastication. The data were analyzed considering the significance level of 5%. Results: in the clinical evaluation of mastication, no significant differences between the three facial types studied were observed, except for a tendency to significance in unexpected muscle contractions, with the highest occurrence observed in dolichofacials (66.67%), followed by mesofacials (46.67%) e brachyfacials (26.83%). Through electromyographic evaluation, no significant differences between the three groups studied were observed. Comparing the muscles within each facial type, a higher electrical activity of the right masseter muscle over the right temporal, and a higher electrical activity of the left temporal muscle over the right temporal muscle (p=0.049) was verified. Conclusion: the results of clinical and electromyographic evaluations of mastication did not differ within the facial types, suggesting that the pattern of facial growth itself is not a determinant in the modifications of the masticatory function and these modifications might be related to other variations not taken into account in this study. Keywords: Face; Cephalometry; Stomatognathic System; Mastication; Electromyography RESUMO Objetivo: analisar a função mastigatória nos diferentes padrões faciais de crescimento por meio da avaliação clínica e eletromiográfica dos músculos masseteres e temporais anteriores. Métodos: foram selecionadas 65 crianças entre seis e 12 anos de idade, de ambos os sexos, que se adequaram aos critérios do estudo. Foi realizada avaliação clínica da mastigação tendo por base o protocolo MBGR e a avaliação eletromiográfica dos músculos masseteres e temporais anteriores, mediante mastigação contínua direcionada. Os dados foram analisados considerando nível de significância de 5%. Resultados: na avaliação clínica da mastigação, não foi observada diferença significante entre os três padrões faciais estudados, apenas tendência à significância para as contrações musculares não esperadas, sendo observada maior ocorrência nos dolicofaciais (66,67%), seguido dos mesofaciais (46,67%) e braquifaciais (26,83%). Na avaliação eletromiográfica da mastigação, não foi observada diferença significante entre os três grupos estudados. Ao comparar os músculos para cada padrão facial, verificou-se nas crianças braquifaciais maior atividade elétrica do músculo masseter direito em relação ao temporal direito e maior atividade elétrica do músculo temporal esquerdo em relação ao músculo temporal direito (p=0,049). Conclusão: os resultados das avaliações clínica e eletrom...

Purpose: Evaluating the level of difficulty of identifying verbal and non-verbal stimuli, according to the classification of the participants, as well as comparing the latency of the P3 cortical potential. Methods:Thirty subjects, with a mean age of 23 years and normal hearing, were evaluated. The P3 potential was performed with non-verbal stimuli (tone burst) and verbal (/ba/ x /di/, /ba/ x /ga/, /ba/ x /da/). Each subject had to classify stimulus in "the easiest" and "the most difficult". Results:Most subjects rated the /ba/ x /di/ contrast as the easiest to identify and the contrast /ba/ x /ga/ the most difficult. The subjects reported that the speech stimulus were easier to identify when compared to tone burst.