Estudo dos potenciais evocados de curta e longa latência em músicos e não músicos
Date
2025
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
IPCB. ESALD
Abstract
Introdução: Os Potenciais Evocados Auditivos de Curta Latência (PEACL) e os Potenciais Evocados Auditivos de Longa Latência (PEALL) são técnicas utilizadas para avaliar a via auditiva e o processamento neuronal. Tem-se estudado a influência da prática musical na neuroplasticidade e, consequentemente, nestes potenciais.
Objetivo: Investigar e analisar as diferenças na amplitude e na latência que surjam no estudo dos PEACL e PEALL com o objetivo de estabelecer a sua relação com a prática musical.
Materiais e métodos: A amostra foi dividida em dois grupos: grupo de músicos e grupo de não músicos. A partir da colocação de elétrodos conforme o Sistema Internacional 10-20 e de acordo com as montagens predefinidas, registou-se os PEACL e PEALL (P300 com tarefa oddball).
Resultados: Verificou-se que o grupo de músicos apresenta valores de latência significativamente menores nas ondas II, III, IV, V no lado direito e nas ondas I, II, III, V no lado esquerdo, do que os não músicos. Observou-se também que o grupo de músicos apresenta valores de amplitude do P300 significativamente maior nas posições Cz e Pz. A correlação de Spearman permitiu estabelecer uma relação estatisticamente significativa entre o número de horas de treino semanal e a latência das ondas II, III, IV e V.
Conclusão: Foi possível observar que músicos apresentam valores de latência do PEACL menores em ambos os ouvidos e amplitudes do P300 maiores quando comparados com não músicos. Estabeleceu-se ainda que existe uma correlação estatisticamente significativa entre o número de horas de treino na semana e a latência das ondas II, III, IV, V.
Abstract: Introduction: Short Latency Auditory Evoked Potentials (SLAEP) and Long Latency Auditory Evoked Potentials (LLAEP) are techniques used to evaluate the auditory system and neuronal processing. The influence of musical practice on neuroplasticity and, consequently, on these potentials has been studied. Objective: To investigate and analyze the differences in amplitude and latency that arise in the study of SLAEP and LLAEP with the aim of establishing their relationship with musical practice. Materials and methods: The sample was divided into two groups: a group of musicians and a group of non-musicians. Using electrodes placed according to the International 10-20 System and according to predefined setups, SLAEP and LLAEP (P300 with oddball task) were recorded. Results The musicians group exhibited significantly lower latency values in waves II, III, IV, and V on the right side, as well as in waves I, II, III, and V on the left side. It was observed that the group of musicians presented significantly higher P300 amplitude values in the group of musicians in the Cz and Pz positions. Spearman's correlation allowed us to establish a statistically significant relationship between the number of hours of weekly training and the latency of waves II, III, IV and V. Conclusion: It was possible to observe that musicians present lower SLAEP latency values in both ears and higher P300 amplitudes when compared to non-musicians. It was also established that there is a statistically significant correlation between the number of hours of training per week and the latency of waves II, III, IV, V.
Abstract: Introduction: Short Latency Auditory Evoked Potentials (SLAEP) and Long Latency Auditory Evoked Potentials (LLAEP) are techniques used to evaluate the auditory system and neuronal processing. The influence of musical practice on neuroplasticity and, consequently, on these potentials has been studied. Objective: To investigate and analyze the differences in amplitude and latency that arise in the study of SLAEP and LLAEP with the aim of establishing their relationship with musical practice. Materials and methods: The sample was divided into two groups: a group of musicians and a group of non-musicians. Using electrodes placed according to the International 10-20 System and according to predefined setups, SLAEP and LLAEP (P300 with oddball task) were recorded. Results The musicians group exhibited significantly lower latency values in waves II, III, IV, and V on the right side, as well as in waves I, II, III, and V on the left side. It was observed that the group of musicians presented significantly higher P300 amplitude values in the group of musicians in the Cz and Pz positions. Spearman's correlation allowed us to establish a statistically significant relationship between the number of hours of weekly training and the latency of waves II, III, IV and V. Conclusion: It was possible to observe that musicians present lower SLAEP latency values in both ears and higher P300 amplitudes when compared to non-musicians. It was also established that there is a statistically significant correlation between the number of hours of training per week and the latency of waves II, III, IV, V.
Description
Keywords
Potenciais evocados auditivos, Potenciais evocados auditivos do tronco encefálico, Potencial relacionado ao evento, Música, Auditory evoked potential, Auditory brainstem Evoked response, Event related potential, Music
Citation
RODRIGUES, Laura Ribeiro (2025) - Estudo dos potenciais evocados de curta e longa latência em músicos e não músicos. Castelo Branco : IPCB. ESALD. Trabalho de projeto de Fisiologia Clínica.