Auditory evoked potential P300 in adults: reference values

OBJECTIVE: To establish reference intervals for cognitive potential P300 latency using tone burst stimuli. METHODS: This study involved 28 participants aged between 18 and 59 years. P300 recordings were performed using a two-channel device (Masbe, Contronic). Electrode placement was as follows: Fpz...

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Detalles Bibliográficos
Autores principales: Didoné, Dayane Domeneghini, Garcia, Michele Vargas, Oppitz, Sheila Jacques, da Silva, Thalisson Francisco Finamôr, dos Santos, Sinéia Neujahr, Bruno, Rúbia Soares, Filha, Valdete Alves Valentins dos Santos, Cóser, Pedro Luis
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Instituto Israelita de Ensino e Pesquisa Albert Einstein 2016
Materias:
Original Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4943355/
https://www.ncbi.nlm.nih.gov/pubmed/27462895
http://dx.doi.org/10.1590/S1679-45082016AO3586
Descripción
Sumario:OBJECTIVE: To establish reference intervals for cognitive potential P300 latency using tone burst stimuli. METHODS: This study involved 28 participants aged between 18 and 59 years. P300 recordings were performed using a two-channel device (Masbe, Contronic). Electrode placement was as follows: Fpz (ground electrode), Cz (active electrode), M1 and M2 (reference electrodes). Intensity corresponded to 80 dB HL and frequent and rare stimulus frequencies to 1,000Hz and 2,000Hz, respectively. Stimuli were delivered binaurally. RESULTS: Mean age of participants was 35 years. Average P300 latency was 305ms. CONCLUSION: Maximum acceptable P300 latency values of 362.5ms (305 + 2SD 28.75) were determined for adults aged 18 to 59 years using the protocol described.

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