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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Association between heart rhythm and cortical sound processing

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Autor(es):
Marcomini, Renata S. [1] ; Frizzo, Ana Claudia F. [1] ; de Goes, Viviane B. [1] ; Regacone, Simone F. [1] ; Garner, David M. [2] ; Raimundo, Rodrigo D. [3] ; Oliveira, Fernando R. [4] ; Valenti, Vitor E. [1]
Número total de Autores: 8
Afiliação do(s) autor(es):
[1] UNESP, CESNA, Dept Fonoaudiol, Fac Filosofia & Ciencias, Rua Hygino Muzy Filho 737, BR-17525900 Mirante, SP - Brazil
[2] Oxford Brookes Univ, Cardioresp Res Grp, Dept Biol & Med Sci, Fac Hlth & Life Sci, Gipsy Lane, Oxford OX3 0BP - England
[3] Fac Med ABC, Lab Delineamento Estudos & Escrita Cient, Av Lauro Gomes 2000, BR-09060870 Santo Andre, SP - Brazil
[4] Univ Sao Paulo, Fac Saude Publ, Av Dr Arnaldo 715, BR-03178200 Sao Paulo, SP - Brazil
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF INTEGRATIVE NEUROSCIENCE; v. 17, n. 3, p. 425-438, 2018.
Citações Web of Science: 0
Resumo

Sound signal processing signifies an important factor for human conscious communication and it may be assessed through cortical auditory evoked potentials (CAEP). Heart rate variability (HRV) provides information about heart rate autonomic regulation. We investigated the association between resting HRV and CAEP. We evaluated resting HRV in the time and frequency domain and the CAEP components. The subjects remained at rest for 10 minutes for HRV recording, then they performed the CAEP examinations through frequency and duration protocols in both ears. Linear regression indicated that the amplitude of the N2 wave of the CAEP in the left ear (not right ear) was significantly influenced by standard deviation of normal-to-normal RR-intervals (17.7%) and percentage of adjacent RR-intervals with a difference of duration greater than 50 milliseconds (25.3%) time domain HRV indices in the frequency protocol. In the duration protocol and in the left ear the latency of the P2 wave was significantly influenced by low (LF) (20.8%) and high frequency (HF) bands in normalized units (21%) and LF/HF ratio (22.4%) indices of HRV spectral analysis. The latency of the N2 wave was significantly influenced by LF (25.8%), HF (25.9%) and LF/HF (28.8%). In conclusion, we promote the supposition that resting heart rhythm is associated with thalamo-cortical, cortical-cortical and auditory cortex pathways involved with auditory processing in the right hemisphere. (AU)

Processo FAPESP: 12/01366-6 - Efeito de diferentes estímulos auditivos sobre a regulação autonômica cardíaca
Beneficiário:Vitor Engrácia Valenti
Linha de fomento: Auxílio à Pesquisa - Regular