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Pregled bibliografske jedinice broj: 209926

Časopis

Autori: Valerjev, Pavle; Šimić, Nataša
Naslov: How do sound rhythms affect heartbeat: Comparison of linear and non-linear analyses of R-R intervals
Izvornik: Review of psychology (1330-6812) 11 (2004), 1-2; 3-10
Vrsta rada: članak
Ključne riječi: Non-linear analyses ; Chaos ; Sound rhythms ; Heartbeat variability ; Lyapunov exponent
Sažetak:
A 2x3 within groups experiment experiment with two levels of sound intensity and three levels of tempo of sound rhythm was conducted. Eleven psychology students participated in the study. SMI index, 1/f spectra slopes and some non-linear parameters - correlation dimension and largest Lypunov exponents - were used. Decrease in SMI indexes in low and medium spectral bands occurred with more intensive sound rhythms as a function of rhythm tempo increase which may point to increased stress and mental load. Spectral analysis showed no clear interference between sound and cardiac rhythm. Changes in 1/f spectra slopes were similar to those of SMI indexes. A decrease in correlation dimension for more intensive rhythms points to decrease of series dimensionality, which is probably the result of domination of non-linear factors determining dynamic system. More evidence for such an interpretation was indicated by decrease in system predictability when exposed to sound rhythms, as shown by an increase in Lyapunov exponents.
Projekt / tema: 0070022
Izvorni jezik: ENG
Kategorija: Znanstveni
Znanstvena područja:
Psihologija
Puni text rada: 209926.Valerjev_2004_11_1_2.pdf (tekst priložen 13. Srp. 2018. u 10:18 sati)
URL cjelovitog teksta:
Google Scholar: How do sound rhythms affect heartbeat: Comparison of linear and non-linear analyses of R-R intervals



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