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- Title
Effect of High-Resolution Audio on Function of Autonomic Nervous System.
- Authors
Shoji Ito; Toshihide Harada; Fumiko Ishizaki; Ryuta Yamamoto; Katsuyuki Niyada; Hiroyuki Miyazaki; Yumiko Nitta; Chiho Chikamura; Kenji Suehiro; Kohsaku Nitta
- Abstract
Objective: The quality of digital high-resolution audio has increased since 2010. Design: A clinical study. Materials and Methods: The present study used a spectral analysis of heart rate variability in 45 healthy Japanese individuals (age, 26.5 ± 5.7 y) to determine the effects of high-resolution audio on the function of the autonomic nervous system. Highcut audio (audible range, < 20 kHz; audio resolution, 24 bits) and high-resolution audio (audible and inaudible range, > 20 kHz; audio resolution, 24 bits) was used. The heart rate of each individual was determined using a pulsimeter with the sensor placed on the ventral tip of the index finger and acceleration plethysmography (APG). Heart rate variability (HRV) was determined in all participants using spectral analysis. Results: The results showed that the sympathetic and parasympathetic nervous systems were activated more by high-resolution, than high-cut audio. Conclusions: We plan to investigate the effects of high-resolution audio on the activation of attention and concentration in relaxed humans.
- Subjects
AUTONOMIC nervous system; HEART rate monitoring; JAPANESE people; STATISTICS; DATA analysis
- Publication
International Medical Journal, 2016, Vol 23, Issue 4, p339
- ISSN
1341-2051
- Publication type
Article