| Abstract |
| This study identified heart response of participants while listening to sounds which have 1/f fluctuations with exponent α gradient. The participants were engaged in emotional stress work. Prior studies related to 1/f fluctuation sound have reported that sound source can alleviate psychological and physiological state of users. Subjects of this study were exposed to sound with three levels of α gradient. Heart response of subjects were measured with Photoplethysmography(PPG) sensor simultaneously. The dependent variables of this study were beat per minute(BPM), very low frequency percent of pulse rate variability (VLF percent), the standard deviation of all normal RR intervals (SDNN), and high frequency power(HF power). Subject showed arousal response when exposed to sound with exponent α gradient of 3 whereas the sound with exponent α gradient of 1 and 2 resulted in relax effect. The characteristic of 1/f fluctuation sounds can be applied to alleviate stress for employers under emotional labor. |
|
|
| Key Words |
| 감정노동, 스트레스 관리, 1/f 변동리듬, 심박변화율, Emotional labor, Stress management, 1/f fluctuation sound, SDNN(Standard Deviation of all normal RR intervals |
|
|
 |
|
