Basic Research into Infants' Changes in Heart Rates at the Time of Hearing their Mothers' Heart Beats:

Possibility of Childcare Practice from a Viewpoint of Sense of Security

Abstract

The purpose of this research was to clarify by heart rate how infants respond to their mothers' heart beats by focusing on a sense of security. I measured a heart rate of 33 infants from 38.0 months to 74.0 months through hearing activity, hearing silence, mothers' heart beats sounds, and a music box sound. As a result, it was revealed that the mothers' heart beat sound, especially reduce the heart rate below the other sounds (silence or the music box). In this case, it was remarkable that hearing mothers' heart beats, especially decreased heart rates rather than silence. From the above results, I considered the effectiveness of mothers' heart beats in infants' places of development and showed the possibility of childcare practice.