Abstract
The object of this study was to explore, within the context of common maternal administrations, by analysis of the stimulation to hold, and to swing the baby by maternal care person and their reactions. 
The stimulation to hold, and to swing by a maternal care person (stimulation Ⅰ) was given to eight crying healthy full-term infants. And, the stimulation that it was made by a mechanical vibration of cradle (stimulation Ⅱ) was given to 16 infants similarly. 
The results are summarized to the following; 
1. Stimulation Ⅰ stopped infants' cry by 19.0 seconds since stimulation started, and stimulation Ⅱ stopped them by 24.6 seconds. 
This fact showed that the infants stopped crying by each stimulation immediately. 
2. Stimulation Ⅰ showed the effect to the crying infants to correct their senses and to decrease their reactions. 
As for stimulations of both, there were few differences. 
But, stimulation Ⅰ brought calm period longer than stimulation Ⅱ. 
3. Heart rates decreased immediately after stimulation Ⅰ started, and their respiration rates decreased after the stimulation finished. 
The comparison of stimulation Ⅰ and Ⅱ showed heart rates decreases a significantly different. 
This study showed that stimulation Ⅰ and Ⅱ were enough effective to soothe their excitements of crying infants, as the stimulation from the outside. And it was suggested that stimulation Ⅰ more effective than stimulation Ⅱ.