[The emotional reaction on other child patients caused by the crying of the uncooperative child patient].

The subjects were a total of 60 children, of which 30 were kindergarteners, and 30 were school age children. Changes in internal behavior were observed when the subjects were stimulated by only visual stimulation (V), only audio stimulation (A) and audio-visual stimulation (AV) of the crying of other child patients for 20 seconds each. The change ratios of the 3 stimuli were analyzed with respect to the plethysmogram (PL), the respiration curve (RC) and the galvanic skin reflex (GSR). The internal changes to the 3 stimuli of the crying were compared with difference in stimulus, age difference, sex difference, the difference of dental anxiety. 1) The change ratios decreased in the following order, AV greater than A greater than V on PL and RC. There were significant differences between V and A, also V and AV on PL and GSR. Based on the standardized score, the score decreased in the following order, AV greater than A greater than V, and there were significant differences between V and A, also V and AV. 2) Comparing age groups, kindergarteners showed larger change ratios than school age children for A and AV by GSR. Based on the standardized score, there were no significant age difference for each stimulation. 3) Comparing sex groups, there was a significant difference for A by PL. According to the standardized score, there was no significant sex difference for each stimulation. 4) There was no significant difference for each stimulation by the dental anxiety degree of the mother.