시각이 차단된 상태에서 머리 위치 인식을 위한 초음파 음성유도기(SONIC ID)의 효과 = The Effect of SONIC ID on Head Position Recognition When Eyes Closed

다국어 초록 (Multilingual Abstract)

The purpose of this study was to investigate the effect of SONIC ID on head position recognition. Twenty visually intact healthy adults(age : 22.4±1.4 years) without neck pain (Korean neck disability index score : 0~4 points) participated in this study. The head repositioning angle errors were measured during the head repositioning test eyes closed. Using a two-way repeated measure analysis of variance(ANOVA), this experiment investigates the main effect of and the interactions between equipment conditions(binaural headset, monaural headset, and no headset) and head rotation angles(0°, 20°, 40°).
The results of this study were as follows: 1) The interaction between equipment conditions and head rotation angles was not determinated(p >.05). 2) There was significant main effect by equipment condition(p <.05), however, no significant difference was noted by head rotation angle.
In post-hoc test, the result of a pairwise comparisons showed the following: 1) The difference between wearing a monaural headset and a binaural headset condition, and the difference between wearing a monaural headset and not wearing headset condition were significant. 2) The difference in wearing a binaural headset and not wearing a headset condition was not significant. Therefore, we suggest that SONIC ID with monaural headset would be beneficial to people with visual impairment to postural adjustment in trunk and neck area by assisting recognition of body positioning.

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