맥락 정보가 심적 회전에 미치는 영향
The Effect of Context on Mental Rotation
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초록
본 연구는 맥락 정보가 심적 회전에 미치는 영향을 검증하였다. 첫 번째 실험에서는 심적 회전 시 주변 정보가 목표 자극을 회전하는데 미치는 영향을 조사하였다. 목표 글자와 주변 글자의 각도를 변화시키거나 좌우 글자의 위치를 바꾸어가며 목표 글자가 거울상인지 아닌지를 판단하게 하였다. 목표 글자는 세 글자로 이루어진 단어에서 가운데 글자로 정의하였고, 나머지 글자를 주변 글자로 정의하였다. 실험 결과 주변 글자의 회전 각도가 증가할수록 반응 시간이 증가하였다. 또한 목표 글자와 주변 글자의 회전 각도가 비슷할 때 반응 속도가 더 빠르게 나타났으며, 이러한 효과는 비단어 조건인 경우보다 단어 조건일 때 더 크게 나타났다. 두 번째 실험에서는 연습 난이도가 심적 회전에 미치는 영향을 조사하였다. 그 결과 회전 각도에 따라서 반응 시간이 증가하긴 했지만, 연습 시행 난이도는 심적 회전 시간에 영향을 미치지 않았다. 위와 같은 실험 결과는 심적 회전이 주변 맥락 정보에 의해서는 영향을 받지만 연습 난이도와 같은 사전 맥락 정보는 심적 회전에 영향을 미치지 않음을 시사한다.
Abstract
This study investigated whether contexts could influence the speed of mental rotation. Experiment 1 investigated whether the angle of neighboring letters influenced the recognition of the target letter. Reaction time of target recognition increased linearly, as angular differences between the angle of the target letter and that of neighboring letters increased. Moreover, this trend was more pronounced when the target and neighboring letters made a word as compared to when they did not. Experiment 2 examined the effects of practice difficulty on mental rotation. Reaction time again increased linearly with the degree of angular rotation. However, there were no significant differences between the easy and the difficult conditions. These results suggest that contextual information is important in mental rotation.
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