ISSN : 1226-9654
인간의 양 눈에는 각각 어떠한 외부 정보도 받아들이지 못하는 맹점이 존재한다. 그럼에도 불구하고 맹점이 맹점 주변 정보나 반대편 눈을 통해 입력된 정보로 채워지기 때문에 우리는 외부 환경에서 빈 영역을 경험하지 않는다. 한쪽 눈의 맹점을 채우는 과정에 그 주변 정보가 기여한다는 사실에 대해서는 많은 연구가 이루어져 왔으나 반대편 눈 정보의 기여 여부와 그 상호 작용에 대해서는 보고된 바가 없다. 따라서 본 연구에서는 양안 경합 현상을 이용해 첫 번째로 한쪽 눈의 맹점이 채워질 때에 주변 정보 외에도 반대편 눈으로 들어온 정보가 이용될 수 있는지 여부를 알아보고자 하였다. 두 번째로는 반대편 눈으로 들어온 정보가 맹점 채우기에 이용된다면 이 정보와 맹점 주변 정보 중 어느 정보가 우세하게 사용되는지 여부를 알아보고자 하였다. 실험 결과, 한 눈의 맹점은 반대편 눈 정보에 의해서도 채워지며, 이는 주변 정보에 의해 채워지는 것보다 더 높은 빈도로 일어난다는 점이 확인되었다. 위와 같은 현상은 맹점에서만 발생하였다.
We have a blind spot for each eye that cannot receive visual inputs. Nonetheless, we do not experience empty space because of filling-in phenomena. Although many studies suggested that neighboring information around the blind spot contributed to filling-in of the blind spot, there has been few studies that investigated contribution from the other eye's information and its interaction with neighboring information. Our study investigated whether the opposite eye's information could contribute to filling-in process of the blind spot. We also investigated, between the opposite eye's and neighboring information, which information was more dominant in the process of filling-in. We found that the blind spot could be filled by the opposite eye's information and that information was more dominant in filling-in of the blind spot. These results were observed only in the blind spot.
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