Korean Journal of Cognitive Science (인지과학)

The Korean Society for Cognitive Science (한국인지과학회)
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The effect of binocular disparity and T-junction on brightness perception in White illusion

양안 시차와 T-교차 정보가White 착시 자극의 밝기 지각에 미치는 영향

  • 김경호 (광운대학교 산업심리학과) ;
  • 김신우 (광운대학교 산업심리학과) ;
  • 이형철 (광운대학교 산업심리학과)
  • Received : 2017.06.01
  • Accepted : 2017.06.20
  • Published : 2017.06.30
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Abstract

The purpose of the research was to examine the relative effect of binocular disparity and T-junction on the determination of object's belongingness in brightness perception when regular repeating structure was present in the stimuli. Using Howe's stimuli, the variation of White illusion stimuli, Experiment 1 found that object's belongingness was mainly determined by monocular information (T-junction as well as regular repeating structure) rather than by binocular disparity when both informations on belongingness were inconsistent. Experiment 2, using the stimuli employing only regular repeating structure and binocular disparity, found that object's belongingness was not determined by any single information. These results imply that when the regular repeating structure and binocular disparity are inconsistent on object's belongingness, T-junction plays an important role in the determination of the object's belongingness and that the brightness perception is affected by it.

본 연구의 목적은 규칙적으로 반복되는 구조가 존재하는 자극 상황에서 양안시차와 T-교차가 White 착시 자극의 밝기 지각에 미치는 영향을 검증하는 것이다. 실험 1은 White 착시 자극을 변형한 Howe (2005)의 자극을 사용하여 양안시차와 단안정보인 T-교차 및 규칙적 구조 정보가 소속성에 대하여 불일치한 정보를 가질 때 대상의 밝기 지각이 주로 단안 정보에 의해 결정됨을 발견하였다. 실험 2는 규칙적 구조 정보와 양안시차만 포함하는 자극을 사용하여 T-교차가 존재하지 않을 때 두 정보 중 어느 하나가 주도적으로 밝기 지각을 결정하지 못함을 발견하였다. 본 연구의 실험 결과는 규칙적 구조와 양안시차가 대상의 소속성에 대하여 불일치한 정보를 제공할 때 T-교차가 대상의 소속성 결정에 중요한 정보로 이용되며 그에 따라 대상의 밝기 지각이 영향 받을 수 있음을 시사한다.

Keywords

References

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