Journal Archive

The Korean Journal of Cognitve & Biological Psychology - Vol. 30 , No. 4

[ Original Article ]
The Korean Journal of Cognitve & Biological Psychology - Vol. 30, No. 4, pp.327-351
Abbreviation: KCBPA
ISSN: 1226-9654 (Print)
Print publication date 30 Oct 2018
Received 18 Apr 2018 Revised 06 Sep 2018 Accepted 06 Sep 2018
DOI: https://doi.org/10.22172/cogbio.2018.30.4.002

주의와 양안 통합 지각 학습이 양안 간 억제 불균형 감소에 미치는 영향
이은빈1 ; 장지웅1, 2 ; 정상철1, 3,
1연세대학교 인지과학협동과정
2인제대학교 의과대학 일산백병원 안과학교실
3연세대학교 심리학과

The effect of attention and perceptual learning of binocular integration on reducing imbalanced interocular suppression
Eunbin Lee1 ; Ji Woong Chang1, 2 ; Sang Chul Chong1, 3,
1Graduate Program in Cognitive Science, Yonsei University
2Department of Ophthalmology, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea
3Department of Psychology, Yonsei University
Correspondence to : 정상철, 연세대학교 인지과학협동과정 및 심리학과, (03722) 서울특별시 서대문구 연세로 50 E-mail: scchong@yonsei.ac.kr


ⓒ The Korean Society for Cognitive and Biological Psychology
Funding Information ▼

초록

두 눈의 시력차가 큰 약시 환자들의 경우 양안 간 불균형적인 억제로 인해 양안 통합에 어려움을 겪는다(Meese, Georgeson, & Baker, 2006). 이를 해소하기 위해 본 연구에서는 먼저 양안 간 억제 측정법들을 상호 비교하였다(실험 1). 이 중 신뢰도가 가장 높으며, 다른 시각 기능을 가장 잘 반영하는 측정법(Xu, He, & Ooi, 2010; 실험 1)을 활용해 정상군 중 일정 수준 이상의 양안 간 불균형적인 억제를 형성하고 있는 참가자를 선정했다(실험 2). 그 후 Xu 등(2010)의 푸시풀 지각 학습법과 Hess, Mansouri와 Thompson(2010)의 양안 통합 지각 학습법을 이용해 양안 간 불균형적인 억제를 감소시키고자 했다(실험 3). 실험 결과 두 지각 학습법 모두 비슷한 정도로 양안 간 억제의 불균형을 감소시켰다. 또한 푸시풀 지각 학습법의 비우세안 특정적인 주의는 비우세안에 제시되는 자극의 정보 처리를 촉진시켰고, 우세안이 비우세안을 억제하는 정도를 감소시킴으로써 양안 간 억제의 불균형 감소가 신속하게 나타나도록 유도했다(실험 3). 이 결과는 두 지각 학습법과 비우세안 특정적인 주의가 양안 간 억제의 불균형을 감소하는 데 중요한 역할을 한다는 것을 시사한다.

Abstract

People, who have a large difference in visual acuity between the two eyes, have trouble in binocular integration because of imbalanced interocular suppression which occurs before binocular summation (Meese, Georgeson, & Baker, 2006). To reduce imbalanced interocular suppression, the current study first compared three SED–measurement methods suggested by previous studies (Experiment 1). In Experiment 2, we selected participants who had large imbalance of interocular suppression by using Xu, He, and Ooi (2012)’s method which had the highest reliability and reflected the other visual abilities better than the other methods in Experiment 1. Those who were selected participated in Experiment 3, designed to reduce imbalance of interocular suppression by using a push-pull protocol (Xu, He, & Ooi, 2010) and perceptual learning of binocular integration (Hess, Mansouri, & Thompson, 2010). We found both training methods were effective in reducing imbalance of interocular suppression. The effect of non-dominant eye-specific attention was manifested in two different ways: facilitating information processing of a non-dominant eye and suppressing a dominant eye for faster emergence of significant reduction of the interocular suppression. Our results suggest that non-dominant eye-specific attention plays a critical role in reducing imbalanced interocular suppression.


Keywords: Attention, Perceptual learning, Interocular suppression, Amblyopia
키워드: 주의, 지각 학습, 양안 간 억제, 약시

Acknowledgments

이 성과는 2018년도 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(NRF-2016R1A2B4016171).


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