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  • 한국과학기술정보연구원(KISTI) 서울분원 대회의실(별관 3층)
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ISSN : 1226-9654

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Vol.32 No.4

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집단화 맥락에서 본 시각 작업 기억 표상 간의 상호작용

Interactions between Visual Working Memory Representations in Grouping Contexts

한국심리학회지: 인지 및 생물 / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2020, v.32 no.4, pp.355-368
https://doi.org/10.22172/cogbio.2020.32.4.006
신은삼 (연세대학교)
황성민 (연세대학교)
정상철 (연세대학교)
신은삼, 황성민, & 정상철. (2020). 집단화 맥락에서 본 시각 작업 기억 표상 간의 상호작용. 한국심리학회지: 인지 및 생물, 32(4), 355-368, https://doi.org/10.22172/cogbio.2020.32.4.006

Abstract

Studies have shown that stimulus representations interact in visual working memory (VWM). Using Gestalt grouping cues, we investigated how VWM representations of individual stimuli interact in grouping contexts. Two closely located colored circles (proximity) were connected or separated by a line (connectedness). These pairs were shown in memory and test arrays. Participants performed color change detection tasks in which they were asked not only to detect changes but also to locate the changed items. Color change was made to one (Experiment 1) or two (Experiment 2) item(s) in each test array. In Experiment 1, individual items grouped by both proximity and connectedness showed lower detection performance than those only by proximity. In Experiment 2, the colors of two stimuli changed in the same group (intragroup) or across different groups (intergroup). As in Experiment 1, the same grouping effect was observed in the intragroup-change condition. In addition, the change detections were better in the intragroup- than intergroup-change condition. This effect was reversed when data obtained from correctly detected (not necessarily located) trials were analyzed. Collectively, change detections of individual items differed depending on grouping strength, group membership status, and levels of data analysis, suggesting that items represented in VWM affect one another in a hierarchical structure.

keywords
stimulus representation, visual working memory, proximity, connectedness, hierarchical structure, 자극표상, 시각작업기억, 근접성, 연결성, 위계구조

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