지각부하 이론과 초기 시각 혼선 이론의 대안으로서의 주의 획득Attentional Capture as an Alternative view of Perceptual Load Theory and Early-Visual Crosstalk Account
- Other Titles
- Attentional Capture as an Alternative view of Perceptual Load Theory and Early-Visual Crosstalk Account
- Authors
- 서지현; 조양석
- Issue Date
- 2015
- Publisher
- 한국인지및생물심리학회
- Keywords
- Dilution; Perceptual load; Attentional capture; Conflict; Visual crosstalk; 희석; 지각적 부하; 주의 획득; 갈등; 시각 혼선
- Citation
- 한국심리학회지: 인지 및 생물, v.27, no.2, pp.121 - 149
- Indexed
- KCI
- Journal Title
- 한국심리학회지: 인지 및 생물
- Volume
- 27
- Number
- 2
- Start Page
- 121
- End Page
- 149
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/95194
- DOI
- 10.22172/cogbio.2015.27.2.003
- ISSN
- 1226-9654
- Abstract
- The perceptual load theory (Lavie & Tsal, 1994) and the dilution account (Tsal & Benoni, 2010) have been proposed to explain the phenomenon that the degree of irrelevant information processing decreases as the relevant stimulus-set size increases. The present study investigated the nature of the set-size effect on processing of task-irrelevant information. Under high perceptual load with a single distractor, no congruency effect was replicated in the present study. However, importantly, the congruency effect increased as the number (ratio) of distractor increased (Experiments 1 & 2). In dilution condition (Experiment 3), a larger congruency effect was found when a conflict distractor was located at the task-relevant array than at a task-irrelevant peripheral position, which is consistent with previous findings. However, an additional presentation of a distracting letter did not produce a larger congruency effect. These results indicate that the perceptual load effect by increasing the number of task-relevant items is a result of a reduced probability of attentional capture by a conflicting distractor. Furthermore, this selective processing occurs at a focused attention stage which implies that early-visual crosstalk is not an alternative explanation.
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