Salient collinear grouping diminishes local salience in visual search: An eye movement study
學年 102
學期 1
出版（發表）日期 2013-10-01
作品名稱 Salient collinear grouping diminishes local salience in visual search: An eye movement study
作品名稱（其他語言）
著者 Li Jingling; Tang, Da-Lun; Tseng, Chia-huei
單位 淡江大學大眾傳播學系
出版者 Rockville: Association for Research in Vision and Ophthalmology
著錄名稱、卷期、頁數 Journal of Vision 13(12), pp.1-10
摘要 Our eyes and attention are easily attracted to salient items in search displays. When a target is spatially overlapped with a salient distractor (overlapping target), it is usually detected more easily than when it is not (nonoverlapping target). Jingling and Tseng (2013), however, found that a salient distractor impaired visual search when the distractor was comprised of more than nine bars collinearly aligned to each other. In this study, we examined whether this search impairment is due to reduction of salience on overlapping targets. We used the short-latency saccades as an index for perceptual salience. Results showed that a long collinear distractor decreases perceptual salience of local overlapping targets in comparison to nonoverlapping targets, reflected by a smaller proportion of the short-latency saccades. Meanwhile, a salient noncollinear distractor increases salience of overlapping targets. Our results led us to conclude that a long collinear distractor diminishes the perceptual salience of the target, a factor which poses a counter-intuitive condition in which a target on a salient region becomes less salient. We discuss the possible causes for our findings, including crowding, the global precedence effect, and the filling-in of a collinear contour.
關鍵字 attentional capture; collinearity; saccades; salience; visual search
語言 en_US
ISSN 1534-7362
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 李金鈴Li Jingling
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版
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