画像シフトによる変化の見落としにおける持続的注意の役割

• Published in: 心理学研究 Vol. 85; no. 6; pp. 603 - 608
• Main Authors: 横澤, 一彦, 中島, 亮一
• Format: Journal Article
• Language: Japanese
• Published: 公益社団法人 日本心理学会 2015
• Subjects: attention capture; flicker change detection task; shift-contingent change blindness; sustained attention
• ISSN: 0021-5236; 1884-1082
• DOI: 10.4992/jjpsy.85.14303

Previous studies of change blindness have examined the effect of temporal factors (e.g., blank duration) on attention in change detection. This study examined the effect of spatial factors (i.e., whether the locations of original and changed objects are the same or different) on attention in change detection, using a shift-contingent change blindness task. We used a flicker paradigm in which the location of a to-be-judged target image was manipulated (shift, no-shift). In shift conditions, the image of an array of objects was spatially shifted so that all objects appeared in new locations; in no-shift conditions, all object images of an array appeared at the same location. The presence of visual stimuli (dots) in the blank display between the two images was manipulated (dot, no-dot) under the assumption that abrupt onsets of these stimuli would capture attention. Results indicated that change detection performance was improved by exogenous attentional capture in the shift condition. Thus, we suggest that attention can play an important role in change detection during shift-contingent change blindness.