期刊
PSYCHOLOGICAL SCIENCE
卷 12, 期 1, 页码 9-17出版社
BLACKWELL PUBLISHERS
DOI: 10.1111/1467-9280.00303
关键词
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资金
- NIMH NIH HHS [F32-MH12 483-01] Funding Source: Medline
- NATIONAL INSTITUTE OF MENTAL HEALTH [F32MH012483] Funding Source: NIH RePORTER
When people attend to objects or events in a visual display, they often fail to notice an additional, unexpected, but fully visible object or event in the same display. This phenomenon is now known as inattentional blindness. We present a new approach to the study of sustained inattentional blindness for dynamic events in order to explore the roles of similarity, distinctiveness, and attentional set in the detection of unexpected objects. In Experiment 1, we found that the similarity of an unexpected object to other objects in the display influences attentional capture. The more similar an unexpected object is to the attended items, and the greater its difference from the ignored items, the more likely; it is that people will notice it. Experiment 2 explored whether this effect of similarity is driven by selective ignoring of irrelevant items or by selective focusing on attended items. The results of Experiment 3 suggest that the distinctiveness of the unexpected object alone cannot entirely account for the similarity effects found in the first two experiments; when attending to black items or white items in a dynamic display, nearly 30% of observers failed to notice a bright red cross move, across the display even though it had a unique color luminance, shape, and motion trajectory and was visible for 5 s. Together, the results suggest that inattentional blindness for ongoing dynamic events depends both on the similarity of the unexpected object to the other objects in the display and on the observer's attentional set.
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