|Attention: Kramer and Hahn 1995|
Sample Data Files
|Citation||Kramer, A.F., & Hahn, S. (1995). Splitting the beam: Distribution of attention over noncontiguous regions of the visual field. Psychological Science, 6, 381-386. (PDF)|
|Summary of Experiment||Two regions on the screen that do not touch are cued, and participants are supposed to determine which target appears in them. Distractors are flashed between them, in an effort to confuse the participants.
The findings suggest that people can actually attend to noncontiguous regions in the visual field.
|Related Studies in this Corpus||Posner, Snyder, and Davidson 1980, Eriksen and St. James 1986, Lupiáñez et al. 1997|
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|Works in Set that Cite this Study|
|Study Abstract||In an effort to examine the flexibility with which attention can be allocated in visual space, we investigated whether subjects could selectiely attend to multiple noncontiguous locations in the visual field. We examined this issue by precuing two separate areas of the visual field and requiring subjects to decide whether the letters that appeared in these locations matched or mismatched while distractors that primed either the match or mismatch response were presented between the cued locations. If the distractors had no effect on performance, it would provide evidence that subjects can divide attention over noncontiguous areas of space. Subjects were able to ignore the distractors when the targets and distractors were presented as nononset stimuli (i.e., wen premasks were changed into the targets and distractors). In contrast, when the targets and distractors were presented as sudden-onset stimuli, subjects were unable to ignore the distractors. These results begin to define the conditions under which attention can be flexibly deployed to multiple noncontiguous locations in the visual field.|
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