Looking at scenes while searching for numbers: dividing attention multiplies space.

@article{Intraub2008LookingAS,
  title={Looking at scenes while searching for numbers: dividing attention multiplies space.},
  author={Helene Intraub and Karen K Daniels and Todd Horowitz and Jeremy M. Wolfe},
  journal={Perception & psychophysics},
  year={2008},
  volume={70 7},
  pages={1337-49}
}
Observers tend to remember seeing a greater expanse of a scene than was shown (boundary extension [BE]). Is undivided visual attention necessary for BE? In Experiment 1, 108 observers viewed photographs with superimposed numerals (2s and 5s). Each appeared for 750 msec, followed by a masked interval and a test picture (same, closer up, or wider angled). Test pictures were rated as the same, closer, or wider angled on a 5-point scale. Visual attention was manipulated with a search task: The… CONTINUE READING

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