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  How the window of attention changes shape over time

Tse, P. (2000). How the window of attention changes shape over time. Perception, 29(ECVP Abstract Supplement), 100.

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Tse, PU1, 2, Author              
Affiliations:
1Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: When a brief blank is presented between two static images, attention is required to detect differences between those images (Rensink, 2000 Visual Cognition 7 345 - 376). A study is reported in which attention either remained at fixation (no precue), or was drawn to one of four positions away from fixation at random by cuing for 50 ms. At a variable duration after cue offset, the whole screen blanked for 50 ms in order to induce 'change blindness'. In the pre-flash image, red or green squares were placed on 50 of tested positions at random. In the post-flash image, a square was placed at one position that had previously been blank. Fixation was monitored. The proportion of answers above chance at a given point indicated the strength of attention there. The results show that while the shape of the 'window of attention' is approximately round in the no-precue condition, it resembles an ellipse with high aspect ratio in the cue conditions. This 'ellipse' is roughly centred at fixation and has the cued position near one end. Surprisingly, change detection is also enhanced on the opposite side of the fixation point from the cued location. The window seems to stretch like a sheet of latex both toward and away from the cued location simultaneously, before regaining its original form.

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 Dates: 2000-08
 Publication Status: Published in print
 Pages: -
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 Identifiers: BibTex Citekey: 163
DOI: 10.1177/03010066000290S101
 Degree: -

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Title: 23rd European Conference on Visual Perception (ECVP 2000)
Place of Event: Groningen, The Netherlands
Start-/End Date: 2000-08-27 - 2000-08-31

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Title: Perception
Source Genre: Journal
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Publ. Info: London : Pion Ltd.
Pages: - Volume / Issue: 29 (ECVP Abstract Supplement) Sequence Number: - Start / End Page: 100 Identifier: ISSN: 0301-0066
CoNE: https://pure.mpg.de/cone/journals/resource/954925509369