Measuring and modelling the trajectories of visual spatial attention
Measuring and modelling the trajectories of visual spatial attention
n a novel choice attention-gating paradigm, observers monitor a stream of 3x3 letter arrays until a tonal cue directs them to report 1 row. Analyses of the particular arrays from which reported letters are chosen and of the joint probabilities of reporting pairs of letters are used to derive a theory of attention dynamics. An attention window opens 0.15 s following a cue to attend to a location, remains open (minimally) 0.2 s, and admits information simultaneously from all the newly attended locations. The window dynamics are independent of the distance moved. The theory accounts for about 90% of the variance from the over 400 data points obtained from each of the observers in the 3 experiments reported here. With minor elaborations, it applies to all the principal paradigms used to study the dynamics of visual spatial attention.
260-305
Shih, Shui-I
06e53311-9263-4ce5-a124-c369570d20d6
Sperling, George
08454b57-73d2-433d-9c79-e92109dbfa62
April 2002
Shih, Shui-I
06e53311-9263-4ce5-a124-c369570d20d6
Sperling, George
08454b57-73d2-433d-9c79-e92109dbfa62
Shih, Shui-I and Sperling, George
(2002)
Measuring and modelling the trajectories of visual spatial attention.
Psychological Review, 109 (2), .
(doi:10.1037/0033-295X.109.2.260).
Abstract
n a novel choice attention-gating paradigm, observers monitor a stream of 3x3 letter arrays until a tonal cue directs them to report 1 row. Analyses of the particular arrays from which reported letters are chosen and of the joint probabilities of reporting pairs of letters are used to derive a theory of attention dynamics. An attention window opens 0.15 s following a cue to attend to a location, remains open (minimally) 0.2 s, and admits information simultaneously from all the newly attended locations. The window dynamics are independent of the distance moved. The theory accounts for about 90% of the variance from the over 400 data points obtained from each of the observers in the 3 experiments reported here. With minor elaborations, it applies to all the principal paradigms used to study the dynamics of visual spatial attention.
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Published date: April 2002
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Local EPrints ID: 18587
URI: http://eprints.soton.ac.uk/id/eprint/18587
ISSN: 0033-295X
PURE UUID: 890c2c7c-5e1e-4b01-b559-a157e3cd8852
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Date deposited: 14 Dec 2005
Last modified: 15 Mar 2024 06:06
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Author:
George Sperling
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