Modeling lag-2 revisits to understand trade-offs in mixed control of fixation termination during visual search
Modeling lag-2 revisits to understand trade-offs in mixed control of fixation termination during visual search
An important question about eye-movement behavior is when the decision is made to terminate a fixation and program the following saccade. Different approaches have found converging evidence in favor of a mixed-control account, in which there is some overlap between processing information at fixation and planning the following saccade. We examined one interesting instance of mixed control in visual search: lag-2 revisits, during which observers fixate a stimulus, move to a different stimulus, and then revisit the first stimulus on the next fixation. Results show that the probability of lag-2 revisits occurring increased with the number of target-similar stimuli, and revisits were preceded by a brief fixation on the intervening distractor-stimulus. We developed the Efficient Visual Sampling (EVS) computational model to simulate our findings (fixation durations and fixation locations), and to provide insight into mixed control of fixations and the perceptual, cognitive, and motor processes that produce lag-2 revisits.
996-1019
Godwin, H.J.
df22dc0c-01d1-440a-a369-a763801851e5
Reichle, E.D.
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Menneer, T.
d684eaf6-1494-4004-9973-cb8ccc628efa
May 2017
Godwin, H.J.
df22dc0c-01d1-440a-a369-a763801851e5
Reichle, E.D.
44dc4e6a-e5e2-47c5-9a09-2ef759db0583
Menneer, T.
d684eaf6-1494-4004-9973-cb8ccc628efa
Godwin, H.J., Reichle, E.D. and Menneer, T.
(2017)
Modeling lag-2 revisits to understand trade-offs in mixed control of fixation termination during visual search.
Cognitive Science, 41 (4), .
(doi:10.1111/cogs.12379).
Abstract
An important question about eye-movement behavior is when the decision is made to terminate a fixation and program the following saccade. Different approaches have found converging evidence in favor of a mixed-control account, in which there is some overlap between processing information at fixation and planning the following saccade. We examined one interesting instance of mixed control in visual search: lag-2 revisits, during which observers fixate a stimulus, move to a different stimulus, and then revisit the first stimulus on the next fixation. Results show that the probability of lag-2 revisits occurring increased with the number of target-similar stimuli, and revisits were preceded by a brief fixation on the intervening distractor-stimulus. We developed the Efficient Visual Sampling (EVS) computational model to simulate our findings (fixation durations and fixation locations), and to provide insight into mixed control of fixations and the perceptual, cognitive, and motor processes that produce lag-2 revisits.
Text
Lag-2 Revisits Manuscript Cognitive Science Final.docx
- Accepted Manuscript
More information
Accepted/In Press date: 26 January 2016
e-pub ahead of print date: 20 June 2016
Published date: May 2017
Identifiers
Local EPrints ID: 388784
URI: http://eprints.soton.ac.uk/id/eprint/388784
ISSN: 0364-0213
PURE UUID: 2242dad9-4b93-4a1e-980b-057b4aa79060
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Date deposited: 03 Mar 2016 11:05
Last modified: 15 Mar 2024 05:25
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Author:
E.D. Reichle
Author:
T. Menneer
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