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Cat and mouse search: the influence of scene and object analysis on eye movements when targets change locations during search

Cat and mouse search: the influence of scene and object analysis on eye movements when targets change locations during search
Cat and mouse search: the influence of scene and object analysis on eye movements when targets change locations during search
We explored the influence of early scene analysis and visible object characteristics on eye movements when searching for objects in photographs of scenes. On each trial, participants were shown sequentially either a scene preview or a uniform grey screen (250 ms), a visual mask, the name of the target and the scene, now including the target at a likely location. During the participant's first saccade during search, the target location was changed to: (i) a different likely location, (ii) an unlikely but possible location or (iii) a very implausible location. The results showed that the first saccade landed more often on the likely location in which the target re-appeared than on unlikely or implausible locations, and overall the first saccade landed nearer the first target location with a preview than without. Hence, rapid scene analysis influenced initial eye movement planning, but availability of the target rapidly modified that plan. After the target moved, it was found more quickly when it appeared in a likely location than when it appeared in an unlikely or implausible location. The findings show that both scene gist and object properties are extracted rapidly, and are used in conjunction to guide saccadic eye movements during visual search.
0962-8436
Hillstrom, Anne P.
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Segabinazi, Joice D.
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Godwin, Hayward J.
df22dc0c-01d1-440a-a369-a763801851e5
Liversedge, Simon P.
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Benson, Valerie
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Hillstrom, Anne P.
835d455d-6b9e-4ee3-a619-6249f759c66c
Segabinazi, Joice D.
42fae093-57cc-48c2-a965-a47ebbc17863
Godwin, Hayward J.
df22dc0c-01d1-440a-a369-a763801851e5
Liversedge, Simon P.
3ebda3f3-d930-4f89-85d5-5654d8fe7dee
Benson, Valerie
4827cede-6668-4e3d-bded-ade4cd5e5db5

Hillstrom, Anne P., Segabinazi, Joice D., Godwin, Hayward J., Liversedge, Simon P. and Benson, Valerie (2017) Cat and mouse search: the influence of scene and object analysis on eye movements when targets change locations during search. Philosophical Transactions of The Royal Society B Biological Sciences, 372 (1714), [20160106]. (doi:10.1098/rstb.2016.0106). (PMID:28044017)

Record type: Article

Abstract

We explored the influence of early scene analysis and visible object characteristics on eye movements when searching for objects in photographs of scenes. On each trial, participants were shown sequentially either a scene preview or a uniform grey screen (250 ms), a visual mask, the name of the target and the scene, now including the target at a likely location. During the participant's first saccade during search, the target location was changed to: (i) a different likely location, (ii) an unlikely but possible location or (iii) a very implausible location. The results showed that the first saccade landed more often on the likely location in which the target re-appeared than on unlikely or implausible locations, and overall the first saccade landed nearer the first target location with a preview than without. Hence, rapid scene analysis influenced initial eye movement planning, but availability of the target rapidly modified that plan. After the target moved, it was found more quickly when it appeared in a likely location than when it appeared in an unlikely or implausible location. The findings show that both scene gist and object properties are extracted rapidly, and are used in conjunction to guide saccadic eye movements during visual search.

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Accepted/In Press date: 27 October 2016
e-pub ahead of print date: 2 January 2017
Published date: 19 February 2017

Identifiers

Local EPrints ID: 405136
URI: http://eprints.soton.ac.uk/id/eprint/405136
ISSN: 0962-8436
PURE UUID: a352992b-ca36-44d3-9c5d-f0fce53a0fa8
ORCID for Hayward J. Godwin: ORCID iD orcid.org/0009-0005-1232-500X

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Date deposited: 27 Jan 2017 13:56
Last modified: 16 Mar 2024 04:01

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Contributors

Author: Anne P. Hillstrom
Author: Joice D. Segabinazi
Author: Simon P. Liversedge
Author: Valerie Benson

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