Filtering of distractors during visual search studied by positron emission tomography

A. C. Nobre; G. N. Sebestyen; D. R. Gitelman; C. D. Frith; M. M. Mesulam

doi:10.1006/nimg.2002.1137

Filtering of distractors during visual search studied by positron emission tomography

A. C. Nobre^*, G. N. Sebestyen, D. R. Gitelman, C. D. Frith, M. M. Mesulam

^*Corresponding author for this work

Neurology

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

We investigated the sensitivity of brain areas to the presence of filtering operations during overt visual search in crowded displays. Task conditions involved either visual search or predetermined simple eye movements for the detection of target digits. Furthermore, visual displays either contained letter foils that required filtering or contained only target digits. Brain imaging using positron emission tomography showed extensive overlap between areas involved in overt visual search and eye movements. Selective filtering of foils affected visual processing in ventral areas associated with object recognition and in primary visual cortex.

Original language	English (US)
Pages (from-to)	968-976
Number of pages	9
Journal	Neuroimage
Volume	16
Issue number	4
DOIs	https://doi.org/10.1006/nimg.2002.1137
State	Published - Aug 2002

Funding

The authors thank the two anonymous reviewers for their constructive criticisms and suggestions. The authors are indebted to the Wellcome Department of Cognitive Neurology for providing the facilities for the experiment. The experiments were funded by a project grant to A.C.N. by the Wellcome Trust.

ASJC Scopus subject areas

Neurology
Cognitive Neuroscience

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10.1006/nimg.2002.1137

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abstract = "We investigated the sensitivity of brain areas to the presence of filtering operations during overt visual search in crowded displays. Task conditions involved either visual search or predetermined simple eye movements for the detection of target digits. Furthermore, visual displays either contained letter foils that required filtering or contained only target digits. Brain imaging using positron emission tomography showed extensive overlap between areas involved in overt visual search and eye movements. Selective filtering of foils affected visual processing in ventral areas associated with object recognition and in primary visual cortex.",

author = "Nobre, {A. C.} and Sebestyen, {G. N.} and Gitelman, {D. R.} and Frith, {C. D.} and Mesulam, {M. M.}",

note = "Funding Information: The authors thank the two anonymous reviewers for their constructive criticisms and suggestions. The authors are indebted to the Wellcome Department of Cognitive Neurology for providing the facilities for the experiment. The experiments were funded by a project grant to A.C.N. by the Wellcome Trust.",

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AU - Sebestyen, G. N.

AU - Gitelman, D. R.

AU - Frith, C. D.

AU - Mesulam, M. M.

N1 - Funding Information: The authors thank the two anonymous reviewers for their constructive criticisms and suggestions. The authors are indebted to the Wellcome Department of Cognitive Neurology for providing the facilities for the experiment. The experiments were funded by a project grant to A.C.N. by the Wellcome Trust.

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Filtering of distractors during visual search studied by positron emission tomography

Abstract

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